Select different State:
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| Salisbury Point Post Office (historical) | Salisbury Point Post Office (historical) | Essex | 20 | Newburyport West |
| John Buttrick House Post Office (historical) | John Buttrick House Post Office (historical) | Middlesex | 141 | Concord |
| Medway Post Office (historical) | Medway Post Office (historical) | Norfolk | 161 | Holliston |
| Caryville Post Office (historical) | Caryville Post Office (historical) | Norfolk | 200 | Holliston |
| Wellesley Post Office (historical) | Wellesley Post Office (historical) | Norfolk | 148 | Natick |
| Charles River Post Office (historical) | Charles River Post Office (historical) | Norfolk | 125 | Natick |
| Wellesley Hills Post Office (historical) | Wellesley Hills Post Office (historical) | Norfolk | 167 | Natick |
| Dedham Post Office (historical) | Dedham Post Office (historical) | Norfolk | 118 | Newton |
| Nantasket Post Office (historical) | Nantasket Post Office (historical) | Norfolk | 7 | Nantasket Beach |
| Atlantic Post Office (historical) | Atlantic Post Office (historical) | Norfolk | 30 | Boston South |
| Wollaston Post Office (historical) | Wollaston Post Office (historical) | Norfolk | 20 | Boston South |
| Marion Post Office (historical) | Marion Post Office (historical) | Plymouth | 10 | Marion |
| Onset Post Office (historical) | Onset Post Office (historical) | Plymouth | 23 | Onset |
| Rochester Post Office (historical) | Rochester Post Office (historical) | Plymouth | 33 | Marion |
| Mattapoisett Post Office (historical) | Mattapoisett Post Office (historical) | Plymouth | 52 | Marion |
| South Wareham Post Office (historical) | South Wareham Post Office (historical) | Plymouth | 72 | Wareham |
| Wareham Post Office (historical) | Wareham Post Office (historical) | Plymouth | 30 | Wareham |
| East Wareham Post Office (historical) | East Wareham Post Office (historical) | Plymouth | 20 | Wareham |
| Rock Post Office (historical) | Rock Post Office (historical) | Plymouth | 72 | Snipatuit Pond |
| South Middleborough Post Office (historical) | South Middleborough Post Office (historical) | Plymouth | 115 | Snipatuit Pond |
| West Wareham Post Office (historical) | West Wareham Post Office (historical) | Plymouth | 72 | Snipatuit Pond |
| North Rochester Post Office (historical) | North Rochester Post Office (historical) | Plymouth | 89 | Assawompset Pond |
| Manomet Post Office (historical) | Manomet Post Office (historical) | Plymouth | 36 | Manomet |
| Kingston Post Office (historical) | Kingston Post Office (historical) | Plymouth | 79 | Plymouth |
| North Plymouth Post Office (historical) | North Plymouth Post Office (historical) | Plymouth | 23 | Plymouth |
| Chiltonville Post Office (historical) | Chiltonville Post Office (historical) | Plymouth | 79 | Plymouth |
| Carver Post Office (historical) | Carver Post Office (historical) | Plymouth | 95 | Plympton |
| East Carver Post Office (historical) | East Carver Post Office (historical) | Plymouth | 108 | Plympton |
| North Carver Post Office (historical) | North Carver Post Office (historical) | Plymouth | 95 | Plympton |
| North Plympton Post Office (historical) | North Plympton Post Office (historical) | Plymouth | 56 | Plympton |
| Halifax Post Office (historical) | Halifax Post Office (historical) | Plymouth | 72 | Plympton |
| Plympton Post Office (historical) | Plympton Post Office (historical) | Plymouth | 85 | Plympton |
| Eddyville Post Office (historical) | Eddyville Post Office (historical) | Plymouth | 75 | Plympton |
| North Middleborough Post Office (historical) | North Middleborough Post Office (historical) | Plymouth | 52 | Bridgewater |
| Bridgewater Post Office (historical) | Bridgewater Post Office (historical) | Plymouth | 52 | Bridgewater |
| Scotland Post Office (historical) | Scotland Post Office (historical) | Plymouth | 125 | Taunton |
| Hull Post Office (historical) | Hull Post Office (historical) | Plymouth | 3 | Hull |
| Matfield Post Office (historical) | Matfield Post Office (historical) | Plymouth | 79 | Whitman |
| South Easton Post Office (historical) | South Easton Post Office (historical) | Plymouth | 102 | Brockton |
| Eastondale Post Office (historical) | Eastondale Post Office (historical) | Plymouth | 89 | Brockton |
| Brockton Post Office (historical) | Brockton Post Office (historical) | Plymouth | 118 | Brockton |
| Brockton Station Post Office (historical) | Brockton Station Post Office (historical) | Plymouth | 118 | Brockton |
| Campello Post Office (historical) | Campello Post Office (historical) | Plymouth | 128 | Brockton |
| West Bridgewater Post Office (historical) | West Bridgewater Post Office (historical) | Plymouth | 89 | Brockton |
| Cochesett Post Office (historical) | Cochesett Post Office (historical) | Plymouth | 92 | Brockton |
| Elmwood Post Office (historical) | Elmwood Post Office (historical) | Plymouth | 59 | Whitman |
| Westdale Post Office (historical) | Westdale Post Office (historical) | Plymouth | 82 | Whitman |
| East Bridgewater Post Office (historical) | East Bridgewater Post Office (historical) | Plymouth | 49 | Whitman |
| Bryantville Post Office (historical) | Bryantville Post Office (historical) | Plymouth | 85 | Hanover |
| Silver Lake Post Office (historical) | Silver Lake Post Office (historical) | Plymouth | 72 | Hanover |
| West Dunbury Post Office (historical) | West Dunbury Post Office (historical) | Plymouth | 121 | Hanover |
| East Pembroke Post Office (historical) | East Pembroke Post Office (historical) | Plymouth | 39 | Hanover |
| Pembroke Post Office (historical) | Pembroke Post Office (historical) | Plymouth | 52 | Hanover |
| South Hanover Post Office (historical) | South Hanover Post Office (historical) | Plymouth | 62 | Hanover |
| Four Corners Post Office (historical) | Four Corners Post Office (historical) | Plymouth | 66 | Hanover |
| North Pembroke Post Office (historical) | North Pembroke Post Office (historical) | Plymouth | 33 | Hanover |
| South Hanson Post Office (historical) | South Hanson Post Office (historical) | Plymouth | 79 | Whitman |
| North Hanson Post Office (historical) | North Hanson Post Office (historical) | Plymouth | 69 | Whitman |
| Whitman Post Office (historical) | Whitman Post Office (historical) | Plymouth | 112 | Whitman |
| Abington Post Office (historical) | Abington Post Office (historical) | Plymouth | 108 | Whitman |
| Hatherly Post Office (historical) | Hatherly Post Office (historical) | Plymouth | 164 | Weymouth |
| West Hingham Post Office (historical) | West Hingham Post Office (historical) | Plymouth | 26 | Weymouth |
| Hingham Center Post Office (historical) | Hingham Center Post Office (historical) | Plymouth | 46 | Weymouth |
| South Hingham Post Office (historical) | South Hingham Post Office (historical) | Plymouth | 72 | Weymouth |
| North Hanover Post Office (historical) | North Hanover Post Office (historical) | Plymouth | 108 | Cohasset |
| West Scituate Post Office (historical) | West Scituate Post Office (historical) | Plymouth | 148 | Cohasset |
| Mount Blue Post Office (historical) | Mount Blue Post Office (historical) | Plymouth | 112 | Cohasset |
| Green Harbor Village Post Office (historical) | Green Harbor Village Post Office (historical) | Plymouth | 7 | Duxbury |
| Brant Rock Village Post Office (historical) | Brant Rock Village Post Office (historical) | Plymouth | 7 | Duxbury |
| Marshfield Centre Post Office (historical) | Marshfield Centre Post Office (historical) | Plymouth | 59 | Duxbury |
| Marshfield Post Office (historical) | Marshfield Post Office (historical) | Plymouth | 33 | Duxbury |
| North Dunbury Post Office (historical) | North Dunbury Post Office (historical) | Plymouth | 66 | Duxbury |
| Dunbury Post Office (historical) | Dunbury Post Office (historical) | Plymouth | 10 | Duxbury |
| Millbrook Post Office (historical) | Millbrook Post Office (historical) | Plymouth | 43 | Duxbury |
| South Dunbury Post Office (historical) | South Dunbury Post Office (historical) | Plymouth | 10 | Duxbury |
| Sea View Post Office (historical) | Sea View Post Office (historical) | Plymouth | 33 | Scituate |
| Marshfield Hills Post Office (historical) | Marshfield Hills Post Office (historical) | Plymouth | 121 | Scituate |
| Greenbush Post Office (historical) | Greenbush Post Office (historical) | Plymouth | 30 | Scituate |
| Scituate Post Office (historical) | Scituate Post Office (historical) | Plymouth | 0 | Scituate |
| North Marshfield Post Office (historical) | North Marshfield Post Office (historical) | Plymouth | 125 | Cohasset |
| Norwell Post Office (historical) | Norwell Post Office (historical) | Plymouth | 33 | Cohasset |
| North Scituate Post Office (historical) | North Scituate Post Office (historical) | Plymouth | 3 | Cohasset |
| East Boston Post Office (historical) | East Boston Post Office (historical) | Suffolk | 10 | Boston South |
| Back Bay Post Office (historical) | Back Bay Post Office (historical) | Suffolk | 16 | Boston South |
| Roxbury Post Office (historical) | Roxbury Post Office (historical) | Suffolk | 66 | Boston South |
| South Essex Post Office (historical) | South Essex Post Office (historical) | Essex | 16 | Ipswich |
| West Gloucester Post Office (historical) | West Gloucester Post Office (historical) | Essex | 105 | Gloucester |
| Middleton Post Office (historical) | Middleton Post Office (historical) | Essex | 82 | Reading |
| Danvers Centre Post Office (historical) | Danvers Centre Post Office (historical) | Essex | 75 | Salem |
| Danvers Port Post Office (historical) | Danvers Port Post Office (historical) | Essex | 16 | Salem |
| Lynnfield Post Office (historical) | Lynnfield Post Office (historical) | Essex | 138 | Reading |
| Franklin Park Post Office (historical) | Franklin Park Post Office (historical) | Suffolk | 30 | Boston North |
| Saugus Post Office (historical) | Saugus Post Office (historical) | Essex | 26 | Boston North |
| Nanepashemet Post Office (historical) | Nanepashemet Post Office (historical) | Essex | 13 | Marblehead South |
| Clifton Post Office (historical) | Clifton Post Office (historical) | Essex | 43 | Lynn |
| Beach Bluff Post Office (historical) | Beach Bluff Post Office (historical) | Essex | 26 | Lynn |
| Salisbury Post Office (historical) | Salisbury Post Office (historical) | Essex | 30 | Newburyport East |
| Byfield Post Office (historical) | Byfield Post Office (historical) | Essex | 69 | Newburyport West |
| West Newsbury Post Office (historical) | West Newsbury Post Office (historical) | Essex | 112 | Newburyport West |
| Merrimacport Post Office (historical) | Merrimacport Post Office (historical) | Essex | 62 | Newburyport West |
| Amesbury Post Office (historical) | Amesbury Post Office (historical) | Essex | 79 | Newburyport West |
| East Haverhill Post Office (historical) | East Haverhill Post Office (historical) | Essex | 105 | Haverhill |
| Merrimac Post Office (historical) | Merrimac Post Office (historical) | Essex | 89 | Haverhill |
| Bradford Post Office (historical) | Bradford Post Office (historical) | Essex | 82 | Haverhill |
| Rowley Post Office (historical) | Rowley Post Office (historical) | Essex | 52 | Georgetown |
| Georgetown Post Office (historical) | Georgetown Post Office (historical) | Essex | 89 | Georgetown |
| Boxford Post Office (historical) | Boxford Post Office (historical) | Essex | 92 | Georgetown |
| Yarmouth Farms Post Office (historical) | Yarmouth Farms Post Office (historical) | Barnstable | 23 | Dennis |
| Davis Post Office (historical) | Davis Post Office (historical) | Franklin | 1430 | Heath |
| Locks Village Post Office (historical) | Locks Village Post Office (historical) | Franklin | 873 | Millers Falls |
| Farley Post Office (historical) | Farley Post Office (historical) | Franklin | 1260 | Millers Falls |
| Willmansett Post Office (historical) | Willmansett Post Office (historical) | Hampden | 75 | Springfield North |
| Chicopee Falls Post Office (historical) | Chicopee Falls Post Office (historical) | Hampden | 154 | Springfield North |
| Rock Dale Mills Post Office (historical) | Rock Dale Mills Post Office (historical) | Berkshire | 892 | State Line |
| Alander Post Office (historical) | Alander Post Office (historical) | Berkshire | 1660 | Bash Bish Falls |
| Lower Barkerville Post Office (historical) | Lower Barkerville Post Office (historical) | Berkshire | 1030 | Pittsfield West |
| Smithville Post Office (historical) | Smithville Post Office (historical) | Worcester | 663 | Barre |
| South Westminster Post Office (historical) | South Westminster Post Office (historical) | Worcester | 1083 | Gardner |
| Westminster Depot Post Office (historical) | Westminster Depot Post Office (historical) | Worcester | 732 | Gardner |
| Lakeview Post Office (historical) | Lakeview Post Office (historical) | Worcester | 410 | Worcester North |
| Rock Bottom Post Office (historical) | Rock Bottom Post Office (historical) | Middlesex | 187 | Hudson |
| Westvale Post Office (historical) | Westvale Post Office (historical) | Middlesex | 131 | Maynard |
| Warnerville Post Office (historical) | Warnerville Post Office (historical) | Middlesex | 128 | Maynard |
| South Bellingham Post Office (historical) | South Bellingham Post Office (historical) | Norfolk | 210 | Franklin |
| Mount Auburn Post Office (historical) | Mount Auburn Post Office (historical) | Middlesex | 36 | Newton |
| North Westport Post Office (historical) | North Westport Post Office (historical) | Bristol | 148 | Fall River East |
| Marlborough Post Office | Marlborough Post Office | Middlesex | 390 | Marlborough |
| Sherborn Post Office | Sherborn Post Office | Middlesex | 226 | Medfield |
| Winchester Post Office | Winchester Post Office | Middlesex | 20 | Lexington |
| Newton Post Office | Newton Post Office | Middlesex | 148 | Newton |
| Merrimac Mills Post Office (historical) | Merrimac Mills Post Office (historical) | Middlesex | 89 | Lowell |
| Squibnocket Post Office (historical) | Squibnocket Post Office (historical) | Dukes | 59 | Squibnocket |
| Chestnut Hill Post Office | Chestnut Hill Post Office | Suffolk | 161 | Newton |
| Brookline Village Post Office | Brookline Village Post Office | Norfolk | 30 | Boston South |
| Franklin City Post Office | Franklin City Post Office | Norfolk | 236 | Wrentham |
| East Whately Post Office | East Whately Post Office | Franklin | 184 | Mount Toby |
| Shawsheen Post Office | Shawsheen Post Office | Middlesex | 108 | Wilmington |
| Sunderland Post Office | Sunderland Post Office | Franklin | 138 | Mount Toby |
| Acton Post Office | Acton Post Office | Middlesex | 203 | Maynard |
| Air Mail Field Post Office (historical) | Air Mail Field Post Office (historical) | Suffolk | Unknown | |
| Allston Post Office | Allston Post Office | Suffolk | Unknown | |
| Arlington Heights Post Office | Arlington Heights Post Office | Middlesex | 154 | Lexington |
| Arlington Post Office | Arlington Post Office | Middlesex | 59 | Lexington |
| Army Base Post Office (historical) | Army Base Post Office (historical) | Suffolk | Unknown | |
| Army Post Office (historical) | Army Post Office (historical) | Suffolk | Unknown | |
| Ashby Post Office | Ashby Post Office | Middlesex | 879 | Ashby |
| Ashcroft Post Office (historical) | Ashcroft Post Office (historical) | Norfolk | Unknown | |
| Ashland Post Office | Ashland Post Office | Middlesex | 187 | Framingham |
| Astor Post Office | Astor Post Office | Suffolk | 16 | Boston South |
| Auburndale Post Office | Auburndale Post Office | Middlesex | 46 | Newton |
| Avon Post Office | Avon Post Office | Norfolk | 203 | Blue Hills |
| Ayer Post Office | Ayer Post Office | Middlesex | 243 | Ayer |
| Babson Park Post Office | Babson Park Post Office | Suffolk | Unknown | |
| Back Bay Post Office | Back Bay Post Office | Suffolk | 10 | Boston South |
| Bald Hill Post Office (historical) | Bald Hill Post Office (historical) | Norfolk | Unknown | |
| Beach Post Office (historical) | Beach Post Office (historical) | Suffolk | Unknown | |
| Bedford Post Office | Bedford Post Office | Middlesex | 128 | Concord |
| Bedford Springs Post Office (historical) | Bedford Springs Post Office (historical) | Middlesex | Unknown | |
| Beechwood Post Office (historical) | Beechwood Post Office (historical) | Norfolk | Unknown | |
| Bellingham Post Office | Bellingham Post Office | Norfolk | Unknown | |
| Belmont Post Office | Belmont Post Office | Middlesex | Unknown | |
| Bemis Post Office (historical) | Bemis Post Office (historical) | Middlesex | Unknown | |
| Billerica Post Office | Billerica Post Office | Middlesex | Unknown | |
| Blue Hill Post Office (historical) | Blue Hill Post Office (historical) | Norfolk | Unknown | |
| Boston College Post Office | Boston College Post Office | Suffolk | Unknown | |
| Boston Post Office (historical) | Boston Post Office (historical) | Suffolk | 26 | Boston South |
| Boston University Post Office | Boston University Post Office | Suffolk | Unknown | |
| Bowdoin Post Office (historical) | Bowdoin Post Office (historical) | Suffolk | Unknown | |
| Bowdoin Square Post Office (historical) | Bowdoin Square Post Office (historical) | Suffolk | Unknown | |
| Boxborough Post Office (historical) | Boxborough Post Office (historical) | Middlesex | Unknown | |
| Boylston Station Post Office (historical) | Boylston Station Post Office (historical) | Suffolk | Unknown | |
| Braggville Post Office (historical) | Braggville Post Office (historical) | Middlesex | Unknown | |
| Braintree Post Office | Braintree Post Office | Norfolk | 121 | Blue Hills |
| Brighton Post Office | Brighton Post Office | Suffolk | 36 | Newton |
| Brookline Post Office (historical) | Brookline Post Office (historical) | Norfolk | Unknown | |
| Brookville Post Office (historical) | Brookville Post Office (historical) | Norfolk | Unknown | |
| Bumkin Island Post Office (historical) | Bumkin Island Post Office (historical) | Suffolk | Unknown | |
| Burlington Post Office (historical) | Burlington Post Office (historical) | Middlesex | Unknown | |
| Burlington Post Office | Burlington Post Office | Middlesex | 233 | Wilmington |
| Cambridge A Post Office | Cambridge A Post Office | Middlesex | Unknown | |
| Cambridge B Post Office | Cambridge B Post Office | Middlesex | Unknown | |
| Cambridge C Post Office (historical) | Cambridge C Post Office (historical) | Middlesex | Unknown | |
| Cambridge Post Office | Cambridge Post Office | Middlesex | 16 | Boston South |
| Canton Corner Post Office (historical) | Canton Corner Post Office (historical) | Norfolk | Unknown | |
| Canton Junction Post Office (historical) | Canton Junction Post Office (historical) | Norfolk | Unknown | |
| Canton Post Office | Canton Post Office | Norfolk | 108 | Norwood |
| Carlisle Post Office | Carlisle Post Office | Middlesex | 200 | Billerica |
| Cathedral Post Office | Cathedral Post Office | Suffolk | 10 | Boston South |
| Center Post Office | Center Post Office | Middlesex | Unknown | |
| Centralville Post Office (historical) | Centralville Post Office (historical) | Middlesex | Unknown | |
| Charles Street Post Office | Charles Street Post Office | Suffolk | 20 | Boston South |
| Charlestown Post Office (historical) | Charlestown Post Office (historical) | Suffolk | Unknown | |
| Chelmsford Post Office | Chelmsford Post Office | Middlesex | 121 | Billerica |
| Chelsea Post Office | Chelsea Post Office | Suffolk | 20 | Boston North |
| Chestnut Hill Post Office | Chestnut Hill Post Office | Middlesex | Unknown | |
| City Mills Post Office (historical) | City Mills Post Office (historical) | Norfolk | Unknown | |
| Clarendon Hills Post Office | Clarendon Hills Post Office | Norfolk | Unknown | |
| Cleveland Circle Post Office (historical) | Cleveland Circle Post Office (historical) | Suffolk | Unknown | |
| Cochituate Post Office | Cochituate Post Office | Middlesex | 164 | Natick |
| Cohasset Post Office | Cohasset Post Office | Norfolk | Unknown | |
| Coldspring Post Office (historical) | Coldspring Post Office (historical) | Middlesex | Unknown | |
| College Hill Post Office (historical) | College Hill Post Office (historical) | Middlesex | Unknown | |
| Collinsville Post Office (historical) | Collinsville Post Office (historical) | Middlesex | Unknown | |
| Concord Post Office | Concord Post Office | Middlesex | 125 | Concord |
| Copley Square Post Office (historical) | Copley Square Post Office (historical) | Suffolk | Unknown | |
| Cove Landing Post Office (historical) | Cove Landing Post Office (historical) | Middlesex | Unknown | |
| Cummingsville Post Office (historical) | Cummingsville Post Office (historical) | Middlesex | Unknown | |
| Cushing Veterans Administration Hospital Post Office (historical) | Cushing Veterans Administration Hospital Post Office (historical) | Middlesex | Unknown | |
| Davis Post Office (historical) | Davis Post Office (historical) | Middlesex | Unknown | |
| Dedham Post Office | Dedham Post Office | Norfolk | 108 | Norwood |
| Deer Island Post Office (historical) | Deer Island Post Office (historical) | Suffolk | Unknown | |
| Dighton Cross Roads Post Office (historical) | Dighton Cross Roads Post Office (historical) | Norfolk | Unknown | |
| Dorchester Center Post Office | Dorchester Center Post Office | Suffolk | 62 | Boston South |
| Dorchester Post Office (historical) | Dorchester Post Office (historical) | Suffolk | Unknown | |
| Dover Post Office | Dover Post Office | Norfolk | Unknown | |
| Dracut Post Office (historical) | Dracut Post Office (historical) | Middlesex | Unknown | |
| Dracut Post Office | Dracut Post Office | Middlesex | Unknown | |
| Dunstable Post Office | Dunstable Post Office | Middlesex | 187 | Nashua South |
| East Acton Post Office (historical) | East Acton Post Office (historical) | Middlesex | Unknown | |
| East Arlington Post Office | East Arlington Post Office | Middlesex | Unknown | |
| East Billerica Post Office (historical) | East Billerica Post Office (historical) | Middlesex | Unknown | |
| East Boston Post Office | East Boston Post Office | Suffolk | Unknown | |
| East Braintree Post Office (historical) | East Braintree Post Office (historical) | Norfolk | Unknown | |
| East Chelmsford Post Office (historical) | East Chelmsford Post Office (historical) | Middlesex | Unknown | |
| East Dedham Post Office | East Dedham Post Office | Norfolk | Unknown | |
| East Foxboro Post Office (historical) | East Foxboro Post Office (historical) | Norfolk | Unknown | |
| East Holliston Post Office (historical) | East Holliston Post Office (historical) | Middlesex | Unknown | |
| East Lexington Post Office (historical) | East Lexington Post Office (historical) | Middlesex | Unknown | |
| East Milton Post Office | East Milton Post Office | Norfolk | 43 | Boston South |
| East Norfolk Post Office (historical) | East Norfolk Post Office (historical) | Norfolk | Unknown | |
| East Pepperell Post Office | East Pepperell Post Office | Middlesex | Unknown | |
| East River Post Office (historical) | East River Post Office (historical) | Norfolk | Unknown | |
| East Sharon Post Office (historical) | East Sharon Post Office (historical) | Norfolk | Unknown | |
| East Somerville Post Office (historical) | East Somerville Post Office (historical) | Middlesex | Unknown | |
| East Walpole Post Office | East Walpole Post Office | Norfolk | 125 | Norwood |
| East Watertown Post Office | East Watertown Post Office | Middlesex | Unknown | |
| East Weymouth Post Office | East Weymouth Post Office | Norfolk | 43 | Weymouth |
| Edgeworth Post Office (historical) | Edgeworth Post Office (historical) | Middlesex | Unknown | |
| Ellis Post Office (historical) | Ellis Post Office (historical) | Norfolk | Unknown | |
| Embarkation Post Office (historical) | Embarkation Post Office (historical) | Suffolk | Unknown | |
| Endicott Post Office (historical) | Endicott Post Office (historical) | Norfolk | Unknown | |
| Essex Post Office | Essex Post Office | Suffolk | Unknown | |
| Everett Post Office (historical) | Everett Post Office (historical) | Middlesex | 39 | Boston North |
| Faulkner Post Office (historical) | Faulkner Post Office (historical) | Middlesex | Unknown | |
| Federal Reserve Post Office (historical) | Federal Reserve Post Office (historical) | Suffolk | Unknown | |
| Federal Wharf Post Office (historical) | Federal Wharf Post Office (historical) | Suffolk | Unknown | |
| Fells Post Office (historical) | Fells Post Office (historical) | Middlesex | Unknown | |
| Fenway Post Office (historical) | Fenway Post Office (historical) | Suffolk | Unknown | |
| Findlen Post Office (historical) | Findlen Post Office (historical) | Norfolk | Unknown | |
| Fleet Post Office (historical) | Fleet Post Office (historical) | Suffolk | Unknown | |
| Forge Village Post Office | Forge Village Post Office | Middlesex | 200 | Westford |
| Fort Andrews Post Office (historical) | Fort Andrews Post Office (historical) | Suffolk | Unknown | |
| Fort Banks Post Office (historical) | Fort Banks Post Office (historical) | Suffolk | Unknown | |
| Fort Dawes Post Office (historical) | Fort Dawes Post Office (historical) | Suffolk | Unknown | |
| Fort Devens Post Office | Fort Devens Post Office | Middlesex | Unknown | |
| Fort Revere Post Office (historical) | Fort Revere Post Office (historical) | Suffolk | Unknown | |
| Fort Standish Post Office (historical) | Fort Standish Post Office (historical) | Plymouth | Unknown | |
| Fort Strong Post Office (historical) | Fort Strong Post Office (historical) | Suffolk | Unknown | |
| Fort Warren Post Office (historical) | Fort Warren Post Office (historical) | Suffolk | Unknown | |
| Foxboro Post Office | Foxboro Post Office | Norfolk | Unknown | |
| Foxvale Post Office (historical) | Foxvale Post Office (historical) | Norfolk | Unknown | |
| Framingham Center Post Office | Framingham Center Post Office | Middlesex | Unknown | |
| Framingham Post Office (historical) | Framingham Post Office (historical) | Middlesex | Unknown | |
| Framingham Post Office | Framingham Post Office | Middlesex | Unknown | |
| Franklin Post Office | Franklin Post Office | Norfolk | Unknown | |
| Gallups Island Post Office (historical) | Gallups Island Post Office (historical) | Suffolk | Unknown | |
| Gleasondale Post Office (historical) | Gleasondale Post Office (historical) | Middlesex | Unknown | |
| Glenwood Post Office (historical) | Glenwood Post Office (historical) | Middlesex | Unknown | |
| Graniteville Post Office (historical) | Graniteville Post Office (historical) | Middlesex | Unknown | |
| Greenwood Post Office | Greenwood Post Office | Middlesex | 105 | Boston North |
| Groton Post Office | Groton Post Office | Middlesex | 341 | Ayer |
| Grove Hall Post Office | Grove Hall Post Office | Suffolk | Unknown | |
| Hanover Street Post Office | Hanover Street Post Office | Suffolk | 20 | Boston South |
| Harding Post Office (historical) | Harding Post Office (historical) | Norfolk | Unknown | |
| Harrison Square Post Office (historical) | Harrison Square Post Office (historical) | Suffolk | Unknown | |
| Harwood Post Office | Harwood Post Office | Middlesex | Unknown | |
| Hayden Row Post Office (historical) | Hayden Row Post Office (historical) | Middlesex | Unknown | |
| Highlands Post Office | Highlands Post Office | Middlesex | Unknown | |
| Holbrook Grove Post Office (historical) | Holbrook Grove Post Office (historical) | Norfolk | Unknown | |
| Holbrook Post Office | Holbrook Post Office | Norfolk | 131 | Blue Hills |
| Holliston Post Office | Holliston Post Office | Middlesex | Unknown | |
| Hopkinton Post Office | Hopkinton Post Office | Middlesex | 433 | Milford |
| Houghs Neck Post Office (historical) | Houghs Neck Post Office (historical) | Norfolk | Unknown | |
| Hudson Post Office | Hudson Post Office | Middlesex | 233 | Hudson |
| Hyde Park Post Office | Hyde Park Post Office | Norfolk | 62 | Boston South |
| Inman Square Post Office | Inman Square Post Office | Middlesex | 13 | Boston South |
| Islington Post Office | Islington Post Office | Norfolk | 108 | Norwood |
| Jamaica Plain Post Office | Jamaica Plain Post Office | Suffolk | Unknown | |
| Jays Cleaners Post Office (historical) | Jays Cleaners Post Office (historical) | Middlesex | Unknown | |
| John Fitzgerald Kennedy Post Office | John Fitzgerald Kennedy Post Office | Suffolk | 30 | Boston South |
| Kearney Square Post Office (historical) | Kearney Square Post Office (historical) | Middlesex | Unknown | |
| Kendall Green Post Office (historical) | Kendall Green Post Office (historical) | Middlesex | Unknown | |
| Kendall Square Post Office | Kendall Square Post Office | Middlesex | 10 | Boston South |
| Kenmore Post Office (historical) | Kenmore Post Office (historical) | Suffolk | Unknown | |
| Lake Boon Post Office (historical) | Lake Boon Post Office (historical) | Middlesex | Unknown | |
| Lexington Post Office | Lexington Post Office | Middlesex | 213 | Lexington |
| Lincoln Center Post Office | Lincoln Center Post Office | Middlesex | 236 | Concord |
| Lincoln Post Office | Lincoln Post Office | Middlesex | 203 | Concord |
| Linden Post Office (historical) | Linden Post Office (historical) | Middlesex | Unknown | |
| Littleton Common Post Office (historical) | Littleton Common Post Office (historical) | Middlesex | Unknown | |
| Littleton Post Office | Littleton Post Office | Middlesex | 269 | Westford |
| Long Island Hospital Post Office | Long Island Hospital Post Office | Suffolk | Unknown | |
| Longwood Post Office | Longwood Post Office | Norfolk | 49 | Boston South |
| Lowell Post Office (historical) | Lowell Post Office (historical) | Middlesex | 108 | Lowell |
| Malden Post Office | Malden Post Office | Middlesex | 36 | Boston North |
| Maplewood Post Office (historical) | Maplewood Post Office (historical) | Middlesex | Unknown | |
| Massachusetts Institute of Technology Post Office | Massachusetts Institute of Technology Post Office | Suffolk | Unknown | |
| State House Post Office | State House Post Office | Suffolk | 92 | Boston South |
| Mattepan Post Office | Mattepan Post Office | Suffolk | Unknown | |
| Maynard Post Office | Maynard Post Office | Middlesex | 161 | Maynard |
| Medfield Post Office | Medfield Post Office | Norfolk | 184 | Medfield |
| Medford Hillside Post Office (historical) | Medford Hillside Post Office (historical) | Middlesex | Unknown | |
| Medford Post Office | Medford Post Office | Middlesex | 20 | Boston North |
| Medway Post Office | Medway Post Office | Norfolk | Unknown | |
| Melrose Highlands Post Office | Melrose Highlands Post Office | Middlesex | Unknown | |
| Melrose Post Office | Melrose Post Office | Middlesex | 56 | Boston North |
| Metcalf Post Office (historical) | Metcalf Post Office (historical) | Middlesex | Unknown | |
| Middlesex Village Post Office (historical) | Middlesex Village Post Office (historical) | Middlesex | Unknown | |
| Millis Post Office | Millis Post Office | Norfolk | Unknown | |
| Milton Post Office | Milton Post Office | Norfolk | Unknown | |
| Milton Village Post Office | Milton Village Post Office | Norfolk | Unknown | |
| Montrose Post Office (historical) | Montrose Post Office (historical) | Middlesex | Unknown | |
| Montvale Post Office (historical) | Montvale Post Office (historical) | Middlesex | Unknown | |
| Montwait Post Office (historical) | Montwait Post Office (historical) | Middlesex | Unknown | |
| Nabnasset Post Office | Nabnasset Post Office | Middlesex | 190 | Westford |
| Nash Post Office (historical) | Nash Post Office (historical) | Norfolk | Unknown | |
| Nashoba Post Office (historical) | Nashoba Post Office (historical) | Middlesex | Unknown | |
| Natick Post Office | Natick Post Office | Middlesex | Unknown | |
| Naval Air Station South Weymouth Post Office (historical) | Naval Air Station South Weymouth Post Office (historical) | Norfolk | Unknown | |
| Naval Air Station Squantum Post Office (historical) | Naval Air Station Squantum Post Office (historical) | Norfolk | Unknown | |
| Naval Auxillary Air Facility Post Office (historical) | Naval Auxillary Air Facility Post Office (historical) | Middlesex | Unknown | |
| Navy Post Office (historical) | Navy Post Office (historical) | Suffolk | Unknown | |
| Navy Yard Post Office (historical) | Navy Yard Post Office (historical) | Suffolk | Unknown | |
| Naval Training School Post Office (historical) | Naval Training School Post Office (historical) | Suffolk | Unknown | |
| Needham Heights Post Office | Needham Heights Post Office | Norfolk | 180 | Newton |
| Needham Post Office (historical) | Needham Post Office (historical) | Norfolk | 167 | Newton |
| Neponset Post Office (historical) | Neponset Post Office (historical) | Suffolk | Unknown | |
| Newton Lower Falls Post Office | Newton Lower Falls Post Office | Middlesex | Unknown | |
| Newton Center Post Office (historical) | Newton Center Post Office (historical) | Middlesex | 148 | Newton |
| Newton Highlands Post Office | Newton Highlands Post Office | Middlesex | 151 | Newton |
| Newton Upper Falls Post Office | Newton Upper Falls Post Office | Middlesex | Unknown | |
| Newtonville Post Office | Newtonville Post Office | Middlesex | 56 | Newton |
| Night Post Office (historical) | Night Post Office (historical) | Suffolk | Unknown | |
| Nobscot Post Office (historical) | Nobscot Post Office (historical) | Middlesex | Unknown | |
| Nonantum Post Office | Nonantum Post Office | Middlesex | 39 | Newton |
| Norfolk Downs Post Office (historical) | Norfolk Downs Post Office (historical) | Norfolk | Unknown | |
| Norfolk Post Office | Norfolk Post Office | Norfolk | Unknown | |
| North Acton Post Office (historical) | North Acton Post Office (historical) | Middlesex | Unknown | |
| North Bellingham Post Office (historical) | North Bellingham Post Office (historical) | Norfolk | Unknown | |
| North Billerica Post Office | North Billerica Post Office | Middlesex | Unknown | |
| North Brighton Post Office (historical) | North Brighton Post Office (historical) | Suffolk | Unknown | |
| North Chelmsford Post Office | North Chelmsford Post Office | Middlesex | 115 | Nashua South |
| North Cohasset Post Office (historical) | North Cohasset Post Office (historical) | Norfolk | Unknown | |
| North Foxboro Post Office (historical) | North Foxboro Post Office (historical) | Norfolk | Unknown | |
| North Lexington Post Office (historical) | North Lexington Post Office (historical) | Middlesex | Unknown | |
| North Natick Post Office (historical) | North Natick Post Office (historical) | Middlesex | Unknown | |
| North Postal Annex Post Office (historical) | North Postal Annex Post Office (historical) | Suffolk | Unknown | |
| North Quincy Post Office | North Quincy Post Office | Norfolk | 20 | Boston South |
| North Randolph Post Office (historical) | North Randolph Post Office (historical) | Norfolk | Unknown | |
| North Reading Post Office | North Reading Post Office | Middlesex | Unknown | |
| North Stoughton Post Office (historical) | North Stoughton Post Office (historical) | Norfolk | Unknown | |
| North Sudbury Post Office (historical) | North Sudbury Post Office (historical) | Middlesex | Unknown | |
| North Terminal Post Office (historical) | North Terminal Post Office (historical) | Suffolk | Unknown | |
| North Tewksbury Post Office (historical) | North Tewksbury Post Office (historical) | Middlesex | Unknown | |
| North Waltham Post Office | North Waltham Post Office | Middlesex | 180 | Lexington |
| North Weymouth Post Office | North Weymouth Post Office | Norfolk | 26 | Weymouth |
| North Wilmington Post Office | North Wilmington Post Office | Middlesex | Unknown | |
| North Woburn Post Office (historical) | North Woburn Post Office (historical) | Middlesex | Unknown | |
| Norwood Post Office | Norwood Post Office | Norfolk | 135 | Norwood |
| Nutting Lake Post Office | Nutting Lake Post Office | Middlesex | Unknown | |
| Overbrook Post Office (historical) | Overbrook Post Office (historical) | Norfolk | Unknown | |
| Paugus Post Office (historical) | Paugus Post Office (historical) | Middlesex | Unknown | |
| Pawtucket Bridge Post Office (historical) | Pawtucket Bridge Post Office (historical) | Middlesex | Unknown | |
| Pepperell Depot Post Office (historical) | Pepperell Depot Post Office (historical) | Middlesex | Unknown | |
| Pepperell Post Office | Pepperell Post Office | Middlesex | 226 | Pepperell |
| Pinehurst Post Office | Pinehurst Post Office | Middlesex | Unknown | |
| Plainville Post Office | Plainville Post Office | Norfolk | 213 | Wrentham |
| Point of Pines Post Office (historical) | Point of Pines Post Office (historical) | Suffolk | Unknown | |
| Ponkapog Post Office (historical) | Ponkapog Post Office (historical) | Norfolk | Unknown | |
| Port Director Post Office (historical) | Port Director Post Office (historical) | Suffolk | Unknown | |
| Porter Post Office (historical) | Porter Post Office (historical) | Norfolk | Unknown | |
| Prison Station Post Office (historical) | Prison Station Post Office (historical) | Middlesex | Unknown | |
| Prudential Center Post Office | Prudential Center Post Office | Suffolk | 20 | Boston South |
| Quincy Point Post Office (historical) | Quincy Point Post Office (historical) | Norfolk | Unknown | |
| Quincy Post Office | Quincy Post Office | Norfolk | 30 | Boston South |
| Radio Post Office (historical) | Radio Post Office (historical) | Suffolk | Unknown | |
| Randolph Post Office | Randolph Post Office | Norfolk | 200 | Blue Hills |
| Reading Post Office | Reading Post Office | Middlesex | 125 | Reading |
| Readville Post Office | Readville Post Office | Suffolk | 62 | Norwood |
| Revere Post Office | Revere Post Office | Suffolk | 23 | Boston North |
| Rockville Post Office (historical) | Rockville Post Office (historical) | Norfolk | Unknown | |
| Rogers Square Post Office (historical) | Rogers Square Post Office (historical) | Middlesex | Unknown | |
| Roslindale Post Office (historical) | Roslindale Post Office (historical) | Suffolk | Unknown | |
| Roxbury Crossing Post Office | Roxbury Crossing Post Office | Suffolk | Unknown | |
| Roxbury Post Office | Roxbury Post Office | Suffolk | Unknown | |
| Saxonville Post Office | Saxonville Post Office | Middlesex | Unknown | |
| Sharon Heights Post Office (historical) | Sharon Heights Post Office (historical) | Norfolk | Unknown | |
| Sharon Post Office | Sharon Post Office | Norfolk | 295 | Mansfield |
| Sheldonville Post Office | Sheldonville Post Office | Norfolk | Unknown | |
| Shirley Post Office | Shirley Post Office | Middlesex | 305 | Shirley |
| Shirley Center Post Office (historical) | Shirley Center Post Office (historical) | Middlesex | Unknown | |
| Soldiers Field Post Office | Soldiers Field Post Office | Suffolk | Unknown | |
| Somerset Hill Post Office (historical) | Somerset Hill Post Office (historical) | Suffolk | Unknown | |
| Somerville Post Office | Somerville Post Office | Middlesex | 26 | Boston North |
| South Acton Post Office (historical) | South Acton Post Office (historical) | Middlesex | Unknown | |
| South Billerica Post Office (historical) | South Billerica Post Office (historical) | Middlesex | Unknown | |
| South Boston Post Office | South Boston Post Office | Suffolk | 39 | Boston South |
| South Braintree Post Office (historical) | South Braintree Post Office (historical) | Norfolk | Unknown | |
| South Chelmsford Post Office | South Chelmsford Post Office | Middlesex | Unknown | |
| South Natick Post Office (historical) | South Natick Post Office (historical) | Middlesex | Unknown | |
| South Postal Annex Post Office | South Postal Annex Post Office | Suffolk | Unknown | |
| South Quincy Post Office (historical) | South Quincy Post Office (historical) | Norfolk | Unknown | |
| South Sherborn Post Office (historical) | South Sherborn Post Office (historical) | Middlesex | Unknown | |
| South Terminal Post Office (historical) | South Terminal Post Office (historical) | Suffolk | Unknown | |
| South Walpole Post Office | South Walpole Post Office | Norfolk | Unknown | |
| South Waltham Post Office | South Waltham Post Office | Middlesex | Unknown | |
| South Weymouth Post Office | South Weymouth Post Office | Norfolk | 187 | Weymouth |
| South Wrentham Post Office (historical) | South Wrentham Post Office (historical) | Norfolk | Unknown | |
| Squantam Post Office | Squantam Post Office | Norfolk | Unknown | |
| Stoneham Post Office | Stoneham Post Office | Middlesex | 148 | Boston North |
| Stoneybrook Post Office (historical) | Stoneybrook Post Office (historical) | Middlesex | Unknown | |
| Stow Post Office | Stow Post Office | Middlesex | 200 | Hudson |
| Sudbury Post Office (historical) | Sudbury Post Office (historical) | Middlesex | Unknown | |
| Sudbury Post Office | Sudbury Post Office | Middlesex | Unknown | |
| Terminal Post Office (historical) | Terminal Post Office (historical) | Suffolk | Unknown | |
| Tewksbury Post Office | Tewksbury Post Office | Middlesex | 95 | Wilmington |
| Townsend Harbor Post Office (historical) | Townsend Harbor Post Office (historical) | Middlesex | Unknown | |
| Townsend Post Office | Townsend Post Office | Middlesex | 295 | Townsend |
| Tremont Post Office | Tremont Post Office | Suffolk | Unknown | |
| Tufts University Post Office | Tufts University Post Office | Middlesex | Unknown | |
| Tyngsboro Post Office | Tyngsboro Post Office | Middlesex | 118 | Nashua South |
| Unionville Post Office (historical) | Unionville Post Office (historical) | Norfolk | Unknown | |
| United State Naval Hospital Post Office (historical) | United State Naval Hospital Post Office (historical) | Suffolk | Unknown | |
| United States Public Health Service Post Office (historical) | United States Public Health Service Post Office (historical) | Suffolk | Unknown | |
| United States Receiving Ship Post Office (historical) | United States Receiving Ship Post Office (historical) | Suffolk | Unknown | |
| Uphams Corner Post Office | Uphams Corner Post Office | Suffolk | Unknown | |
| Veterans Administration Hospital Post Office | Veterans Administration Hospital Post Office | Middlesex | 141 | Billerica |
| Village of Nagog Woods Post Office | Village of Nagog Woods Post Office | Middlesex | Unknown | |
| Village Post Office | Village Post Office | Norfolk | Unknown | |
| Waban Post Office | Waban Post Office | Middlesex | Unknown | |
| Wadsworth Post Office (historical) | Wadsworth Post Office (historical) | Norfolk | Unknown | |
| Wakefield Post Office | Wakefield Post Office | Middlesex | 112 | Reading |
| Walpole Post Office (historical) | Walpole Post Office (historical) | Norfolk | 157 | Medfield |
| Waltham Post Office | Waltham Post Office | Middlesex | 66 | Lexington |
| Wamesit Post Office (historical) | Wamesit Post Office (historical) | Middlesex | Unknown | |
| Washington Square Post Office (historical) | Washington Square Post Office (historical) | Norfolk | Unknown | |
| Watertown Post Office | Watertown Post Office | Middlesex | Unknown | |
| Waverley Post Office | Waverley Post Office | Middlesex | Unknown | |
| Wayland Post Office | Wayland Post Office | Middlesex | Unknown | |
| Wellesley Farms Post Office (historical) | Wellesley Farms Post Office (historical) | Norfolk | Unknown | |
| Wellesley Hills Post Office | Wellesley Hills Post Office | Norfolk | 148 | Natick |
| Wellesley Post Office | Wellesley Post Office | Norfolk | 135 | Natick |
| Wellington Post Office (historical) | Wellington Post Office (historical) | Middlesex | Unknown | |
| West Acton Post Office | West Acton Post Office | Middlesex | 230 | Maynard |
| West Chelmsford Post Office (historical) | West Chelmsford Post Office (historical) | Middlesex | Unknown | |
| West Concord Post Office (historical) | West Concord Post Office (historical) | Middlesex | Unknown | |
| West Dracut Post Office (historical) | West Dracut Post Office (historical) | Middlesex | Unknown | |
| West Foxboro Post Office (historical) | West Foxboro Post Office (historical) | Norfolk | Unknown | |
| West Groton Post Office | West Groton Post Office | Middlesex | 236 | Shirley |
| West Littleton Post Office (historical) | West Littleton Post Office (historical) | Middlesex | Unknown | |
| West Medford Post Office | West Medford Post Office | Middlesex | Unknown | |
| West Medway Post Office (historical) | West Medway Post Office (historical) | Norfolk | Unknown | |
| West Newton Post Office | West Newton Post Office | Middlesex | Unknown | |
| West Quincy Post Office (historical) | West Quincy Post Office (historical) | Norfolk | Unknown | |
| West Roxbury Post Office | West Roxbury Post Office | Suffolk | 148 | Newton |
| West Somerville Post Office (historical) | West Somerville Post Office (historical) | Middlesex | Unknown | |
| West Stoughton Post Office (historical) | West Stoughton Post Office (historical) | Norfolk | Unknown | |
| West Townsend Post Office | West Townsend Post Office | Middlesex | Unknown | |
| West Wrentham Post Office (historical) | West Wrentham Post Office (historical) | Norfolk | Unknown | |
| Westford Post Office | Westford Post Office | Middlesex | Unknown | |
| Weston Post Office | Weston Post Office | Middlesex | Unknown | |
| Westwood Post Office | Westwood Post Office | Norfolk | Unknown | |
| Weymouth Center Post Office (historical) | Weymouth Center Post Office (historical) | Norfolk | Unknown | |
| Weymouth Heights Post Office (historical) | Weymouth Heights Post Office (historical) | Norfolk | Unknown | |
| Weymouth Post Office | Weymouth Post Office | Norfolk | Unknown | |
| Wilmington Post Office | Wilmington Post Office | Middlesex | 89 | Wilmington |
| Winter Hill Post Office (historical) | Winter Hill Post Office (historical) | Middlesex | Unknown | |
| Winthrop Post Office | Winthrop Post Office | Suffolk | 36 | Lynn |
| Woburn Post Office | Woburn Post Office | Middlesex | 89 | Lexington |
| Wollaston Post Office | Wollaston Post Office | Norfolk | Unknown | |
| Wrentham Post Office | Wrentham Post Office | Norfolk | Unknown | |
| Nantucket Branch Post Office | Nantucket Branch Post Office | Nantucket | 20 | Nantucket |
| Nantucket Post Office | Nantucket Post Office | Nantucket | 10 | Nantucket |
| Chilmark Post Office | Chilmark Post Office | Dukes | 85 | Squibnocket |
| Edgartown Post Office | Edgartown Post Office | Dukes | 7 | Edgartown |
| Oak Bluffs Post Office | Oak Bluffs Post Office | Dukes | Unknown | |
| Vineyard Haven Post Office | Vineyard Haven Post Office | Dukes | 26 | Vineyard Haven |
| West Tisbury Post Office | West Tisbury Post Office | Dukes | 30 | Vineyard Haven |
| Bass River Post Office (historical) | Bass River Post Office (historical) | Barnstable | Unknown | |
| Bourne Post Office (historical) | Bourne Post Office (historical) | Barnstable | Unknown | |
| Bournedale Post Office (historical) | Bournedale Post Office (historical) | Barnstable | Unknown | |
| Chatham Port Post Office (historical) | Chatham Port Post Office (historical) | Barnstable | Unknown | |
| Cotuit Post Office (historical) | Cotuit Post Office (historical) | Barnstable | Unknown | |
| Craigville Post Office (historical) | Craigville Post Office (historical) | Barnstable | Unknown | |
| East Brewster Post Office (historical) | East Brewster Post Office (historical) | Barnstable | Unknown | |
| East Falmouth Post Office (historical) | East Falmouth Post Office (historical) | Barnstable | Unknown | |
| East Harwich Post Office (historical) | East Harwich Post Office (historical) | Barnstable | Unknown | |
| East Sandwich Post Office (historical) | East Sandwich Post Office (historical) | Barnstable | Unknown | |
| Falmouth Heights Post Office (historical) | Falmouth Heights Post Office (historical) | Barnstable | Unknown | |
| Hatchville Post Office (historical) | Hatchville Post Office (historical) | Barnstable | Unknown | |
| Megansville Post Office (historical) | Megansville Post Office (historical) | Barnstable | Unknown | |
| Menauhaut Post Office (historical) | Menauhaut Post Office (historical) | Barnstable | Unknown | |
| Naval Auxiliary Air Facility Post Office (historical) | Naval Auxiliary Air Facility Post Office (historical) | Barnstable | Unknown | |
| New Seabury Post Office (historical) | New Seabury Post Office (historical) | Barnstable | Unknown | |
| North Brewster Post Office (historical) | North Brewster Post Office (historical) | Barnstable | Unknown | |
| North Harwich Post Office (historical) | North Harwich Post Office (historical) | Barnstable | Unknown | |
| Otis Air Force Base Post Office (historical) | Otis Air Force Base Post Office (historical) | Barnstable | Unknown | |
| Pleasant Lake Post Office (historical) | Pleasant Lake Post Office (historical) | Barnstable | Unknown | |
| Popponessett Beach Post Office (historical) | Popponessett Beach Post Office (historical) | Barnstable | Unknown | |
| Quissett Post Office (historical) | Quissett Post Office (historical) | Barnstable | Unknown | |
| Santuit Post Office (historical) | Santuit Post Office (historical) | Barnstable | Unknown | |
| Section Base Post Office (historical) | Section Base Post Office (historical) | Barnstable | Unknown | |
| South Brewster Post Office (historical) | South Brewster Post Office (historical) | Barnstable | Unknown | |
| South Hyannis Post Office (historical) | South Hyannis Post Office (historical) | Barnstable | Unknown | |
| South Sandwich Post Office (historical) | South Sandwich Post Office (historical) | Barnstable | Unknown | |
| South Truro Post Office (historical) | South Truro Post Office (historical) | Barnstable | Unknown | |
| Waquoit Post Office (historical) | Waquoit Post Office (historical) | Barnstable | Unknown | |
| West Brewster Post Office (historical) | West Brewster Post Office (historical) | Barnstable | Unknown | |
| West Yarmouth Post Office (historical) | West Yarmouth Post Office (historical) | Barnstable | Unknown | |
| Wianno Post Office (historical) | Wianno Post Office (historical) | Barnstable | Unknown | |
| Yarmouth Post Office (historical) | Yarmouth Post Office (historical) | Barnstable | Unknown | |
| Alandar Post Office (historical) | Alandar Post Office (historical) | Berkshire | Unknown | |
| Alford Post Office (historical) | Alford Post Office (historical) | Berkshire | Unknown | |
| Balence Rock Post Office (historical) | Balence Rock Post Office (historical) | Berkshire | Unknown | |
| Becket Center Post Office (historical) | Becket Center Post Office (historical) | Berkshire | Unknown | |
| Blackington Post Office (historical) | Blackington Post Office (historical) | Berkshire | Unknown | |
| Boston Corner Post Office (historical) | Boston Corner Post Office (historical) | Berkshire | Unknown | |
| Brier Post Office (historical) | Brier Post Office (historical) | Berkshire | Unknown | |
| Camp Merrill Post Office (historical) | Camp Merrill Post Office (historical) | Berkshire | Unknown | |
| Clarksburg Post Office (historical) | Clarksburg Post Office (historical) | Berkshire | Unknown | |
| Clayton Post Office (historical) | Clayton Post Office (historical) | Berkshire | Unknown | |
| Cold Spring Post Office (historical) | Cold Spring Post Office (historical) | Berkshire | Unknown | |
| Coltsville Post Office (historical) | Coltsville Post Office (historical) | Berkshire | Unknown | |
| East Lee Post Office (historical) | East Lee Post Office (historical) | Berkshire | Unknown | |
| East Windsor Post Office (historical) | East Windsor Post Office (historical) | Berkshire | Unknown | |
| Egremont Plain Post Office (historical) | Egremont Plain Post Office (historical) | Berkshire | Unknown | |
| Florida Post Office (historical) | Florida Post Office (historical) | Berkshire | Unknown | |
| Farnams Post Office (historical) | Farnams Post Office (historical) | Berkshire | Unknown | |
| Greenleaf Post Office (historical) | Greenleaf Post Office (historical) | Berkshire | Unknown | |
| Hancock Post Office (historical) | Hancock Post Office (historical) | Berkshire | Unknown | |
| Hartsville Post Office (historical) | Hartsville Post Office (historical) | Berkshire | Unknown | |
| Hinsdale Post Office (historical) | Hinsdale Post Office (historical) | Berkshire | Unknown | |
| Hoosac Tunnel Post Office (historical) | Hoosac Tunnel Post Office (historical) | Berkshire | Unknown | |
| Montville Post Office (historical) | Montville Post Office (historical) | Berkshire | Unknown | |
| Mount Washington Post Office (historical) | Mount Washington Post Office (historical) | Berkshire | Unknown | |
| New Ashford Post Office (historical) | New Ashford Post Office (historical) | Berkshire | Unknown | |
| New Lenox Post Office (historical) | New Lenox Post Office (historical) | Berkshire | Unknown | |
| New Marlboro Post Office (historical) | New Marlboro Post Office (historical) | Berkshire | Unknown | |
| Newstate Post Office (historical) | Newstate Post Office (historical) | Berkshire | Unknown | |
| North Sheffield Post Office (historical) | North Sheffield Post Office (historical) | Berkshire | Unknown | |
| Peru Post Office (historical) | Peru Post Office (historical) | Berkshire | Unknown | |
| Plunkett Post Office (historical) | Plunkett Post Office (historical) | Berkshire | Unknown | |
| Pontoosuc Post Office (historical) | Pontoosuc Post Office (historical) | Berkshire | Unknown | |
| Richmond Furnace Post Office (historical) | Richmond Furnace Post Office (historical) | Berkshire | Unknown | |
| Rockdale Mills Post Office (historical) | Rockdale Mills Post Office (historical) | Berkshire | Unknown | |
| Sandisfield Post Office (historical) | Sandisfield Post Office (historical) | Berkshire | Unknown | |
| Savoy Center Post Office (historical) | Savoy Center Post Office (historical) | Berkshire | Unknown | |
| South New Marlboro Post Office (historical) | South New Marlboro Post Office (historical) | Berkshire | Unknown | |
| South Sandisfield Post Office (historical) | South Sandisfield Post Office (historical) | Berkshire | Unknown | |
| South Williamstown Post Office (historical) | South Williamstown Post Office (historical) | Berkshire | Unknown | |
| Staffords Hill Post Office (historical) | Staffords Hill Post Office (historical) | Berkshire | Unknown | |
| State Line Post Office (historical) | State Line Post Office (historical) | Berkshire | Unknown | |
| Stearnsville Post Office (historical) | Stearnsville Post Office (historical) | Berkshire | Unknown | |
| Sweet Corners Post Office (historical) | Sweet Corners Post Office (historical) | Berkshire | Unknown | |
| Tyringham Post Office (historical) | Tyringham Post Office (historical) | Berkshire | Unknown | |
| Van Deusen Post Office (historical) | Van Deusen Post Office (historical) | Berkshire | Unknown | |
| Washington Post Office (historical) | Washington Post Office (historical) | Berkshire | Unknown | |
| West Becket Post Office (historical) | West Becket Post Office (historical) | Berkshire | Unknown | |
| West Otis Post Office (historical) | West Otis Post Office (historical) | Berkshire | Unknown | |
| West Pittsfield Post Office (historical) | West Pittsfield Post Office (historical) | Berkshire | Unknown | |
| West Stockbridge Post Office (historical) | West Stockbridge Post Office (historical) | Berkshire | Unknown | |
| Williamstown Station Post Office (historical) | Williamstown Station Post Office (historical) | Berkshire | Unknown | |
| Zylonite Post Office (historical) | Zylonite Post Office (historical) | Berkshire | Unknown | |
| Acushnet Post Office (historical) | Acushnet Post Office (historical) | Bristol | Unknown | |
| Apponegansett Post Office (historical) | Apponegansett Post Office (historical) | Bristol | Unknown | |
| Adamsdale Post Office (historical) | Adamsdale Post Office (historical) | Bristol | Unknown | |
| Assonet Post Office (historical) | Assonet Post Office (historical) | Bristol | Unknown | |
| Barrowsville Post Office (historical) | Barrowsville Post Office (historical) | Bristol | Unknown | |
| Berkley Post Office (historical) | Berkley Post Office (historical) | Bristol | Unknown | |
| Briggs Corner Post Office (historical) | Briggs Corner Post Office (historical) | Bristol | Unknown | |
| Brittania Post Office (historical) | Brittania Post Office (historical) | Bristol | Unknown | |
| Camp Miles Standish Post Office (historical) | Camp Miles Standish Post Office (historical) | Bristol | Unknown | |
| Clifford Post Office (historical) | Clifford Post Office (historical) | Bristol | Unknown | |
| Dodgeville Post Office (historical) | Dodgeville Post Office (historical) | Bristol | Unknown | |
| East Norton Post Office (historical) | East Norton Post Office (historical) | Bristol | Unknown | |
| Easton Four Corners Post Office (historical) | Easton Four Corners Post Office (historical) | Bristol | Unknown | |
| Easton Center Post Office (historical) | Easton Center Post Office (historical) | Bristol | Unknown | |
| Eastondale Post Office (historical) | Eastondale Post Office (historical) | Bristol | Unknown | |
| Harris Post Office (historical) | Harris Post Office (historical) | Bristol | Unknown | |
| Hicksville Post Office (historical) | Hicksville Post Office (historical) | Bristol | Unknown | |
| Hixville Post Office (historical) | Hixville Post Office (historical) | Bristol | Unknown | |
| Hortonville Post Office (historical) | Hortonville Post Office (historical) | Bristol | Unknown | |
| Judson Post Office (historical) | Judson Post Office (historical) | Bristol | Unknown | |
| Long Plain Post Office (historical) | Long Plain Post Office (historical) | Bristol | Unknown | |
| Meadowbrook Post Office (historical) | Meadowbrook Post Office (historical) | Bristol | Unknown | |
| Myricks Post Office (historical) | Myricks Post Office (historical) | Bristol | Unknown | |
| North Attleboro Post Office (historical) | North Attleboro Post Office (historical) | Bristol | Unknown | |
| North Rehoboth Post Office (historical) | North Rehoboth Post Office (historical) | Bristol | Unknown | |
| North Swansea Post Office (historical) | North Swansea Post Office (historical) | Bristol | Unknown | |
| Oakland Post Office (historical) | Oakland Post Office (historical) | Bristol | Unknown | |
| Ocean Grove Post Office (historical) | Ocean Grove Post Office (historical) | Bristol | Unknown | |
| Oldtown Post Office (historical) | Oldtown Post Office (historical) | Bristol | Unknown | |
| Shawmut Post Office (historical) | Shawmut Post Office (historical) | Bristol | Unknown | |
| Somerset Center Post Office (historical) | Somerset Center Post Office (historical) | Bristol | Unknown | |
| South Rehoboth Post Office (historical) | South Rehoboth Post Office (historical) | Bristol | Unknown | |
| South Seekonk Post Office (historical) | South Seekonk Post Office (historical) | Bristol | Unknown | |
| South Swansea Post Office (historical) | South Swansea Post Office (historical) | Bristol | Unknown | |
| Steep Brook Post Office (historical) | Steep Brook Post Office (historical) | Bristol | Unknown | |
| Swansea Centre Post Office (historical) | Swansea Centre Post Office (historical) | Bristol | Unknown | |
| Thwaits Post Office (historical) | Thwaits Post Office (historical) | Bristol | Unknown | |
| Troy Post Office (historical) | Troy Post Office (historical) | Bristol | Unknown | |
| Walker Post Office (historical) | Walker Post Office (historical) | Bristol | Unknown | |
| West Dighton Post Office (historical) | West Dighton Post Office (historical) | Bristol | Unknown | |
| West Mansfield Post Office (historical) | West Mansfield Post Office (historical) | Bristol | Unknown | |
| Westport Factory Post Office (historical) | Westport Factory Post Office (historical) | Bristol | Unknown | |
| West Somerset Post Office (historical) | West Somerset Post Office (historical) | Bristol | Unknown | |
| Chappiquiddic Post Office (historical) | Chappiquiddic Post Office (historical) | Dukes | Unknown | |
| Chilmark Post Office (historical) | Chilmark Post Office (historical) | Dukes | Unknown | |
| Marthas Vineyard Naval Auxiliary Air Facility Post Office | Marthas Vineyard Naval Auxiliary Air Facility Post Office | Dukes | Unknown | |
| Pasque Island Post Office (historical) | Pasque Island Post Office (historical) | Dukes | Unknown | |
| Penikese Post Office (historical) | Penikese Post Office (historical) | Dukes | Unknown | |
| Tarpaulin Cove Post Office (historical) | Tarpaulin Cove Post Office (historical) | Dukes | Unknown | |
| Annisquam Post Office (historical) | Annisquam Post Office (historical) | Essex | Unknown | |
| Artichoke Post Office (historical) | Artichoke Post Office (historical) | Essex | Unknown | |
| Asbury Grove Post Office (historical) | Asbury Grove Post Office (historical) | Essex | Unknown | |
| Attitash Post Office (historical) | Attitash Post Office (historical) | Essex | Unknown | |
| Ayers Village Post Office (historical) | Ayers Village Post Office (historical) | Essex | Unknown | |
| Bakers Island Post Office (historical) | Bakers Island Post Office (historical) | Essex | Unknown | |
| Bay View Post Office (historical) | Bay View Post Office (historical) | Essex | Unknown | |
| Belleviewport Post Office (historical) | Belleviewport Post Office (historical) | Essex | Unknown | |
| Boxford Post Office | Boxford Post Office | Essex | Unknown | |
| Cliftondale Post Office (historical) | Cliftondale Post Office (historical) | Essex | Unknown | |
| Danversport Post Office (historical) | Danversport Post Office (historical) | Essex | Unknown | |
| East Boxford Post Office (historical) | East Boxford Post Office (historical) | Essex | Unknown | |
| East Gloucester Post Office (historical) | East Gloucester Post Office (historical) | Essex | Unknown | |
| Fort Ruckman Post Office (historical) | Fort Ruckman Post Office (historical) | Essex | Unknown | |
| Hills Post Office (historical) | Hills Post Office (historical) | Essex | Unknown | |
| Little Neck Post Office (historical) | Little Neck Post Office (historical) | Essex | Unknown | |
| Marblehead Station A Post Office (historical) | Marblehead Station A Post Office (historical) | Essex | Unknown | |
| Millwood Post Office (historical) | Millwood Post Office (historical) | Essex | Unknown | |
| Newbury Post Office (historical) | Newbury Post Office (historical) | Essex | Unknown | |
| North Andover Depot Post Office (historical) | North Andover Depot Post Office (historical) | Essex | Unknown | |
| North Beverly Post Office (historical) | North Beverly Post Office (historical) | Essex | Unknown | |
| Plaza Post Office (historical) | Plaza Post Office (historical) | Essex | Unknown | |
| Plum Island Post Office (historical) | Plum Island Post Office (historical) | Essex | Unknown | |
| Riverdale Post Office (historical) | Riverdale Post Office (historical) | Essex | Unknown | |
| Salisbury Beach Post Office (historical) | Salisbury Beach Post Office (historical) | Essex | Unknown | |
| Saunders Hills Post Office (historical) | Saunders Hills Post Office (historical) | Essex | Unknown | |
| South Byfield Post Office (historical) | South Byfield Post Office (historical) | Essex | Unknown | |
| South Groveland Post Office (historical) | South Groveland Post Office (historical) | Essex | Unknown | |
| South Middleton Post Office (historical) | South Middleton Post Office (historical) | Essex | Unknown | |
| South Peabody Post Office (historical) | South Peabody Post Office (historical) | Essex | Unknown | |
| Tapleyville Post Office (historical) | Tapleyville Post Office (historical) | Essex | Unknown | |
| Adamsville Post Office (historical) | Adamsville Post Office (historical) | Franklin | Unknown | |
| Bardwells Ferry Post Office (historical) | Bardwells Ferry Post Office (historical) | Franklin | Unknown | |
| Colrain Post Office (historical) | Colrain Post Office (historical) | Franklin | Unknown | |
| Cooleyville Post Office (historical) | Cooleyville Post Office (historical) | Franklin | Unknown | |
| Cyrus Post Office (historical) | Cyrus Post Office (historical) | Franklin | Unknown | |
| Dell Post Office (historical) | Dell Post Office (historical) | Franklin | Unknown | |
| East Charlemont Post Office (historical) | East Charlemont Post Office (historical) | Franklin | Unknown | |
| East Deerfield Post Office (historical) | East Deerfield Post Office (historical) | Franklin | Unknown | |
| East Leverett Post Office (historical) | East Leverett Post Office (historical) | Franklin | Unknown | |
| East Northfield Post Office (historical) | East Northfield Post Office (historical) | Franklin | Unknown | |
| East Shelburne Post Office (historical) | East Shelburne Post Office (historical) | Franklin | Unknown | |
| Whatley Post Office | Whatley Post Office | Franklin | 279 | Williamsburg |
| Elm Grove Post Office (historical) | Elm Grove Post Office (historical) | Franklin | Unknown | |
| Factory Village Post Office (historical) | Factory Village Post Office (historical) | Franklin | Unknown | |
| Gill Post Office (historical) | Gill Post Office (historical) | Franklin | Unknown | |
| Hawley Post Office (historical) | Hawley Post Office (historical) | Franklin | Unknown | |
| Hillsboro Post Office (historical) | Hillsboro Post Office (historical) | Franklin | Unknown | |
| Leyden Post Office (historical) | Leyden Post Office (historical) | Franklin | Unknown | |
| Line Post Office (historical) | Line Post Office (historical) | Franklin | Unknown | |
| Millington Post Office (historical) | Millington Post Office (historical) | Franklin | Unknown | |
| Monroe Post Office (historical) | Monroe Post Office (historical) | Franklin | Unknown | |
| Montague City Post Office (historical) | Montague City Post Office (historical) | Franklin | Unknown | |
| Moores Corner Post Office (historical) | Moores Corner Post Office (historical) | Franklin | Unknown | |
| North Bernardston Post Office (historical) | North Bernardston Post Office (historical) | Franklin | Unknown | |
| Northfield Farms Post Office (historical) | Northfield Farms Post Office (historical) | Franklin | Unknown | |
| North Heath Post Office (historical) | North Heath Post Office (historical) | Franklin | Unknown | |
| North Leverett Post Office (historical) | North Leverett Post Office (historical) | Franklin | Unknown | |
| North New Salem Post Office (historical) | North New Salem Post Office (historical) | Franklin | Unknown | |
| Orange Post Office | Orange Post Office | Franklin | 515 | Orange |
| North Sutherland Post Office (historical) | North Sutherland Post Office (historical) | Franklin | Unknown | |
| Riverside Post Office (historical) | Riverside Post Office (historical) | Franklin | Unknown | |
| Shelburne Post Office (historical) | Shelburne Post Office (historical) | Franklin | Unknown | |
| South Ashfield Post Office (historical) | South Ashfield Post Office (historical) | Franklin | Unknown | |
| South Hawley Post Office (historical) | South Hawley Post Office (historical) | Franklin | Unknown | |
| West Northfield Post Office | West Northfield Post Office | Franklin | 289 | Northfield |
| South Warwick Post Office (historical) | South Warwick Post Office (historical) | Franklin | Unknown | |
| Spruce Corner Post Office (historical) | Spruce Corner Post Office (historical) | Franklin | Unknown | |
| Tully Post Office (historical) | Tully Post Office (historical) | Franklin | Unknown | |
| Warwick Post Office (historical) | Warwick Post Office (historical) | Franklin | Unknown | |
| Watson Post Office (historical) | Watson Post Office (historical) | Franklin | Unknown | |
| West Deerfield Post Office (historical) | West Deerfield Post Office (historical) | Franklin | Unknown | |
| West Hawley Post Office (historical) | West Hawley Post Office (historical) | Franklin | Unknown | |
| West Leyden Post Office (historical) | West Leyden Post Office (historical) | Franklin | Unknown | |
| West Whatley Post Office (historical) | West Whatley Post Office (historical) | Franklin | Unknown | |
| Zoar Post Office (historical) | Zoar Post Office (historical) | Franklin | Unknown | |
| Ashleyville Post Office (historical) | Ashleyville Post Office (historical) | Hampden | Unknown | |
| Chester Centre Post Office (historical) | Chester Centre Post Office (historical) | Hampden | Unknown | |
| East Brimfield Post Office (historical) | East Brimfield Post Office (historical) | Hampden | Unknown | |
| Fairview Post Office (historical) | Fairview Post Office (historical) | Hampden | Unknown | |
| Granville Post Office (historical) | Granville Post Office (historical) | Hampden | Unknown | |
| Granville Center Post Office (historical) | Granville Center Post Office (historical) | Hampden | Unknown | |
| Holland Post Office (historical) | Holland Post Office (historical) | Hampden | Unknown | |
| Holyoke Station A Post Office (historical) | Holyoke Station A Post Office (historical) | Hampden | Unknown | |
| Ireland Post Office (historical) | Ireland Post Office (historical) | Hampden | Unknown | |
| Littleville Post Office (historical) | Littleville Post Office (historical) | Hampden | Unknown | |
| Long Meadow Post Office (historical) | Long Meadow Post Office (historical) | Hampden | Unknown | |
| Ludlow Center Post Office (historical) | Ludlow Center Post Office (historical) | Hampden | Unknown | |
| Merrick Post Office (historical) | Merrick Post Office (historical) | Hampden | Unknown | |
| Montgomery Post Office (historical) | Montgomery Post Office (historical) | Hampden | Unknown | |
| Mundale Post Office (historical) | Mundale Post Office (historical) | Hampden | Unknown | |
| North Agawam Post Office (historical) | North Agawam Post Office (historical) | Hampden | Unknown | |
| North Blandford Post Office (historical) | North Blandford Post Office (historical) | Hampden | Unknown | |
| North Chester Post Office (historical) | North Chester Post Office (historical) | Hampden | Unknown | |
| North Wilbraham Post Offfice (historical) | North Wilbraham Post Offfice (historical) | Hampden | Unknown | |
| Palmer Fair Post Office (historical) | Palmer Fair Post Office (historical) | Hampden | Unknown | |
| Parksville Post Office (historical) | Parksville Post Office (historical) | Hampden | Unknown | |
| Rock Valley Post Office (historical) | Rock Valley Post Office (historical) | Hampden | Unknown | |
| Sixteen Acres Post Office (historical) | Sixteen Acres Post Office (historical) | Hampden | Unknown | |
| Tapley Street Annex Post Office (historical) | Tapley Street Annex Post Office (historical) | Hampden | Unknown | |
| Tolland Post Office (historical) | Tolland Post Office (historical) | Hampden | Unknown | |
| West Brimfield Post Office (historical) | West Brimfield Post Office (historical) | Hampden | Unknown | |
| West Granville Post Office (historical) | West Granville Post Office (historical) | Hampden | Unknown | |
| Westover Air Force Base Post Office (historical) | Westover Air Force Base Post Office (historical) | Hampden | Unknown | |
| Westside Post Office (historical) | Westside Post Office (historical) | Hampden | Unknown | |
| Willimansett Post Office (historical) | Willimansett Post Office (historical) | Hampden | Unknown | |
| Wyben Post Office (historical) | Wyben Post Office (historical) | Hampden | Unknown | |
| Bancroft Post Office (historical) | Bancroft Post Office (historical) | Hampshire | Unknown | |
| Barrett Post Office (historical) | Barrett Post Office (historical) | Hampshire | Unknown | |
| Bay State Post Office (historical) | Bay State Post Office (historical) | Hampshire | Unknown | |
| Bisbees Post Office (historical) | Bisbees Post Office (historical) | Hampshire | Unknown | |
| Bradstreet Post Office (historical) | Bradstreet Post Office (historical) | Hampshire | Unknown | |
| Dwight Post Office (historical) | Dwight Post Office (historical) | Hampshire | Unknown | |
| Enfield Post Office (historical) | Enfield Post Office (historical) | Hampshire | Unknown | |
| Greenwich Post Office (historical) | Greenwich Post Office (historical) | Hampshire | Unknown | |
| Greenwich Village Post Office (historical) | Greenwich Village Post Office (historical) | Hampshire | Unknown | |
| North Hadley Post Office (historical) | North Hadley Post Office (historical) | Hampshire | Unknown | |
| Holyoke Place Post Office (historical) | Holyoke Place Post Office (historical) | Hampshire | Unknown | |
| Laurel Park Post Office (historical) | Laurel Park Post Office (historical) | Hampshire | Unknown | |
| Loudville Post Office (historical) | Loudville Post Office (historical) | Hampshire | Unknown | |
| North Prescott Post Office (historical) | North Prescott Post Office (historical) | Hampshire | Unknown | |
| Norwich Post Office (historical) | Norwich Post Office (historical) | Hampshire | Unknown | |
| Pelham Post Office (historical) | Pelham Post Office (historical) | Hampshire | Unknown | |
| Prescott Post Office (historical) | Prescott Post Office (historical) | Hampshire | Unknown | |
| Ringville Post Office (historical) | Ringville Post Office (historical) | Hampshire | Unknown | |
| Smiths Post Office (historical) | Smiths Post Office (historical) | Hampshire | Unknown | |
| Smiths Ferry Post Office (historical) | Smiths Ferry Post Office (historical) | Hampshire | Unknown | |
| South Amherst Post Office (historical) | South Amherst Post Office (historical) | Hampshire | Unknown | |
| South Hadley Falls Post Office (historical) | South Hadley Falls Post Office (historical) | Hampshire | Unknown | |
| South Worthington Post Office (historical) | South Worthington Post Office (historical) | Hampshire | Unknown | |
| Swift River Post Office (historical) | Swift River Post Office (historical) | Hampshire | Unknown | |
| West Cummington Post Office (historical) | West Cummington Post Office (historical) | Hampshire | Unknown | |
| West Farms Post Office (historical) | West Farms Post Office (historical) | Hampshire | Unknown | |
| West Hampton Post Office (historical) | West Hampton Post Office (historical) | Hampshire | Unknown | |
| West Pelham Post Office (historical) | West Pelham Post Office (historical) | Hampshire | Unknown | |
| West Worthington Post Office (historical) | West Worthington Post Office (historical) | Hampshire | Unknown | |
| Siasconset Post Office (historical) | Siasconset Post Office (historical) | Nantucket | Unknown | |
| Wauwinet Post Office (historical) | Wauwinet Post Office (historical) | Nantucket | Unknown | |
| Allerton Post Office (historical) | Allerton Post Office (historical) | Plymouth | Unknown | |
| Antassawamock Neck Post Office (historical) | Antassawamock Neck Post Office (historical) | Plymouth | Unknown | |
| Brockton Fair Grounds Post Office (historical) | Brockton Fair Grounds Post Office (historical) | Plymouth | Unknown | |
| Burrage Post Office (historical) | Burrage Post Office (historical) | Plymouth | Unknown | |
| Castle Cove Post Office (historical) | Castle Cove Post Office (historical) | Plymouth | Unknown | |
| Center Marshfield Post Office (historical) | Center Marshfield Post Office (historical) | Plymouth | Unknown | |
| Center Street Post Office (historical) | Center Street Post Office (historical) | Plymouth | Unknown | |
| Commercial Street Post Office (historical) | Commercial Street Post Office (historical) | Plymouth | Unknown | |
| Crescent Beach Post Office (historical) | Crescent Beach Post Office (historical) | Plymouth | Unknown | |
| Crow Point Post Office (historical) | Crow Point Post Office (historical) | Plymouth | Unknown | |
| Derby Post Office (historical) | Derby Post Office (historical) | Plymouth | Unknown | |
| East Mattapoisett Post Office (historical) | East Mattapoisett Post Office (historical) | Plymouth | Unknown | |
| Egypt Post Office (historical) | Egypt Post Office (historical) | Plymouth | Unknown | |
| Fort Andrews Post Office (historical) | Fort Andrews Post Office (historical) | Plymouth | Unknown | |
| Hamilton Beach Post Office (historical) | Hamilton Beach Post Office (historical) | Plymouth | Unknown | |
| Hanover Center Post Office (historical) | Hanover Center Post Office (historical) | Plymouth | Unknown | |
| Hanson Post Office (historical) | Hanson Post Office (historical) | Plymouth | Unknown | |
| Island Creek Post Office (historical) | Island Creek Post Office (historical) | Plymouth | Unknown | |
| Kenberma Post Office (historical) | Kenberma Post Office (historical) | Plymouth | Unknown | |
| Lakeville Post Office (historical) | Lakeville Post Office (historical) | Plymouth | Unknown | |
| Middleboro Four Corners Post Office (historical) | Middleboro Four Corners Post Office (historical) | Plymouth | Unknown | |
| Nantasket Beach Post Office (historical) | Nantasket Beach Post Office (historical) | Plymouth | Unknown | |
| North Garver Post Office | North Garver Post Office | Plymouth | Unknown | |
| North West Bridgewater Post Office (historical) | North West Bridgewater Post Office (historical) | Plymouth | Unknown | |
| Northville Post Office (historical) | Northville Post Office (historical) | Plymouth | Unknown | |
| Parkwood Beach Post Office (historical) | Parkwood Beach Post Office (historical) | Plymouth | Unknown | |
| Pinehurst Beach Post Office (historical) | Pinehurst Beach Post Office (historical) | Plymouth | Unknown | |
| Point Independence Post Office (historical) | Point Independence Post Office (historical) | Plymouth | Unknown | |
| Pondville Post Office (historical) | Pondville Post Office (historical) | Plymouth | Unknown | |
| Raymond Post Office (historical) | Raymond Post Office (historical) | Plymouth | Unknown | |
| Rexhame Post Office (historical) | Rexhame Post Office (historical) | Plymouth | Unknown | |
| Ridge Hill Post Office (historical) | Ridge Hill Post Office (historical) | Plymouth | Unknown | |
| Rivermoor Post Office (historical) | Rivermoor Post Office (historical) | Plymouth | Unknown | |
| Sandhills Post Office (historical) | Sandhills Post Office (historical) | Plymouth | Unknown | |
| Scituate Centre Post Office (historical) | Scituate Centre Post Office (historical) | Plymouth | Unknown | |
| Scituate Harbor Post Office (historical) | Scituate Harbor Post Office (historical) | Plymouth | Unknown | |
| Shore Acres Post Office (historical) | Shore Acres Post Office (historical) | Plymouth | Unknown | |
| South Bridgewater Post Office (historical) | South Bridgewater Post Office (historical) | Plymouth | Unknown | |
| South Duxbury Post Office (historical) | South Duxbury Post Office (historical) | Plymouth | Unknown | |
| South Middleboro Post Office (historical) | South Middleboro Post Office (historical) | Plymouth | Unknown | |
| Standish Post Office (historical) | Standish Post Office (historical) | Plymouth | Unknown | |
| Standish Shore Post Office (historical) | Standish Shore Post Office (historical) | Plymouth | Unknown | |
| Straits Pond Post Office (historical) | Straits Pond Post Office (historical) | Plymouth | Unknown | |
| West Abington Post Office (historical) | West Abington Post Office (historical) | Plymouth | Unknown | |
| West Duxbury Post Office (historical) | West Duxbury Post Office (historical) | Plymouth | Unknown | |
| West Middleboro Post Office (historical) | West Middleboro Post Office (historical) | Plymouth | Unknown | |
| Athol Station A Post Office (historical) | Athol Station A Post Office (historical) | Worcester | Unknown | |
| Barre Plains Post Office (historical) | Barre Plains Post Office (historical) | Worcester | Unknown | |
| Bogue Post Office (historical) | Bogue Post Office (historical) | Worcester | Unknown | |
| Boylston Post Office (historical) | Boylston Post Office (historical) | Worcester | Unknown | |
| Brooks Station Post Office (historical) | Brooks Station Post Office (historical) | Worcester | Unknown | |
| Chapinville Post Office (historical) | Chapinville Post Office (historical) | Worcester | Unknown | |
| Cleghorn Post Office (historical) | Cleghorn Post Office (historical) | Worcester | Unknown | |
| Coldbrook Springs Post Office (historical) | Coldbrook Springs Post Office (historical) | Worcester | Unknown | |
| Cordaville Post Office (historical) | Cordaville Post Office (historical) | Worcester | Unknown | |
| Dana Post Office (historical) | Dana Post Office (historical) | Worcester | Unknown | |
| Devens Post Office (historical) | Devens Post Office (historical) | Worcester | Unknown | |
| Dodge Post Office (historical) | Dodge Post Office (historical) | Worcester | Unknown | |
| Dickinson Post Office (historical) | Dickinson Post Office (historical) | Worcester | Unknown | |
| Douglas Post Office (historical) | Douglas Post Office (historical) | Worcester | Unknown | |
| East Blackstone Post Office (historical) | East Blackstone Post Office (historical) | Worcester | Unknown | |
| East Gardner Post Office (historical) | East Gardner Post Office (historical) | Worcester | Unknown | |
| East Hubbardston Post Office (historical) | East Hubbardston Post Office (historical) | Worcester | Unknown | |
| Edgemere Post Office (historical) | Edgemere Post Office (historical) | Worcester | Unknown | |
| Farnumsville Post Office (historical) | Farnumsville Post Office (historical) | Worcester | Unknown | |
| Fryville Post Office (historical) | Fryville Post Office (historical) | Worcester | Unknown | |
| Furnace Post Office (historical) | Furnace Post Office (historical) | Worcester | Unknown | |
| Globe Village Post Office (historical) | Globe Village Post Office (historical) | Worcester | Unknown | |
| Grafton Colony Post Office (historical) | Grafton Colony Post Office (historical) | Worcester | Unknown | |
| McTammany Post Office (historical) | McTammany Post Office (historical) | Worcester | Unknown | |
| Mount Wachusett Post Office (historical) | Mount Wachusett Post Office (historical) | Worcester | Unknown | |
| Nichewaug Post Office (historical) | Nichewaug Post Office (historical) | Worcester | Unknown | |
| Night Post Office (historical) | Night Post Office (historical) | Worcester | Unknown | |
| North Ashburnham Post Office (historical) | North Ashburnham Post Office (historical) | Worcester | Unknown | |
| North Dana Post Office (historical) | North Dana Post Office (historical) | Worcester | Unknown | |
| North Leominster Post Office (historical) | North Leominster Post Office (historical) | Worcester | Unknown | |
| North Rutland Post Office (historical) | North Rutland Post Office (historical) | Worcester | Unknown | |
| North Spencer Post Office (historical) | North Spencer Post Office (historical) | Worcester | Unknown | |
| Northbridge Center Post Office (historical) | Northbridge Center Post Office (historical) | Worcester | Unknown | |
| Otter River Post Office (historical) | Otter River Post Office (historical) | Worcester | Unknown | |
| Phillipston Post Office (historical) | Phillipston Post Office (historical) | Worcester | Unknown | |
| Pratts Junction Post Office (historical) | Pratts Junction Post Office (historical) | Worcester | Unknown | |
| Princeton Depot Post Office (historical) | Princeton Depot Post Office (historical) | Worcester | Unknown | |
| Quinapoxet Post Office (historical) | Quinapoxet Post Office (historical) | Worcester | Unknown | |
| Royalston West Post Office (historical) | Royalston West Post Office (historical) | Worcester | Unknown | |
| Rutland Heights Post Office (historical) | Rutland Heights Post Office (historical) | Worcester | Unknown | |
| Saundersville Post Office (historical) | Saundersville Post Office (historical) | Worcester | Unknown | |
| South Gardner Post Office (historical) | South Gardner Post Office (historical) | Worcester | Unknown | |
| South Milford Post Office (historical) | South Milford Post Office (historical) | Worcester | Unknown | |
| South Shrewsbury Post Office (historical) | South Shrewsbury Post Office (historical) | Worcester | Unknown | |
| South Warren Post Office (historical) | South Warren Post Office (historical) | Worcester | Unknown | |
| Southville Post Office (historical) | Southville Post Office (historical) | Worcester | Unknown | |
| Sutton Post Office (historical) | Sutton Post Office (historical) | Worcester | Unknown | |
| Valley Village Post Office (historical) | Valley Village Post Office (historical) | Worcester | Unknown | |
| Wachusetts Post Office (historical) | Wachusetts Post Office (historical) | Worcester | Unknown | |
| Wachusetts Village Post Office (historical) | Wachusetts Village Post Office (historical) | Worcester | Unknown | |
| Waterford Post Office (historical) | Waterford Post Office (historical) | Worcester | Unknown | |
| Waterville Post Office (historical) | Waterville Post Office (historical) | Worcester | Unknown | |
| Wessonville Post Office (historical) | Wessonville Post Office (historical) | Worcester | Unknown | |
| West Auburn Post Office (historical) | West Auburn Post Office (historical) | Worcester | Unknown | |
| West Berlin Post Office (historical) | West Berlin Post Office (historical) | Worcester | Unknown | |
| West Dudley Post Office (historical) | West Dudley Post Office (historical) | Worcester | Unknown | |
| West Fitchburg Post Office (historical) | West Fitchburg Post Office (historical) | Worcester | Unknown | |
| West Gardner Post Office (historical) | West Gardner Post Office (historical) | Worcester | Unknown | |
| West Rutland Post Office (historical) | West Rutland Post Office (historical) | Worcester | Unknown | |
| West Sterling Post Office (historical) | West Sterling Post Office (historical) | Worcester | Unknown | |
| West Sutton Post Office (historical) | West Sutton Post Office (historical) | Worcester | Unknown | |
| White Valley Post Office (historical) | White Valley Post Office (historical) | Worcester | Unknown | |
| Williamsville Post Office (historical) | Williamsville Post Office (historical) | Worcester | Unknown | |
| Worcester Station B Post Office (historical) | Worcester Station B Post Office (historical) | Worcester | Unknown | |
| Worcester Station D Post Office (historical) | Worcester Station D Post Office (historical) | Worcester | Unknown | |
| Worcester Station F Post Office (historical) | Worcester Station F Post Office (historical) | Worcester | Unknown | |
| Worcester Station G Post Office (historical) | Worcester Station G Post Office (historical) | Worcester | Unknown | |
| Abington Post Office | Abington Post Office | Plymouth | Unknown | |
| Accord Post Office | Accord Post Office | Plymouth | Unknown | |
| Assinippi Post Office | Assinippi Post Office | Plymouth | Unknown | |
| Brant Rock Post Office | Brant Rock Post Office | Plymouth | Unknown | |
| Bridgewater Post Office | Bridgewater Post Office | Plymouth | Unknown | |
| Brockton Post Office | Brockton Post Office | Plymouth | Unknown | |
| Bryantville Post Office | Bryantville Post Office | Plymouth | Unknown | |
| Campello Post Office | Campello Post Office | Plymouth | Unknown | |
| Carver Post Office | Carver Post Office | Plymouth | 112 | Plympton |
| Center Post Office | Center Post Office | Plymouth | Unknown | |
| Duxbury Post Office | Duxbury Post Office | Plymouth | 43 | Duxbury |
| East Bridgewater Post Office | East Bridgewater Post Office | Plymouth | Unknown | |
| East Wareham Post Office | East Wareham Post Office | Plymouth | Unknown | |
| Elmwood Post Office | Elmwood Post Office | Plymouth | Unknown | |
| Green Harbor Post Office | Green Harbor Post Office | Plymouth | Unknown | |
| Greenbush Post Office | Greenbush Post Office | Plymouth | Unknown | |
| Halifax Post Office | Halifax Post Office | Plymouth | 89 | Plympton |
| Hanover Post Office | Hanover Post Office | Plymouth | 52 | Hanover |
| Hanson Post Office | Hanson Post Office | Plymouth | Unknown | |
| Hingham Post Office | Hingham Post Office | Plymouth | Unknown | |
| Hull Post Office | Hull Post Office | Plymouth | Unknown | |
| Humarock Post Office | Humarock Post Office | Plymouth | Unknown | |
| Kingston Post Office | Kingston Post Office | Plymouth | Unknown | |
| Manomet Post Office | Manomet Post Office | Plymouth | 92 | Manomet |
| Marion Post Office | Marion Post Office | Plymouth | Unknown | |
| Marshfield Hills Post Office | Marshfield Hills Post Office | Plymouth | Unknown | |
| Marshfield Post Office | Marshfield Post Office | Plymouth | Unknown | |
| Mattapoisett Post Office | Mattapoisett Post Office | Plymouth | 10 | Marion |
| Middleboro Post Office | Middleboro Post Office | Plymouth | 102 | Bridgewater |
| Minot Post Office | Minot Post Office | Plymouth | Unknown | |
| Monponsett Post Office | Monponsett Post Office | Plymouth | Unknown | |
| Montello Post Office | Montello Post Office | Plymouth | Unknown | |
| North Abington Post Office | North Abington Post Office | Plymouth | 141 | Weymouth |
| Duxbury Post Office (historical) | Duxbury Post Office (historical) | Plymouth | Unknown | |
| North Marshfield Post Office | North Marshfield Post Office | Plymouth | Unknown | |
| North Pembroke Post Office | North Pembroke Post Office | Plymouth | 30 | Hanover |
| North Plymouth Post Office | North Plymouth Post Office | Plymouth | Unknown | |
| North Scituate Post Office | North Scituate Post Office | Plymouth | 39 | Cohasset |
| Norwell Post Office | Norwell Post Office | Plymouth | Unknown | |
| Ocean Bluff Post Office | Ocean Bluff Post Office | Plymouth | Unknown | |
| Onset Post Office | Onset Post Office | Plymouth | Unknown | |
| Pembroke Post Office | Pembroke Post Office | Plymouth | Unknown | |
| Plymouth Post Office | Plymouth Post Office | Plymouth | 39 | Plymouth |
| Plympton Post Office | Plympton Post Office | Plymouth | 105 | Plympton |
| Rockland Post Office | Rockland Post Office | Plymouth | 148 | Weymouth |
| Scituate Post Office | Scituate Post Office | Plymouth | Unknown | |
| South Carver Post Office | South Carver Post Office | Plymouth | 98 | Wareham |
| Swifts Beach Post Office | Swifts Beach Post Office | Plymouth | Unknown | |
| Wareham Post Office | Wareham Post Office | Plymouth | Unknown | |
| West Bridgewater Post Office | West Bridgewater Post Office | Plymouth | Unknown | |
| West Hanover Post Office | West Hanover Post Office | Plymouth | Unknown | |
| West Wareham Post Office | West Wareham Post Office | Plymouth | 33 | Snipatuit Pond |
| White Horse Beach Post Office | White Horse Beach Post Office | Plymouth | 36 | Manomet |
| Whitman Post Office | Whitman Post Office | Plymouth | Unknown | |
| Ashfield Post Office | Ashfield Post Office | Franklin | 1250 | Ashfield |
| Buckland Post Office | Buckland Post Office | Franklin | 673 | Ashfield |
| Charlemont Post Office | Charlemont Post Office | Franklin | 554 | Rowe |
| Chisholm Post Office | Chisholm Post Office | Franklin | Unknown | |
| Colrain Post Office | Colrain Post Office | Franklin | 620 | Colrain |
| Conway Post Office | Conway Post Office | Franklin | 600 | Shelburne Falls |
| Deerfield Post Office | Deerfield Post Office | Franklin | 148 | Greenfield |
| Erving Post Office | Erving Post Office | Franklin | 335 | Millers Falls |
| Griswoldville Post Office (historical) | Griswoldville Post Office (historical) | Franklin | Unknown | |
| Heath Post Office | Heath Post Office | Franklin | 1676 | Heath |
| Lake Pleasant Post Office | Lake Pleasant Post Office | Franklin | 295 | Greenfield |
| Leverett Post Office | Leverett Post Office | Franklin | 456 | Mount Toby |
| Millers Falls Post Office (historical) | Millers Falls Post Office (historical) | Franklin | Unknown | |
| Monroe Bridge Post Office | Monroe Bridge Post Office | Franklin | 1129 | Rowe |
| Montague Canal Post Office (historical) | Montague Canal Post Office (historical) | Franklin | Unknown | |
| Montague Post Office | Montague Post Office | Franklin | 239 | Greenfield |
| Mount Hermon Post Office | Mount Hermon Post Office | Franklin | Unknown | |
| New Salem Post Office | New Salem Post Office | Franklin | 515 | Orange |
| Northfield Post Office | Northfield Post Office | Franklin | 279 | Northfield |
| Orange Post Office | Orange Post Office | Franklin | 515 | Orange |
| Rowe Post Office | Rowe Post Office | Franklin | 1342 | Rowe |
| Shattuckville Post Office | Shattuckville Post Office | Franklin | Unknown | |
| Shelburne Falls Post Office | Shelburne Falls Post Office | Franklin | 423 | Shelburne Falls |
| Shutesbury Post Office | Shutesbury Post Office | Franklin | 1224 | Shutesbury |
| South Deerfield Post Office | South Deerfield Post Office | Franklin | 197 | Mount Toby |
| Sunderland Post Office | Sunderland Post Office | Franklin | Unknown | |
| Turners Falls Post Office | Turners Falls Post Office | Franklin | 190 | Greenfield |
| Wendell Post Office | Wendell Post Office | Franklin | Unknown | |
| Wendell Depot Post Office | Wendell Depot Post Office | Franklin | 502 | Orange |
| Whatley Post Office | Whatley Post Office | Franklin | Unknown | |
| Amherst Post Office | Amherst Post Office | Hampshire | 292 | Mount Toby |
| Belchertown Post Office | Belchertown Post Office | Hampshire | 600 | Belchertown |
| Chesterfield Post Office | Chesterfield Post Office | Hampshire | 1437 | Goshen |
| Cummington Post Office | Cummington Post Office | Hampshire | 1030 | Worthington |
| Cushman Post Office | Cushman Post Office | Hampshire | Unknown | |
| Easthampton Post Office | Easthampton Post Office | Hampshire | 180 | Easthampton |
| Falls Post Office | Falls Post Office | Hampshire | Unknown | |
| Florence Post Office | Florence Post Office | Hampshire | 276 | Easthampton |
| Goshen Post Office | Goshen Post Office | Hampshire | Unknown | |
| Granby Post Office | Granby Post Office | Hampshire | 341 | Mount Holyoke |
| Hadley Post Office | Hadley Post Office | Hampshire | 128 | Mount Holyoke |
| Hatfield Post Office | Hatfield Post Office | Hampshire | 125 | Mount Holyoke |
| Haydenville Post Office | Haydenville Post Office | Hampshire | 417 | Easthampton |
| Huntington Post Office | Huntington Post Office | Hampshire | 387 | Blandford |
| Leeds Post Office | Leeds Post Office | Hampshire | 351 | Easthampton |
| Middlefield Post Office | Middlefield Post Office | Hampshire | Unknown | |
| Mount Tom Post Office | Mount Tom Post Office | Hampshire | Unknown | |
| North Amherst Post Office | North Amherst Post Office | Hampshire | 194 | Mount Toby |
| North Hatfield Post Office | North Hatfield Post Office | Hampshire | 171 | Mount Toby |
| Northampton Post Office | Northampton Post Office | Hampshire | 128 | Easthampton |
| South Hadley Post Office | South Hadley Post Office | Hampshire | 243 | Mount Holyoke |
| Southampton Post Office | Southampton Post Office | Hampshire | 285 | Mount Tom |
| Ware Post Office | Ware Post Office | Hampshire | 407 | Winsor Dam |
| West Chesterfield Post Office | West Chesterfield Post Office | Hampshire | Unknown | |
| West Hatfield Post Office | West Hatfield Post Office | Hampshire | Unknown | |
| Williamsburg Post Office | Williamsburg Post Office | Hampshire | 541 | Williamsburg |
| Worthington Post Office | Worthington Post Office | Hampshire | 1483 | Worthington |
| Agawam Post Office | Agawam Post Office | Hampden | Unknown | |
| Blandford Post Office | Blandford Post Office | Hampden | 1404 | Blandford |
| Bondsville Post Office | Bondsville Post Office | Hampden | 348 | Palmer |
| Brightwood Post Office | Brightwood Post Office | Hampden | Unknown | |
| Brimfield Post Office | Brimfield Post Office | Hampden | 663 | Wales |
| Chester Post Office | Chester Post Office | Hampden | 584 | Chester |
| Chicopee Center Post Office | Chicopee Center Post Office | Hampden | 98 | Springfield North |
| Chicopee Post Office | Chicopee Post Office | Hampden | 98 | Springfield North |
| Colonial Station Branch Post Office | Colonial Station Branch Post Office | Hampden | 66 | Springfield South |
| East Long Meadow Post Office | East Long Meadow Post Office | Hampden | Unknown | |
| Feeding Hills Post Office | Feeding Hills Post Office | Hampden | 210 | West Springfield |
| Forest Park Post Office | Forest Park Post Office | Hampden | 187 | Springfield South |
| Granville Post Office | Granville Post Office | Hampden | Unknown | |
| Hampden Post Office | Hampden Post Office | Hampden | 312 | Hampden |
| Highland Post Office | Highland Post Office | Hampden | Unknown | |
| Holyoke Post Office | Holyoke Post Office | Hampden | 161 | Springfield North |
| Indian Orchard Post Office | Indian Orchard Post Office | Hampden | 174 | Springfield North |
| Longmeadow Post Office | Longmeadow Post Office | Hampden | Unknown | |
| Ludlow Post Office | Ludlow Post Office | Hampden | Unknown | |
| Mittineaque Post Office | Mittineaque Post Office | Hampden | Unknown | |
| Monson Post Office | Monson Post Office | Hampden | 381 | Monson |
| Palmer Post Office (historical) | Palmer Post Office (historical) | Hampden | 440 | Palmer |
| Pine Point Post Office (historical) | Pine Point Post Office (historical) | Hampden | Unknown | |
| Russell Post Office (historical) | Russell Post Office (historical) | Hampden | 318 | Woronoco |
| Southwick Post Office | Southwick Post Office | Hampden | 289 | Southwick |
| Springfield Post Office | Springfield Post Office | Hampden | 66 | Springfield South |
| Thorndike Post Office | Thorndike Post Office | Hampden | 371 | Palmer |
| Three Rivers Post Office | Three Rivers Post Office | Hampden | 312 | Palmer |
| Wales Post Office | Wales Post Office | Hampden | Unknown | |
| West Springfield Post Office | West Springfield Post Office | Hampden | Unknown | |
| Westfield Post Office | Westfield Post Office | Hampden | Unknown | |
| Wilbraham Post Office | Wilbraham Post Office | Hampden | 279 | Hampden |
| Woronoco Post Office | Woronoco Post Office | Hampden | Unknown | |
| Adams Post Office | Adams Post Office | Berkshire | 784 | North Adams |
| Allendale Post Office | Allendale Post Office | Berkshire | Unknown | |
| Ashley Falls Post Office | Ashley Falls Post Office | Berkshire | 682 | Ashley Falls |
| Becket Post Office | Becket Post Office | Berkshire | 1217 | Becket |
| Berkshire Post Office | Berkshire Post Office | Berkshire | 1014 | Cheshire |
| Cheshire Post Office | Cheshire Post Office | Berkshire | 978 | Cheshire |
| Dalton Post Office | Dalton Post Office | Berkshire | 1119 | Pittsfield East |
| Drury Post Office | Drury Post Office | Berkshire | Unknown | |
| East Otis Post Office | East Otis Post Office | Berkshire | Unknown | |
| Glendale Post Office | Glendale Post Office | Berkshire | Unknown | |
| Great Barrington Post Office | Great Barrington Post Office | Berkshire | 709 | Great Barrington |
| Hancock Post Office | Hancock Post Office | Berkshire | 1010 | Hancock |
| Hinsdale Post Office | Hinsdale Post Office | Berkshire | 1430 | Peru |
| Housatonic Post Office | Housatonic Post Office | Berkshire | 745 | Stockbridge |
| Lanesboro Post Office | Lanesboro Post Office | Berkshire | 1165 | Cheshire |
| Lee Post Office | Lee Post Office | Berkshire | 876 | Stockbridge |
| Lenox Post Office | Lenox Post Office | Berkshire | 1250 | Stockbridge |
| Lenoxdale Post Office | Lenoxdale Post Office | Berkshire | 951 | East Lee |
| Mill River Post Office | Mill River Post Office | Berkshire | Unknown | |
| Monterey Post Office | Monterey Post Office | Berkshire | 1289 | Monterey |
| North Egremont Post Office | North Egremont Post Office | Berkshire | Unknown | |
| Pittsfield Post Office | Pittsfield Post Office | Berkshire | 1027 | Pittsfield East |
| Richmond Post Office | Richmond Post Office | Berkshire | Unknown | |
| Sandisfield Post Office | Sandisfield Post Office | Berkshire | 942 | Tolland Center |
| Savoy Post Office | Savoy Post Office | Berkshire | Unknown | |
| Sheffield Post Office | Sheffield Post Office | Berkshire | 673 | Ashley Falls |
| South Egremont Post Office | South Egremont Post Office | Berkshire | 715 | Egremont |
| South Lee Post Office | South Lee Post Office | Berkshire | Unknown | |
| Southfield Post Office | Southfield Post Office | Berkshire | 1207 | South Sandisfield |
| Stockbridge Post Office | Stockbridge Post Office | Berkshire | 840 | Stockbridge |
| Tyringham Post Office | Tyringham Post Office | Berkshire | Unknown | |
| West New Boston Post Office | West New Boston Post Office | Berkshire | 935 | Tolland Center |
| West Stockbridge Post Office | West Stockbridge Post Office | Berkshire | 889 | Stockbridge |
| Williamstown Post Office | Williamstown Post Office | Berkshire | 699 | Williamstown |
| Windsor Post Office (historical) | Windsor Post Office (historical) | Berkshire | 2034 | Windsor |
| Amesbury Post Office | Amesbury Post Office | Essex | 49 | Newburyport West |
| Andover Post Office | Andover Post Office | Essex | 164 | Lawrence |
| Ballardvale Post Office | Ballardvale Post Office | Essex | Unknown | |
| Beverly Farms Post Office | Beverly Farms Post Office | Essex | Unknown | |
| Beverly Post Office | Beverly Post Office | Essex | 33 | Salem |
| Byfield Post Office | Byfield Post Office | Essex | Unknown | |
| Danvers Post Office | Danvers Post Office | Essex | 39 | Salem |
| East Lynn Post Office | East Lynn Post Office | Essex | Unknown | |
| Essex Post Office | Essex Post Office | Essex | 30 | Ipswich |
| Georgetown Post Office | Georgetown Post Office | Essex | Unknown | |
| Gloucester Post Office (historical) | Gloucester Post Office (historical) | Essex | 16 | Gloucester |
| Groveland Post Office | Groveland Post Office | Essex | Unknown | |
| Hamilton Post Office | Hamilton Post Office | Essex | Unknown | |
| Hathorne Post Office (historical) | Hathorne Post Office (historical) | Essex | Unknown | |
| Haverhill Post Office | Haverhill Post Office | Essex | 20 | Haverhill |
| Ipswich Post Office | Ipswich Post Office | Essex | 13 | Ipswich |
| Ashburnham Post Office | Ashburnham Post Office | Worcester | Unknown | |
| Assumption College Post Office | Assumption College Post Office | Worcester | Unknown | |
| Athol Post Office | Athol Post Office | Worcester | 528 | Athol |
| Auburn Post Office | Auburn Post Office | Worcester | Unknown | |
| Baldwinville Post Office | Baldwinville Post Office | Worcester | Unknown | |
| Barre Post Office | Barre Post Office | Worcester | Unknown | |
| Berlin Post Office | Berlin Post Office | Worcester | Unknown | |
| Blackstone Post Office | Blackstone Post Office | Worcester | 174 | Blackstone |
| Bolton Post Office | Bolton Post Office | Worcester | Unknown | |
| Brookfield Post Office | Brookfield Post Office | Worcester | Unknown | |
| Charlton City Post Office | Charlton City Post Office | Worcester | Unknown | |
| Charlton Depot Post Office (historical) | Charlton Depot Post Office (historical) | Worcester | Unknown | |
| Charlton Post Office | Charlton Post Office | Worcester | Unknown | |
| Cherry Valley Post Office | Cherry Valley Post Office | Worcester | Unknown | |
| Clinton Post Office | Clinton Post Office | Worcester | Unknown | |
| Dudley Hill Post Office | Dudley Hill Post Office | Worcester | Unknown | |
| Dudley Post Office | Dudley Post Office | Worcester | Unknown | |
| East Brookfield Post Office | East Brookfield Post Office | Worcester | Unknown | |
| East Douglas Post Office | East Douglas Post Office | Worcester | Unknown | |
| East Princeton Post Office | East Princeton Post Office | Worcester | Unknown | |
| East Templeton Post Office | East Templeton Post Office | Worcester | Unknown | |
| Fayville Post Office | Fayville Post Office | Worcester | Unknown | |
| Fiskdale Post Office | Fiskdale Post Office | Worcester | Unknown | |
| Fitchburg Post Office | Fitchburg Post Office | Worcester | 479 | Fitchburg |
| Gardner Post Office | Gardner Post Office | Worcester | 1073 | Gardner |
| Gilbertville Post Office | Gilbertville Post Office | Worcester | Unknown | |
| Grafton Post Office | Grafton Post Office | Worcester | Unknown | |
| Greendale Post Office | Greendale Post Office | Worcester | Unknown | |
| Hardwich Post Office | Hardwich Post Office | Worcester | Unknown | |
| Holden Post Office | Holden Post Office | Worcester | 807 | Worcester North |
| Hopedale Post Office | Hopedale Post Office | Worcester | Unknown | |
| Hubbardston Post Office | Hubbardston Post Office | Worcester | Unknown | |
| Jefferson Post Office (historical) | Jefferson Post Office (historical) | Worcester | Unknown | |
| Lancaster Post Office | Lancaster Post Office | Worcester | Unknown | |
| Leicester Post Office | Leicester Post Office | Worcester | 915 | Leicester |
| Leominster Post Office | Leominster Post Office | Worcester | 397 | Fitchburg |
| Linwood Post Office | Linwood Post Office | Worcester | Unknown | |
| Lunenburg Post Office | Lunenburg Post Office | Worcester | 554 | Shirley |
| Manchaug Post Office | Manchaug Post Office | Worcester | Unknown | |
| Mendon Post Office | Mendon Post Office | Worcester | 367 | Blackstone |
| Milford Post Office | Milford Post Office | Worcester | 361 | Milford |
| Millbury Post Office | Millbury Post Office | Worcester | 423 | Worcester South |
| Millville Post Office | Millville Post Office | Worcester | Unknown | |
| Morningdale Post Office | Morningdale Post Office | Worcester | 482 | Worcester North |
| New Braintree Post Office | New Braintree Post Office | Worcester | Unknown | |
| North Brookfield Post Office | North Brookfield Post Office | Worcester | Unknown | |
| North Grafton Post Office | North Grafton Post Office | Worcester | Unknown | |
| North Oxford Post Office | North Oxford Post Office | Worcester | Unknown | |
| North Uxbridge Post Office (historical) | North Uxbridge Post Office (historical) | Worcester | Unknown | |
| Northborough Post Office | Northborough Post Office | Worcester | 318 | Shrewsbury |
| Northbridge Post Office | Northbridge Post Office | Worcester | Unknown | |
| Oakdale Post Office | Oakdale Post Office | Worcester | Unknown | |
| Oakham Post Office | Oakham Post Office | Worcester | Unknown | |
| Oxford Post Office | Oxford Post Office | Worcester | 502 | Oxford |
| Paxton Post Office | Paxton Post Office | Worcester | Unknown | |
| Petersham Post Office | Petersham Post Office | Worcester | Unknown | |
| Princeton Post Office | Princeton Post Office | Worcester | Unknown | |
| Rochdale Post Office | Rochdale Post Office | Worcester | 738 | Leicester |
| Royalston Post Office | Royalston Post Office | Worcester | Unknown | |
| Rutland Post Office | Rutland Post Office | Worcester | Unknown | |
| Shrewsbury Post Office | Shrewsbury Post Office | Worcester | 653 | Shrewsbury |
| South Ashburnham Post Office | South Ashburnham Post Office | Worcester | Unknown | |
| South Athol Post Office | South Athol Post Office | Worcester | Unknown | |
| South Barre Post Office | South Barre Post Office | Worcester | Unknown | |
| South Berlin Post Office | South Berlin Post Office | Worcester | Unknown | |
| South Grafton Post Office | South Grafton Post Office | Worcester | 328 | Grafton |
| South Lancaster Post Office | South Lancaster Post Office | Worcester | Unknown | |
| South Royalston Post Office | South Royalston Post Office | Worcester | Unknown | |
| Southborough Post Office | Southborough Post Office | Worcester | Unknown | |
| Southbridge Post Office | Southbridge Post Office | Worcester | 492 | Southbridge |
| Spencer Post Office | Spencer Post Office | Worcester | Unknown | |
| Sterling Junction Post Office | Sterling Junction Post Office | Worcester | Unknown | |
| Sterling Post Office | Sterling Post Office | Worcester | Unknown | |
| Still River Post Office | Still River Post Office | Worcester | Unknown | |
| Sturbridge Post Office | Sturbridge Post Office | Worcester | 591 | Southbridge |
| Templeton Post Office | Templeton Post Office | Worcester | Unknown | |
| Turnpike Post Office | Turnpike Post Office | Worcester | 390 | Shrewsbury |
| Upton Post Office | Upton Post Office | Worcester | Unknown | |
| Uxbridge Post Office | Uxbridge Post Office | Worcester | Unknown | |
| Warren Post Office | Warren Post Office | Worcester | Unknown | |
| Webster Post Office | Webster Post Office | Worcester | 449 | Webster |
| Webster Square Post Office | Webster Square Post Office | Worcester | Unknown | |
| West Boylston Post Office | West Boylston Post Office | Worcester | 509 | Worcester North |
| West Brookfield Post Office | West Brookfield Post Office | Worcester | Unknown | |
| West Millbury Post Office | West Millbury Post Office | Worcester | Unknown | |
| West Side Post Office | West Side Post Office | Worcester | Unknown | |
| West Upton Post Office | West Upton Post Office | Worcester | Unknown | |
| West Warren Post Office | West Warren Post Office | Worcester | Unknown | |
| Westborough Post Office | Westborough Post Office | Worcester | 285 | Marlborough |
| Westminster Post Office | Westminster Post Office | Worcester | Unknown | |
| Wheelwright Post Office | Wheelwright Post Office | Worcester | Unknown | |
| Whitinsville Post Office | Whitinsville Post Office | Worcester | Unknown | |
| Wilkinsonville Post Office | Wilkinsonville Post Office | Worcester | Unknown | |
| Winchendon Post Office | Winchendon Post Office | Worcester | 974 | Winchendon |
| Winchendon Springs Post Office | Winchendon Springs Post Office | Worcester | Unknown | |
| Worcester Post Office | Worcester Post Office | Worcester | Unknown | |
| Worcester Station A Post Office | Worcester Station A Post Office | Worcester | Unknown | |
| Worcester Station C Post Office | Worcester Station C Post Office | Worcester | Unknown | |
| Stoughton Post Office | Stoughton Post Office | Norfolk | 203 | Blue Hills |
| Acoaxet Post Office (historical) | Acoaxet Post Office (historical) | Bristol | Unknown | |
| Horseneck Post Office (historical) | Horseneck Post Office (historical) | Bristol | Unknown | |
| Horseneck Beach Post Office (historical) | Horseneck Beach Post Office (historical) | Bristol | Unknown | |
| Westport Harbor Post Office (historical) | Westport Harbor Post Office (historical) | Bristol | Unknown | |
| Plainfield Post Office | Plainfield Post Office | Hampshire | 1686 | Plainfield |
| West Barnstable Post Office | West Barnstable Post Office | Barnstable | 36 | Hyannis |
| Woodville Post Office | Woodville Post Office | Middlesex | 348 | Milford |
| Twin City Plaza Post Office | Twin City Plaza Post Office | Worcester | 479 | Fitchburg |
| Provincetown Post Office | Provincetown Post Office | Barnstable | 10 | Provincetown |
| Assonet Post Office | Assonet Post Office | Bristol | 39 | Assonet |
| Attleboro Falls Post Office | Attleboro Falls Post Office | Bristol | 154 | Attleboro |
| Attleboro Post Office | Attleboro Post Office | Bristol | 128 | Attleboro |
| Bellingham Post Office | Bellingham Post Office | Norfolk | 269 | Franklin |
| Central Village Post Office | Central Village Post Office | Bristol | 164 | Head of Westport |
| Douglas Post Office | Douglas Post Office | Worcester | 410 | Uxbridge |
| East Taunton Post Office | East Taunton Post Office | Bristol | 26 | Taunton |
| Flint Post Office | Flint Post Office | Bristol | 180 | Fall River |
| Foxboro Post Office | Foxboro Post Office | Norfolk | 285 | Mansfield |
| Franklin Post Office | Franklin Post Office | Norfolk | 318 | Franklin |
| Highland Station Post Office | Highland Station Post Office | Bristol | 151 | Fall River |
| Holliston Post Office | Holliston Post Office | Middlesex | 249 | Holliston |
| Hopedale Post Office | Hopedale Post Office | Worcester | 269 | Milford |
| Lakeville Post Office | Lakeville Post Office | Plymouth | 69 | Assawompset Pond |
| Mansfield Post Office | Mansfield Post Office | Bristol | 177 | Mansfield |
| Medway Post Office | Medway Post Office | Norfolk | 236 | Holliston |
| Millis Post Office | Millis Post Office | Norfolk | 144 | Medfield |
| Millville Post Office | Millville Post Office | Worcester | 217 | Blackstone |
| Noquochoke Post Office | Noquochoke Post Office | Bristol | 26 | Head of Westport |
| Norfolk Post Office | Norfolk Post Office | Norfolk | 220 | Wrentham |
| North Attleboro Post Office | North Attleboro Post Office | Bristol | 187 | Attleboro |
| North Dighton Post Office | North Dighton Post Office | Bristol | 59 | Assonet |
| North Easton Post Office | North Easton Post Office | Bristol | 141 | Brockton |
| Norton Post Office | Norton Post Office | Bristol | 108 | Norton |
| Raynham Post Office | Raynham Post Office | Bristol | 82 | Taunton |
| Rehoboth Post Office | Rehoboth Post Office | Bristol | 59 | Somerset |
| Seekonk Post Office | Seekonk Post Office | Bristol | 46 | East Providence |
| Somerset Post Office | Somerset Post Office | Bristol | 39 | Fall River |
| South Attleboro Post Office | South Attleboro Post Office | Bristol | 105 | Attleboro |
| South Easton Post Office | South Easton Post Office | Bristol | 102 | Brockton |
| South Station Post Office | South Station Post Office | Bristol | 180 | Fall River |
| Swansea Post Office | Swansea Post Office | Bristol | 59 | Somerset |
| Taunton Post Office | Taunton Post Office | Bristol | 26 | Taunton |
| Walnut Hill Station Post Office | Walnut Hill Station Post Office | Norfolk | 308 | Franklin |
| Walpole Post Office | Walpole Post Office | Norfolk | 154 | Medfield |
| Westport Post Office | Westport Post Office | Bristol | 125 | Fall River East |
| Whitinsville Post Office | Whitinsville Post Office | Worcester | 299 | Uxbridge |
| Wrentham Post Office | Wrentham Post Office | Norfolk | 256 | Wrentham |
| Fort Point Post Office | Fort Point Post Office | Suffolk | 0 | Boston South |
| Chelsea Carrier Annex�Post Office | Chelsea Carrier Annex�Post Office | Suffolk | 10 | Boston North |
| Kenmore Post Office | Kenmore Post Office | Suffolk | 13 | Boston South |
| Lafayette Post Office | Lafayette Post Office | Suffolk | 23 | Boston South |
| M I T Post Office | M I T Post Office | Middlesex | 7 | Boston South |
| Charlestown�Post Office | Charlestown�Post Office | Suffolk | 16 | Boston North |
| Milk Street Post Office | Milk Street Post Office | Suffolk | 26 | Boston South |
| East Boston Post Office | East Boston Post Office | Suffolk | 7 | Boston South |
| East Cambridge Post Office | East Cambridge Post Office | Middlesex | 33 | Boston South |
| Fenway Carrier Annex Post Office | Fenway Carrier Annex Post Office | Suffolk | 10 | Boston South |