Select different State:
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| Frank Post Office (historical) | Frank Post Office (historical) | Allegheny | 912 | McKeesport |
| Maurglen Post Office (historical) | Maurglen Post Office (historical) | Lycoming | 712 | Picture Rocks |
| Cogan Station Post Office (historical) | Cogan Station Post Office (historical) | Lycoming | 607 | Cogan Station |
| Chester Valley Post Office (historical) | Chester Valley Post Office (historical) | Chester | 217 | Valley Forge |
| William Penn Post Office (historical) | William Penn Post Office (historical) | Montgomery | 75 | Norristown |
| Lafayette Hill Post Office (historical) | Lafayette Hill Post Office (historical) | Montgomery | 249 | Norristown |
| Londonderry Post Office (historical) | Londonderry Post Office (historical) | Chester | 636 | Oxford |
| Collamer Post Office (historical) | Collamer Post Office (historical) | Chester | 469 | Oxford |
| Derrydown Post Office (historical) | Derrydown Post Office (historical) | Chester | 367 | Coatesville |
| Leonard Post Office (historical) | Leonard Post Office (historical) | Chester | 538 | Coatesville |
| Lundys Lane Post Office (historical) | Lundys Lane Post Office (historical) | Erie | 945 | Albion |
| Crawfordtown Delancey Post Office (historical) | Crawfordtown Delancey Post Office (historical) | Jefferson | 1345 | Punxsutawney |
| Vinco Post Office (historical) | Vinco Post Office (historical) | Cambria | 1736 | Nanty Glo |
| Expedit Post Office (historical) | Expedit Post Office (historical) | Cambria | 1650 | Nanty Glo |
| Ventland Post Office (historical) | Ventland Post Office (historical) | Clearfield | 1644 | Ramey |
| Oshaniter Post Office (historical) | Oshaniter Post Office (historical) | Clearfield | 1516 | Glen Richey |
| Wismer Post Office | Wismer Post Office | Bucks | 472 | Lumberville |
| Weldbank Post Office (historical) | Weldbank Post Office (historical) | Warren | 1391 | Clarendon |
| North Clarendon Post Office (historical) | North Clarendon Post Office (historical) | Warren | 1401 | Clarendon |
| DeYoung Post Office (historical) | DeYoung Post Office (historical) | Elk | 1913 | Russell City |
| Uwchland Post Office | Uwchland Post Office | Chester | 538 | Downingtown |
| Standford Post Office (historical) | Standford Post Office (historical) | Indiana | 1394 | Commodore |
| Sugargrove Post Office (historical) | Sugargrove Post Office (historical) | Warren | 1394 | Sugar Grove |
| Worcester Post Office | Worcester Post Office | Montgomery | 236 | Lansdale |
| Steelton Post Office | Steelton Post Office | Dauphin | 322 | Steelton |
| Teepleville Post Office (historical) | Teepleville Post Office (historical) | Crawford | Unknown | |
| Esterly Post Office | Esterly Post Office | Berks | 390 | Birdsboro |
| Lake Winola Post Office | Lake Winola Post Office | Wyoming | 1083 | Factoryville |
| Lehigh Valley Post Office | Lehigh Valley Post Office | Lehigh | 351 | Catasauqua |
| Limekiln Post Office | Limekiln Post Office | Berks | 282 | Birdsboro |
| Windgap Post Office (historical) | Windgap Post Office (historical) | Northampton | 669 | Wind Gap |
| Franklin Post Office | Franklin Post Office | Philadelphia | 23 | Philadelphia |
| Pitman Post Office (historical) | Pitman Post Office (historical) | Schuylkill | 942 | Valley View |
| Holland Post Office (historical) | Holland Post Office (historical) | Bucks | 89 | Langhorne |
| Eden Post Office (historical) | Eden Post Office (historical) | Bucks | 115 | Langhorne |
| Maud Post Office (historical) | Maud Post Office (historical) | Bucks | 66 | Beverly |
| Ulysses Post Office (historical) | Ulysses Post Office (historical) | Potter | 2090 | Ulysses |
| Rutland Post Office (historical) | Rutland Post Office (historical) | Tioga | 1375 | Roseville |
| Broad Top Post Office (historical) | Broad Top Post Office (historical) | Huntingdon | 1975 | Saxton |
| Six Mile Run Post Office (historical) | Six Mile Run Post Office (historical) | Bedford | 1132 | Saxton |
| Ranshaw Post Office (historical) | Ranshaw Post Office (historical) | Northumberland | 853 | Shamokin |
| Crowl Post Office (historical) | Crowl Post Office (historical) | Northumberland | 551 | Shamokin |
| Pocono Post Office (historical) | Pocono Post Office (historical) | Monroe | 1831 | Pocono Pines |
| Whitford Post Office (historical) | Whitford Post Office (historical) | Chester | 312 | Downingtown |
| West Whiteland Post Office (historical) | West Whiteland Post Office (historical) | Chester | 354 | Downingtown |
| West Vincent Post Office (historical) | West Vincent Post Office (historical) | Chester | 636 | Downingtown |
| Planebrook Post Office (historical) | Planebrook Post Office (historical) | Chester | 364 | Malvern |
| Oley Post Office (historical) | Oley Post Office (historical) | Berks | 446 | Fleetwood |
| Lower Providence Post Office (historical) | Lower Providence Post Office (historical) | Montgomery | 217 | Collegeville |
| Solebury Post Office (historical) | Solebury Post Office (historical) | Bucks | 381 | Lumberville |
| Edison Post Office (historical) | Edison Post Office (historical) | Bucks | 197 | Doylestown |
| Buckingham Post Office (historical) | Buckingham Post Office (historical) | Bucks | 246 | Buckingham |
| Furlong Post Office (historical) | Furlong Post Office (historical) | Bucks | 312 | Buckingham |
| Almont Post Office (historical) | Almont Post Office (historical) | Bucks | 571 | Telford |
| Holicong Post Office (historical) | Holicong Post Office (historical) | Bucks | 256 | Buckingham |
| Silverdale Post Office (historical) | Silverdale Post Office (historical) | Bucks | 436 | Telford |
| Dryville Post Office (historical) | Dryville Post Office (historical) | Berks | 797 | Fleetwood |
| Calcium Post Office (historical) | Calcium Post Office (historical) | Berks | 344 | Temple |
| Gaffnee Post Office (historical) | Gaffnee Post Office (historical) | Potter | 1575 | Brookland |
| Germania Post Office (historical) | Germania Post Office (historical) | Potter | 2037 | Galeton |
| Frampton Post Office (historical) | Frampton Post Office (historical) | Clarion | 1440 | Strattanville |
| Showers Post Office (historical) | Showers Post Office (historical) | Clarion | 1545 | Strattanville |
| Fertigs Post Office (historical) | Fertigs Post Office (historical) | Venango | 1529 | Kossuth |
| Limestone Post Office (historical) | Limestone Post Office (historical) | Clarion | 1345 | Strattanville |
| Cranberry Post Office (historical) | Cranberry Post Office (historical) | Venango | 1430 | Cranberry |
| Pittsville Post Office (historical) | Pittsville Post Office (historical) | Venango | 1332 | Cranberry |
| Rockland Post Office (historical) | Rockland Post Office (historical) | Venango | 1470 | Cranberry |
| Cyclone Post Office (historical) | Cyclone Post Office (historical) | McKean | 2205 | Cyclone |
| Davis Gifford Post Office (historical) | Davis Gifford Post Office (historical) | McKean | 2221 | Cyclone |
| Torrance Post Office (historical) | Torrance Post Office (historical) | Westmoreland | 1175 | Bolivar |
| Smokeless Post Office (historical) | Smokeless Post Office (historical) | Indiana | 1109 | New Florence |
| Bedford Valley Post Office (historical) | Bedford Valley Post Office (historical) | Bedford | 1191 | Hyndman |
| Long Run Post Office (historical) | Long Run Post Office (historical) | Armstrong | 997 | Avonmore |
| New Mayville Post Office (historical) | New Mayville Post Office (historical) | Clarion | 1211 | New Bethlehem |
| Camp Hill Post Office (historical) | Camp Hill Post Office (historical) | Cumberland | 420 | Lemoyne |
| Shawnee on Delaware Post Office (historical) | Shawnee on Delaware Post Office (historical) | Monroe | 338 | Bushkill |
| Hessdale Post Office (historical) | Hessdale Post Office (historical) | Lancaster | 397 | Quarryville |
| Elm Post Office (historical) | Elm Post Office (historical) | Lancaster | 604 | Lititz |
| Mingoville Post Office (historical) | Mingoville Post Office (historical) | Centre | 1165 | Mingoville |
| Kinzers Post Office (historical) | Kinzers Post Office (historical) | Lancaster | 463 | Gap |
| Lucesco Post Office (historical) | Lucesco Post Office (historical) | Westmoreland | 797 | Freeport |
| Ingleside Post Office (historical) | Ingleside Post Office (historical) | Westmoreland | 860 | Freeport |
| Logansport Post Office (historical) | Logansport Post Office (historical) | Armstrong | 863 | Leechburg |
| Neale Post Office (historical) | Neale Post Office (historical) | Armstrong | 801 | Leechburg |
| Dime Post Office (historical) | Dime Post Office (historical) | Armstrong | 994 | Leechburg |
| Alum Rock Post Office (historical) | Alum Rock Post Office (historical) | Clarion | 1086 | Knox |
| Fredell Post Office (historical) | Fredell Post Office (historical) | Clarion | 879 | Rimersburg |
| Pollock Post Office (historical) | Pollock Post Office (historical) | Clarion | 1129 | Parker |
| Baldwin Post Office (historical) | Baldwin Post Office (historical) | Butler | 1398 | Parker |
| Birchrunville Post Office | Birchrunville Post Office | Chester | 305 | Pottstown |
| New Bloomfield Post Office (historical) | New Bloomfield Post Office (historical) | Perry | 673 | Newport |
| Sinnemahoning Post Office (historical) | Sinnemahoning Post Office (historical) | Cameron | 820 | Sinnemahoning |
| Round Hill Post Office | Round Hill Post Office | Adams | 594 | Hampton |
| Green Mount Post Office | Green Mount Post Office | Adams | 502 | Fairfield |
| Wenks Post Office | Wenks Post Office | Adams | 1115 | Arendtsville |
| Graefenburg Post Office | Graefenburg Post Office | Adams | 1024 | Caledonia Park |
| Center Road Station Post Office (historical) | Center Road Station Post Office (historical) | Crawford | 1145 | Linesville |
| Coon Island Post Office (historical) | Coon Island Post Office (historical) | Washington | 997 | Claysville |
| Epton Post Office (historical) | Epton Post Office (historical) | Allegheny | 938 | Glassport |
| Option Post Office (historical) | Option Post Office (historical) | Allegheny | 1083 | Glassport |
| Floreffe Post Office | Floreffe Post Office | Allegheny | 807 | Glassport |
| Eldenau Post Office (historical) | Eldenau Post Office (historical) | Butler | 938 | Evans City |
| Carr Post Office (historical) | Carr Post Office (historical) | Butler | 1043 | Evans City |
| West Bridgewater Post Office | West Bridgewater Post Office | Beaver | 1004 | Beaver |
| Gradatim Post Office (historical) | Gradatim Post Office (historical) | Washington | 928 | Canonsburg |
| Lawrence Post Office (historical) | Lawrence Post Office (historical) | Washington | 1024 | Bridgeville |
| Bower Hill Post Office (historical) | Bower Hill Post Office (historical) | Allegheny | 925 | Bridgeville |
| Borland Post Office (historical) | Borland Post Office (historical) | Allegheny | 863 | Bridgeville |
| Wesley Post Office (historical) | Wesley Post Office (historical) | Venango | 1434 | Barkeyville |
| Runville Post Office (historical) | Runville Post Office (historical) | Centre | 876 | Bellefonte |
| Eleanor Post Office (historical) | Eleanor Post Office (historical) | Jefferson | 1460 | Reynoldsville |
| Sandy Valley Post Office (historical) | Sandy Valley Post Office (historical) | Jefferson | 1411 | Hazen |
| Elk Lick Post Office (historical) | Elk Lick Post Office (historical) | Somerset | 2336 | Avilton |
| Sidman Post Office (historical) | Sidman Post Office (historical) | Cambria | 1631 | Geistown |
| Mount Pleasant Mills Post Office (historical) | Mount Pleasant Mills Post Office (historical) | Snyder | 571 | Richfield |
| Susquehanna Post Office (historical) | Susquehanna Post Office (historical) | Susquehanna | 945 | Susquehanna |
| Homer Post Office (historical) | Homer Post Office (historical) | Potter | 1844 | Austin |
| Weyant Post Office (historical) | Weyant Post Office (historical) | Bedford | 1263 | Alum Bank |
| Alumbank Post Office (historical) | Alumbank Post Office (historical) | Bedford | 1247 | Alum Bank |
| Felix Post Office (historical) | Felix Post Office (historical) | Bedford | 2362 | Ogletown |
| Smokerun Post Office (historical) | Smokerun Post Office (historical) | Clearfield | 1355 | Ramey |
| New Baltimore Post Office (historical) | New Baltimore Post Office (historical) | Somerset | 1427 | New Baltimore |
| Pine Hill Post Office (historical) | Pine Hill Post Office (historical) | Somerset | 2388 | Berlin |
| Mount Healthy Post Office (historical) | Mount Healthy Post Office (historical) | Somerset | 2129 | New Baltimore |
| Stony Creek Post Office (historical) | Stony Creek Post Office (historical) | Somerset | 2257 | Berlin |
| Sipesville Post Office (historical) | Sipesville Post Office (historical) | Somerset | 2067 | Somerset |
| Shanksville Post Office (historical) | Shanksville Post Office (historical) | Somerset | 2231 | Stoystown |
| Stoystown Post Office (historical) | Stoystown Post Office (historical) | Somerset | 1841 | Stoystown |
| Shade Furnace Post Office (historical) | Shade Furnace Post Office (historical) | Somerset | 2047 | Windber |
| Hooversville Post Office (historical) | Hooversville Post Office (historical) | Somerset | 1709 | Hooversville |
| Conner Post Office (historical) | Conner Post Office (historical) | Somerset | 1896 | Boswell |
| East Conemaugh Post Office (historical) | East Conemaugh Post Office (historical) | Cambria | 1152 | Johnstown |
| Elton Post Office (historical) | Elton Post Office (historical) | Cambria | 2054 | Geistown |
| Belsano Post Office (historical) | Belsano Post Office (historical) | Cambria | 1827 | Colver |
| Loretto Post Office (historical) | Loretto Post Office (historical) | Cambria | 1942 | Carrolltown |
| Ashville Post Office (historical) | Ashville Post Office (historical) | Cambria | 1647 | Ashville |
| Glasgow Post Office | Glasgow Post Office | Cambria | 1722 | Blandburg |
| Corsica Post Office (historical) | Corsica Post Office (historical) | Jefferson | 1591 | Corsica |
| Brinkerton Post Office (historical) | Brinkerton Post Office (historical) | Clarion | 1342 | New Bethlehem |
| Colemanville Post Office (historical) | Colemanville Post Office (historical) | Lancaster | 217 | Conestoga |
| Safe Harbor Post Office (historical) | Safe Harbor Post Office (historical) | Lancaster | 282 | Safe Harbor |
| Highville Post Office (historical) | Highville Post Office (historical) | Lancaster | 591 | Safe Harbor |
| Petersville Post Office (historical) | Petersville Post Office (historical) | Lancaster | 233 | Conestoga |
| Washington Manor Post Office (historical) | Washington Manor Post Office (historical) | Lancaster | 285 | Safe Harbor |
| Mountville Post Office (historical) | Mountville Post Office (historical) | Lancaster | 443 | Columbia East |
| Hempfield Post Office (historical) | Hempfield Post Office (historical) | Lancaster | 358 | Lancaster |
| Silver Spring Post Office (historical) | Silver Spring Post Office (historical) | Lancaster | 397 | Columbia East |
| Newtown Post Office (historical) | Newtown Post Office (historical) | Lancaster | 387 | Columbia East |
| Landisville Post Office (historical) | Landisville Post Office (historical) | Lancaster | 407 | Columbia East |
| Salunga Post Office (historical) | Salunga Post Office (historical) | Lancaster | 407 | Columbia East |
| Maytown Post Office (historical) | Maytown Post Office (historical) | Lancaster | 407 | Columbia West |
| Bainbridge Post Office (historical) | Bainbridge Post Office (historical) | Lancaster | 308 | York Haven |
| Falmouth Post Office (historical) | Falmouth Post Office (historical) | Lancaster | 358 | Middletown |
| Mastersonville Post Office (historical) | Mastersonville Post Office (historical) | Lancaster | 522 | Manheim |
| Old Line Post Office (historical) | Old Line Post Office (historical) | Lancaster | 591 | Manheim |
| Sporting Hill Post Office (historical) | Sporting Hill Post Office (historical) | Lancaster | 499 | Manheim |
| Mount Hope Post Office (historical) | Mount Hope Post Office (historical) | Lancaster | 525 | Manheim |
| White Oak Post Office (historical) | White Oak Post Office (historical) | Lancaster | 453 | Manheim |
| Penn Post Office (historical) | Penn Post Office (historical) | Lancaster | 604 | Lititz |
| Brickerville Post Office (historical) | Brickerville Post Office (historical) | Lancaster | 538 | Lititz |
| Brunersville Post Office (historical) | Brunersville Post Office (historical) | Lancaster | 522 | Lititz |
| Lititz Post Office (historical) | Lititz Post Office (historical) | Lancaster | 384 | Lititz |
| Rothsville Post Office (historical) | Rothsville Post Office (historical) | Lancaster | 492 | Lititz |
| Millway Post Office (historical) | Millway Post Office (historical) | Lancaster | 341 | Ephrata |
| Lincoln Post Office (historical) | Lincoln Post Office (historical) | Lancaster | 420 | Ephrata |
| Durlach Post Office (historical) | Durlach Post Office (historical) | Lancaster | 440 | Ephrata |
| Schoeneck Post Office (historical) | Schoeneck Post Office (historical) | Lancaster | 561 | Ephrata |
| Reinholdsville Post Office (historical) | Reinholdsville Post Office (historical) | Lancaster | 482 | Womelsdorf |
| Cocalico Post Office (historical) | Cocalico Post Office (historical) | Lancaster | 558 | Womelsdorf |
| Ephrata Post Office (historical) | Ephrata Post Office (historical) | Lancaster | 361 | Ephrata |
| Swartzville Post Office (historical) | Swartzville Post Office (historical) | Lancaster | 561 | Terre Hill |
| Bowmansville Post Office (historical) | Bowmansville Post Office (historical) | Lancaster | 433 | Terre Hill |
| Fairville Post Office (historical) | Fairville Post Office (historical) | Lancaster | 541 | Terre Hill |
| Muddy Creek Post Office (historical) | Muddy Creek Post Office (historical) | Lancaster | 459 | Terre Hill |
| Weavers Mill Post Office (historical) | Weavers Mill Post Office (historical) | Lancaster | 374 | Terre Hill |
| Elk Run Post Office (historical) | Elk Run Post Office (historical) | Tioga | 1381 | Marshlands |
| Pike Post Office (historical) | Pike Post Office (historical) | Bradford | 879 | Le Raysville |
| Herrick Post Office (historical) | Herrick Post Office (historical) | Bradford | 1289 | Rome |
| Lloyd Post Office (historical) | Lloyd Post Office (historical) | Tioga | 856 | Cedar Run |
| Grays Valley Post Office (historical) | Grays Valley Post Office (historical) | Tioga | 1503 | Roseville |
| Edsallville Post Office (historical) | Edsallville Post Office (historical) | Bradford | 1778 | Millerton |
| Old Hickory Post Office (historical) | Old Hickory Post Office (historical) | Bradford | 1781 | Millerton |
| Intercourse Post Office (historical) | Intercourse Post Office (historical) | Lancaster | 436 | New Holland |
| New Milltown Post Office (historical) | New Milltown Post Office (historical) | Lancaster | 407 | New Holland |
| Cains Post Office (historical) | Cains Post Office (historical) | Lancaster | 482 | Honey Brook |
| Pequea Post Office (historical) | Pequea Post Office (historical) | Lancaster | 433 | Honey Brook |
| South Hermitage Post Office (historical) | South Hermitage Post Office (historical) | Lancaster | 669 | Honey Brook |
| Cambridge Post Office (historical) | Cambridge Post Office (historical) | Chester | 718 | Honey Brook |
| Beartown Post Office (historical) | Beartown Post Office (historical) | Lancaster | 558 | Honey Brook |
| Churchtown Post Office (historical) | Churchtown Post Office (historical) | Lancaster | 564 | Morgantown |
| Goodville Post Office (historical) | Goodville Post Office (historical) | Lancaster | 535 | Terre Hill |
| Green Bank Post Office (historical) | Green Bank Post Office (historical) | Lancaster | 610 | New Holland |
| New Holland Post Office (historical) | New Holland Post Office (historical) | Lancaster | 492 | New Holland |
| Bellemont Post Office (historical) | Bellemont Post Office (historical) | Lancaster | 387 | Gap |
| Gordonville Post Office (historical) | Gordonville Post Office (historical) | Lancaster | 400 | Leola |
| Bareville Post Office (historical) | Bareville Post Office (historical) | Lancaster | 469 | Leola |
| Blue Ball Post Office (historical) | Blue Ball Post Office (historical) | Lancaster | 440 | New Holland |
| Farmersville Post Office (historical) | Farmersville Post Office (historical) | Lancaster | 364 | Ephrata |
| Enterprise Post Office (historical) | Enterprise Post Office (historical) | Lancaster | 358 | Leola |
| Soudersburg Post Office (historical) | Soudersburg Post Office (historical) | Lancaster | 377 | Leola |
| Wheatland Mills Post Office (historical) | Wheatland Mills Post Office (historical) | Lancaster | 354 | Quarryville |
| Camargo Post Office (historical) | Camargo Post Office (historical) | Lancaster | 436 | Quarryville |
| Quarryville Post Office (historical) | Quarryville Post Office (historical) | Lancaster | 512 | Quarryville |
| New Providence Post Office (historical) | New Providence Post Office (historical) | Lancaster | 384 | Quarryville |
| Martinsville Post Office (historical) | Martinsville Post Office (historical) | Lancaster | 397 | Quarryville |
| Lampeter Post Office (historical) | Lampeter Post Office (historical) | Lancaster | 407 | Quarryville |
| Fertility Post Office (historical) | Fertility Post Office (historical) | Lancaster | 308 | Leola |
| West Earl Post Office (historical) | West Earl Post Office (historical) | Lancaster | 367 | Leola |
| Oregon Post Office (historical) | Oregon Post Office (historical) | Lancaster | 410 | Leola |
| Manheim Post Office (historical) | Manheim Post Office (historical) | Lancaster | 400 | Lancaster |
| Binkleys Bridge Post Office (historical) | Binkleys Bridge Post Office (historical) | Lancaster | 285 | Lancaster |
| East Hempfield Post Office (historical) | East Hempfield Post Office (historical) | Lancaster | 371 | Lancaster |
| Willow Street Post Office (historical) | Willow Street Post Office (historical) | Lancaster | 482 | Conestoga |
| New Danville Post Office (historical) | New Danville Post Office (historical) | Lancaster | 404 | Conestoga |
| Conestoga Post Office (historical) | Conestoga Post Office (historical) | Lancaster | 495 | Conestoga |
| Marticville Post Office (historical) | Marticville Post Office (historical) | Lancaster | 397 | Conestoga |
| Rawlinsville Post Office (historical) | Rawlinsville Post Office (historical) | Lancaster | 886 | Conestoga |
| Bethesda Post Office (historical) | Bethesda Post Office (historical) | Lancaster | 659 | Holtwood |
| Liberty Square Post Office (historical) | Liberty Square Post Office (historical) | Lancaster | 630 | Holtwood |
| Buck Post Office (historical) | Buck Post Office (historical) | Lancaster | 709 | Wakefield |
| Glonmel Post Office (historical) | Glonmel Post Office (historical) | Lancaster | 505 | Gap |
| Bartville Post Office (historical) | Bartville Post Office (historical) | Lancaster | 682 | Gap |
| Octoraro Post Office (historical) | Octoraro Post Office (historical) | Lancaster | 322 | Kirkwood |
| Puseyville Post Office (historical) | Puseyville Post Office (historical) | Lancaster | 341 | Kirkwood |
| Mechanics Grove Post Office (historical) | Mechanics Grove Post Office (historical) | Lancaster | 636 | Wakefield |
| Chestnut Level Post Office (historical) | Chestnut Level Post Office (historical) | Lancaster | 561 | Wakefield |
| Fulton House Post Office (historical) | Fulton House Post Office (historical) | Lancaster | 400 | Wakefield |
| Goshen Post Office (historical) | Goshen Post Office (historical) | Lancaster | 374 | Wakefield |
| Colerain Post Office (historical) | Colerain Post Office (historical) | Lancaster | 463 | Kirkwood |
| Kirkwood Post Office (historical) | Kirkwood Post Office (historical) | Lancaster | 518 | Kirkwood |
| Oak Shade Post Office (historical) | Oak Shade Post Office (historical) | Lancaster | 476 | Kirkwood |
| Oak Hill Post Office (historical) | Oak Hill Post Office (historical) | Lancaster | 466 | Kirkwood |
| Little Britain Post Office (historical) | Little Britain Post Office (historical) | Lancaster | 453 | Kirkwood |
| Wakefield Post Office (historical) | Wakefield Post Office (historical) | Lancaster | 390 | Wakefield |
| Peters Creek Post Office (historical) | Peters Creek Post Office (historical) | Lancaster | 387 | Conowingo Dam |
| Kirks Mills Post Office (historical) | Kirks Mills Post Office (historical) | Lancaster | 302 | Kirkwood |
| New Texas Post Office (historical) | New Texas Post Office (historical) | Lancaster | 367 | Conowingo Dam |
| Pleasant Grove Post Office (historical) | Pleasant Grove Post Office (historical) | Lancaster | 361 | Conowingo Dam |
| Wittenberg Post Office (historical) | Wittenberg Post Office (historical) | Somerset | 2559 | Wittenberg |
| Millersville Post Office (historical) | Millersville Post Office (historical) | Lancaster | 325 | Conestoga |
| Summit Post Office (historical) | Summit Post Office (historical) | Somerset | 2024 | Meyersdale |
| Addison Post Office (historical) | Addison Post Office (historical) | Somerset | 2044 | Accident |
| Reamstown Post Office (historical) | Reamstown Post Office (historical) | Lancaster | 381 | Ephrata |
| Hinkletown Post Office (historical) | Hinkletown Post Office (historical) | Lancaster | 371 | Ephrata |
| Sherrat Post Office (historical) | Sherrat Post Office (historical) | Armstrong | 1250 | East Brady |
| Adams Post Office (historical) | Adams Post Office (historical) | Armstrong | 1309 | Chicora |
| Barnard Post Office (historical) | Barnard Post Office (historical) | Armstrong | 1184 | Plumville |
| Echo Post Office (historical) | Echo Post Office (historical) | Armstrong | 1125 | Rural Valley |
| Blanket Hill Post Office (historical) | Blanket Hill Post Office (historical) | Armstrong | 1417 | Mosgrove |
| Wrightsdale Post Office (historical) | Wrightsdale Post Office (historical) | Lancaster | 446 | Wakefield |
| Christiana Post Office (historical) | Christiana Post Office (historical) | Lancaster | 476 | Parkesburg |
| Emilie Post Office (historical) | Emilie Post Office (historical) | Bucks | 108 | Trenton West |
| Haverford Post Office (historical) | Haverford Post Office (historical) | Delaware | 302 | Lansdowne |
| Haverford Post Office (historical) | Haverford Post Office (historical) | Delaware | 302 | Lansdowne |
| Radnor Post Office (historical) | Radnor Post Office (historical) | Delaware | 335 | Norristown |
| Willistown Post Office (historical) | Willistown Post Office (historical) | Chester | 354 | Media |
| Warren Tavern Post Office (historical) | Warren Tavern Post Office (historical) | Chester | 249 | Malvern |
| Greenland Post Office (historical) | Greenland Post Office (historical) | Lancaster | 358 | Leola |
| Isabella Post Office (historical) | Isabella Post Office (historical) | Chester | 646 | Wagontown |
| Barnestown Post Office (historical) | Barnestown Post Office (historical) | Chester | 479 | Wagontown |
| Pughtown Post Office (historical) | Pughtown Post Office (historical) | Chester | 282 | Pottstown |
| Coventry Post Office (historical) | Coventry Post Office (historical) | Chester | 318 | Pottstown |
| Vincent Post Office (historical) | Vincent Post Office (historical) | Chester | 361 | Phoenixville |
| Schuylkill Post Office (historical) | Schuylkill Post Office (historical) | Chester | 151 | Malvern |
| Ivy Mills Post Office (historical) | Ivy Mills Post Office (historical) | Delaware | 384 | Media |
| Cass Post Office (historical) | Cass Post Office (historical) | Venango | 1194 | Cranberry |
| President Post Office (historical) | President Post Office (historical) | Venango | 1047 | President |
| Plum Post Office (historical) | Plum Post Office (historical) | Venango | 1486 | Dempseytown |
| Wallaceville Post Office (historical) | Wallaceville Post Office (historical) | Venango | 1243 | Dempseytown |
| Sunville Post Office (historical) | Sunville Post Office (historical) | Venango | 1434 | Dempseytown |
| Polk Post Office (historical) | Polk Post Office (historical) | Venango | 1063 | Polk |
| Utica Post Office (historical) | Utica Post Office (historical) | Venango | 1043 | Utica |
| Canoe Creek Post Office (historical) | Canoe Creek Post Office (historical) | Blair | 922 | Frankstown |
| Strabane Post Office (historical) | Strabane Post Office (historical) | Washington | 1263 | Washington East |
| Sparta Post Office (historical) | Sparta Post Office (historical) | Washington | 1043 | Prosperity |
| Pickering Post Office (historical) | Pickering Post Office (historical) | Chester | 138 | Malvern |
| Vogansville Post Office (historical) | Vogansville Post Office (historical) | Lancaster | 410 | Leola |
| Salisbury Post Office (historical) | Salisbury Post Office (historical) | Lancaster | 489 | New Holland |
| Paradise Post Office (historical) | Paradise Post Office (historical) | Lancaster | 364 | Leola |
| Smithville Post Office (historical) | Smithville Post Office (historical) | Lancaster | 335 | Conestoga |
| Van Buren Post Office (historical) | Van Buren Post Office (historical) | Washington | 1263 | Prosperity |
| Strabane Post Office (historical) | Strabane Post Office (historical) | Washington | 1099 | Amity |
| Beans Cove Post Office (historical) | Beans Cove Post Office (historical) | Bedford | 1112 | Beans Cove |
| Yellow Creek Post Office (historical) | Yellow Creek Post Office (historical) | Bedford | 945 | Hopewell |
| Spring Meadow Post Office (historical) | Spring Meadow Post Office (historical) | Bedford | 1155 | Alum Bank |
| West End Post Office (historical) | West End Post Office (historical) | Bedford | 1804 | Buffalo Mills |
| Andalusia Post Office (historical) | Andalusia Post Office (historical) | Bucks | 59 | Beverly |
| Argus Post Office (historical) | Argus Post Office (historical) | Bucks | 495 | Perkiomenville |
| Bedminster Post Office (historical) | Bedminster Post Office (historical) | Bucks | 427 | Bedminster |
| Blooming Glen Post Office (historical) | Blooming Glen Post Office (historical) | Bucks | 410 | Doylestown |
| Bridge Valley Post Office (historical) | Bridge Valley Post Office (historical) | Bucks | 262 | Buckingham |
| Bridgewater Post Office (historical) | Bridgewater Post Office (historical) | Bucks | 72 | Beverly |
| Bristol Post Office (historical) | Bristol Post Office (historical) | Bucks | 23 | Bristol |
| Brownsburg Post Office (historical) | Brownsburg Post Office (historical) | Bucks | 75 | Lambertville |
| Buckingham Valley Post Office (historical) | Buckingham Valley Post Office (historical) | Bucks | 220 | Buckingham |
| Bucksville Post Office (historical) | Bucksville Post Office (historical) | Bucks | 535 | Riegelsville |
| Allensville Post Office (historical) | Allensville Post Office (historical) | Mifflin | 984 | Allensville |
| Black Horse Post Office (historical) | Black Horse Post Office (historical) | Chester | 696 | Parkesburg |
| Birchardsville Post Office (historical) | Birchardsville Post Office (historical) | Susquehanna | 1050 | Lawton |
| Bethel Post Office (historical) | Bethel Post Office (historical) | Berks | 568 | Bethel |
| Carversville Post Office (historical) | Carversville Post Office (historical) | Bucks | 226 | Lumberville |
| Chalfont Post Office (historical) | Chalfont Post Office (historical) | Bucks | 282 | Doylestown |
| Churchville Post Office (historical) | Churchville Post Office (historical) | Bucks | 203 | Hatboro |
| Danboro Post Office (historical) | Danboro Post Office (historical) | Bucks | 495 | Doylestown |
| Cornwells Heights Post Office (historical) | Cornwells Heights Post Office (historical) | Bucks | 69 | Beverly |
| Michener Post Office (historical) | Michener Post Office (historical) | Bucks | 351 | Lumberville |
| Croydon Post Office (historical) | Croydon Post Office (historical) | Bucks | 26 | Beverly |
| Dolington Post Office (historical) | Dolington Post Office (historical) | Bucks | 259 | Lambertville |
| Doylestown Post Office (historical) | Doylestown Post Office (historical) | Bucks | 417 | Doylestown |
| Durham Post Office (historical) | Durham Post Office (historical) | Bucks | 233 | Riegelsville |
| Feasterville Post Office (historical) | Feasterville Post Office (historical) | Bucks | 220 | Hatboro |
| Farm School Post Office (historical) | Farm School Post Office (historical) | Bucks | 322 | Doylestown |
| Fallsington Post Office (historical) | Fallsington Post Office (historical) | Bucks | 52 | Trenton West |
| Ferndale Post Office (historical) | Ferndale Post Office (historical) | Bucks | 299 | Riegelsville |
| Dublin Post Office (historical) | Dublin Post Office (historical) | Bucks | 574 | Doylestown |
| Bursonville Post Office (historical) | Bursonville Post Office (historical) | Bucks | 594 | Riegelsville |
| Rushland Post Office (historical) | Rushland Post Office (historical) | Bucks | 157 | Buckingham |
| Sellersville Post Office (historical) | Sellersville Post Office (historical) | Bucks | 344 | Telford |
| Shelly Post Office (historical) | Shelly Post Office (historical) | Bucks | 581 | Quakertown |
| Wrightstown Post Office (historical) | Wrightstown Post Office (historical) | Bucks | 364 | Lambertville |
| Wycombe Post Office (historical) | Wycombe Post Office (historical) | Bucks | 190 | Buckingham |
| Yardley Post Office (historical) | Yardley Post Office (historical) | Bucks | 72 | Trenton West |
| Zion Hill Post Office (historical) | Zion Hill Post Office (historical) | Bucks | 666 | Milford Square |
| Riegelsville Post Office (historical) | Riegelsville Post Office (historical) | Bucks | 157 | Riegelsville |
| Richlandtown Post Office (historical) | Richlandtown Post Office (historical) | Bucks | 538 | Quakertown |
| Revere Post Office (historical) | Revere Post Office (historical) | Bucks | 502 | Riegelsville |
| Richboro Post Office (historical) | Richboro Post Office (historical) | Bucks | 269 | Hatboro |
| Point Pleasent Post Office (historical) | Point Pleasent Post Office (historical) | Bucks | 98 | Lumberville |
| Pleasent Valley Post Office (historical) | Pleasent Valley Post Office (historical) | Bucks | 472 | Hellertown |
| Pipersville Post Office (historical) | Pipersville Post Office (historical) | Bucks | 436 | Bedminster |
| Ackley Station Post Office (historical) | Ackley Station Post Office (historical) | Warren | 1240 | Russell |
| Post Office | Post Office | Lycoming | 472 | Montoursville South |
| Tannery Post Office (historical) | Tannery Post Office (historical) | Indiana | Unknown | |
| Bart Post Office | Bart Post Office | Lancaster | 673 | Gap |
| Hellam Post Office | Hellam Post Office | York | 367 | Columbia West |
| Harwood Mines Post Office | Harwood Mines Post Office | Luzerne | 1680 | Conyngham |
| Shaft Post Office | Shaft Post Office | Schuylkill | 1102 | Shenandoah |
| Greene Post Office | Greene Post Office | Lancaster | 443 | Wakefield |
| Etters Post Office | Etters Post Office | York | 318 | Steelton |
| Smithmill Post Office | Smithmill Post Office | Clearfield | 1545 | Ramey |
| Codorus Post Office | Codorus Post Office | York | 666 | Seven Valleys |
| Morea Colliery Post Office | Morea Colliery Post Office | Schuylkill | 1499 | Shenandoah |
| York New Salem Post Office | York New Salem Post Office | York | 607 | West York |
| LaJose Post Office | LaJose Post Office | Clearfield | 1296 | Westover |
| Tyre Post Office | Tyre Post Office | Allegheny | 1099 | Clinton |
| Sugarloaf Post Office | Sugarloaf Post Office | Luzerne | 1381 | Conyngham |
| Cuddy Post Office | Cuddy Post Office | Allegheny | 889 | Canonsburg |
| Peach Botton Post Office | Peach Botton Post Office | Lancaster | 390 | Wakefield |
| Wilburton Post Office | Wilburton Post Office | Columbia | 1529 | Mount Carmel |
| Greenstone Post Office | Greenstone Post Office | Adams | 1220 | Iron Springs |
| McKean Post Office | McKean Post Office | Erie | 1142 | Edinboro North |
| Uhlersville Post Office (historical) | Uhlersville Post Office (historical) | Northampton | 148 | Easton |
| Sheshequin Post Office | Sheshequin Post Office | Bradford | Unknown | |
| Sharps Mills Post Office (historical) | Sharps Mills Post Office (historical) | Indiana | Unknown | |
| East Sharpsburg Post Office (historical) | East Sharpsburg Post Office (historical) | Blair | 1286 | Martinsburg |
| Kent Post Office | Kent Post Office | Indiana | 1093 | McIntyre |
| Clune Post Office | Clune Post Office | Indiana | 1096 | McIntyre |
| De Lancey Post Office | De Lancey Post Office | Jefferson | 1430 | Punxsutawney |
| Buena Vista Spring Post Office (historical) | Buena Vista Spring Post Office (historical) | Franklin | 1309 | Smithsburg |
| Millers Station Post Office (historical) | Millers Station Post Office (historical) | Crawford | Unknown | |
| Avis Post Office | Avis Post Office | Clinton | 594 | Jersey Shore |
| Walker Lake Post Office (historical) | Walker Lake Post Office (historical) | Pike | 1237 | Shohola |
| Twin Lakes Post Office (historical) | Twin Lakes Post Office (historical) | Pike | 1384 | Shohola |
| Tuscarora Summit Post Office (historical) | Tuscarora Summit Post Office (historical) | Franklin | 2126 | McConnellsburg |
| Sulphur Springs Post Office (historical) | Sulphur Springs Post Office (historical) | Bedford | 1348 | Rainsburg |
| Stoddartsville Post Office (historical) | Stoddartsville Post Office (historical) | Luzerne | 1506 | Pleasant View Summit |
| Shawanese Post Office (historical) | Shawanese Post Office (historical) | Luzerne | 1240 | Harveys Lake |
| Porters Lake Post Office (historical) | Porters Lake Post Office (historical) | Pike | Unknown | |
| Pocono Manor Post Office (historical) | Pocono Manor Post Office (historical) | Monroe | 1703 | Mount Pocono |
| Pen Mar Post Office (historical) | Pen Mar Post Office (historical) | Franklin | 1240 | Smithsburg |
| Pecks Pond Post Office (historical) | Pecks Pond Post Office (historical) | Pike | 1371 | Pecks Pond |
| Mount Gretna Post Office (historical) | Mount Gretna Post Office (historical) | Lebanon | 673 | Manheim |
| Lake Harmony Post Office (historical) | Lake Harmony Post Office (historical) | Carbon | 1873 | Blakeslee |
| Lake Carey Post Office (historical) | Lake Carey Post Office (historical) | Wyoming | 958 | Tunkhannock |
| Henrys Bend Post Office (historical) | Henrys Bend Post Office (historical) | Venango | 1043 | President |
| Glen Summit Springs Post Office (historical) | Glen Summit Springs Post Office (historical) | Luzerne | 1634 | Wilkes-Barre East |
| Glen Summit Post Office (historical) | Glen Summit Post Office (historical) | Luzerne | 1841 | Wilkes-Barre East |
| Forest Park Post Office (historical) | Forest Park Post Office (historical) | Pike | 1138 | Twelvemile Pond |
| Echo Lake Post Office (historical) | Echo Lake Post Office (historical) | Monroe | 528 | Bushkill |
| Eagles Mere Chautauqua Post Office (historical) | Eagles Mere Chautauqua Post Office (historical) | Sullivan | 2060 | Eagles Mere |
| Eaglehurst Post Office (historical) | Eaglehurst Post Office (historical) | Erie | 712 | Swanville |
| Doubling Gap Post Office (historical) | Doubling Gap Post Office (historical) | Cumberland | 833 | Andersonburg |
| Crestmont Post Office (historical) | Crestmont Post Office (historical) | Sullivan | 2133 | Eagles Mere |
| Conneaut Lake Post Office (historical) | Conneaut Lake Post Office (historical) | Crawford | 1083 | Conneaut Lake |
| Chapman Lake Post Office (historical) | Chapman Lake Post Office (historical) | Lackawanna | 1614 | Carbondale |
| Lake Canadohta Post Office (historical) | Lake Canadohta Post Office (historical) | Crawford | 1391 | Lake Canadohta |
| Buena Vista Post Office (historical) | Buena Vista Post Office (historical) | Allegheny | 764 | McKeesport |
| Buck Hill Falls Post Office (historical) | Buck Hill Falls Post Office (historical) | Monroe | 1309 | Buck Hill Falls |
| Bedford Springs Post Office (historical) | Bedford Springs Post Office (historical) | Bedford | 1106 | Bedford |
| Acahela Post Office (historical) | Acahela Post Office (historical) | Monroe | Unknown | |
| Eagles Lake Post Office (historical) | Eagles Lake Post Office (historical) | Sullivan | Unknown | |
| Exposition Post Office (historical) | Exposition Post Office (historical) | Crawford | Unknown | |
| Forest Post Office (historical) | Forest Post Office (historical) | Pike | Unknown | |
| Highland Lake Post Office (historical) | Highland Lake Post Office (historical) | Lycoming | Unknown | |
| Lake Sheridan Post Office (historical) | Lake Sheridan Post Office (historical) | Lackawanna | Unknown | |
| Lotell Post Office (historical) | Lotell Post Office (historical) | Lebanon | Unknown | |
| Naomipines Post Office (historical) | Naomipines Post Office (historical) | Monroe | Unknown | |
| Oakland Beach Post Office (historical) | Oakland Beach Post Office (historical) | Crawford | Unknown | |
| Paradise Falls Post Office (historical) | Paradise Falls Post Office (historical) | Monroe | Unknown | |
| Ridgeview Park Post Office (historical) | Ridgeview Park Post Office (historical) | Westmoreland | Unknown | |
| Rossfarm Post Office (historical) | Rossfarm Post Office (historical) | Juniata | Unknown | |
| Teedyuskung Post Office (historical) | Teedyuskung Post Office (historical) | Pike | Unknown | |
| Waldameer Park Post Office (historical) | Waldameer Park Post Office (historical) | Erie | Unknown | |
| Westline Post Office (historical) | Westline Post Office (historical) | McKean | Unknown | |
| Walters Park Post Office (historical) | Walters Park Post Office (historical) | Berks | Unknown | |
| Westcolang Post Office (historical) | Westcolang Post Office (historical) | Pike | Unknown | |
| Osceola Post Office | Osceola Post Office | Tioga | 1161 | Elkland |
| Elkland Post Office | Elkland Post Office | Tioga | 1132 | Elkland |
| Jamison Post Office | Jamison Post Office | Bucks | 322 | Buckingham |
| Rushland Post Office | Rushland Post Office | Bucks | 154 | Buckingham |
| Pineville Post Office | Pineville Post Office | Bucks | 239 | Buckingham |
| Forest Grove Post Office | Forest Grove Post Office | Bucks | 289 | Buckingham |
| Mechanicsville Post Office | Mechanicsville Post Office | Bucks | 443 | Buckingham |
| Lahaska Post Office | Lahaska Post Office | Bucks | 315 | Buckingham |
| Plumsteadville Post Office | Plumsteadville Post Office | Bucks | 587 | Bedminster |
| Ottsville Post Office | Ottsville Post Office | Bucks | 495 | Bedminster |
| Ono Post Office | Ono Post Office | Lebanon | 505 | Indiantown Gap |
| West Hickory Post Office | West Hickory Post Office | Forest | 1089 | West Hickory |
| Endeavor Post Office | Endeavor Post Office | Forest | 1102 | West Hickory |
| Blue Bell Post Office | Blue Bell Post Office | Montgomery | 269 | Lansdale |
| Boulevard Station Post Office | Boulevard Station Post Office | Philadelphia | 79 | Frankford |
| Brandamore Post Office | Brandamore Post Office | Chester | 604 | Wagontown |
| Bridesburg Post Office | Bridesburg Post Office | Philadelphia | 20 | Camden |
| Brookhaven Post Office | Brookhaven Post Office | Delaware | 102 | Marcus Hook |
| Broomall Post Office | Broomall Post Office | Delaware | 361 | Lansdowne |
| Bryn Athyn Post Office | Bryn Athyn Post Office | Montgomery | 128 | Hatboro |
| Clifton Heights Post Office | Clifton Heights Post Office | Delaware | 144 | Lansdowne |
| Collingdale Post Office | Collingdale Post Office | Delaware | 102 | Lansdowne |
| Colmar Post Office | Colmar Post Office | Montgomery | 315 | Telford |
| Bustleton Station Post Office | Bustleton Station Post Office | Philadelphia | 171 | Frankford |
| Castor Avenue Post Office | Castor Avenue Post Office | Philadelphia | 112 | Frankford |
| Cedars Post Office | Cedars Post Office | Montgomery | 266 | Lansdale |
| Chadds Ford Post Office | Chadds Ford Post Office | Delaware | 164 | Wilmington North |
| Chalfont Post Office | Chalfont Post Office | Bucks | 312 | Doylestown |
| Chester Heights Post Office | Chester Heights Post Office | Delaware | 230 | Media |
| Chester Springs Post Office | Chester Springs Post Office | Chester | 302 | Malvern |
| Chestnut Hill Station Post Office | Chestnut Hill Station Post Office | Philadelphia | 423 | Germantown |
| Cheyney Post Office | Cheyney Post Office | Delaware | 246 | West Chester |
| Ambler Post Office | Ambler Post Office | Montgomery | 187 | Ambler |
| Aston Post Office | Aston Post Office | Delaware | 180 | Marcus Hook |
| Bala Cynwyd Post Office | Bala Cynwyd Post Office | Montgomery | 272 | Germantown |
| Gwynedd Post Office | Gwynedd Post Office | Montgomery | 423 | Lansdale |
| Gwynedd Valley Post Office | Gwynedd Valley Post Office | Montgomery | 276 | Lansdale |
| Harleysville Post Office | Harleysville Post Office | Montgomery | 266 | Perkiomenville |
| Harmonville Branch Post Office | Harmonville Branch Post Office | Montgomery | 161 | Norristown |
| Hatboro Post Office | Hatboro Post Office | Montgomery | 236 | Hatboro |
| Haverford Post Office | Haverford Post Office | Montgomery | 358 | Norristown |
| Havertown Post Office | Havertown Post Office | Delaware | 161 | Lansdowne |
| Holmes Post Office | Holmes Post Office | Delaware | 102 | Lansdowne |
| Holmesburg Finance Station Post Office | Holmesburg Finance Station Post Office | Philadelphia | 59 | Frankford |
| Holmesburg Post Office | Holmesburg Post Office | Philadelphia | 72 | Beverly |
| Horsham Post Office | Horsham Post Office | Montgomery | 266 | Ambler |
| Concordville Post Office | Concordville Post Office | Delaware | 413 | West Chester |
| Conshohocken Post Office | Conshohocken Post Office | Montgomery | 180 | Norristown |
| Cornwell Heights Post Office | Cornwell Heights Post Office | Bucks | 59 | Beverly |
| Creamery Post Office | Creamery Post Office | Montgomery | 259 | Collegeville |
| Crum Lynne Post Office | Crum Lynne Post Office | Delaware | 39 | Bridgeport |
| Devault Post Office | Devault Post Office | Chester | 420 | Malvern |
| Devon Post Office | Devon Post Office | Chester | 456 | Valley Forge |
| Doylestown Boro Post Office | Doylestown Boro Post Office | Bucks | 354 | Doylestown |
| Dresher Post Office | Dresher Post Office | Montgomery | 200 | Ambler |
| Drexel Hill Post Office | Drexel Hill Post Office | Delaware | 207 | Lansdowne |
| Earlington Post Office | Earlington Post Office | Montgomery | 374 | Telford |
| East Germantown Station Post Office | East Germantown Station Post Office | Philadelphia | 246 | Germantown |
| Elkins Park Post Office | Elkins Park Post Office | Montgomery | 190 | Germantown |
| Elwyn Post Office | Elwyn Post Office | Delaware | 279 | Media |
| Essington Post Office | Essington Post Office | Delaware | 23 | Bridgeport |
| Fairview Village Post Office | Fairview Village Post Office | Montgomery | 472 | Collegeville |
| Feasterville Post Office | Feasterville Post Office | Bucks | 187 | Langhorne |
| Flourtown Post Office | Flourtown Post Office | Montgomery | 167 | Germantown |
| Folcroft Post Office | Folcroft Post Office | Delaware | 69 | Lansdowne |
| Fox Chase Station Post Office | Fox Chase Station Post Office | Philadelphia | 148 | Frankford |
| Franklin Center Post Office | Franklin Center Post Office | Delaware | 246 | Media |
| Germantown Station Post Office | Germantown Station Post Office | Philadelphia | 233 | Germantown |
| Gladwyne Post Office | Gladwyne Post Office | Montgomery | 384 | Norristown |
| Glen Mills Post Office | Glen Mills Post Office | Delaware | 249 | Media |
| Glenmoore Post Office | Glenmoore Post Office | Chester | 469 | Wagontown |
| Glenolden Post Office | Glenolden Post Office | Delaware | 89 | Lansdowne |
| Glenside Post Office | Glenside Post Office | Montgomery | 236 | Germantown |
| Gradyville Post Office | Gradyville Post Office | Delaware | 436 | Media |
| Green Lane Post Office | Green Lane Post Office | Montgomery | 223 | Perkiomenville |
| Lenni Post Office | Lenni Post Office | Delaware | 259 | Media |
| Limerick Branch Post Office | Limerick Branch Post Office | Montgomery | 292 | Phoenixville |
| Line Lexington Post Office | Line Lexington Post Office | Bucks | 338 | Telford |
| Logan Station Post Office | Logan Station Post Office | Philadelphia | 197 | Germantown |
| Lyndell Post Office | Lyndell Post Office | Chester | 328 | Downingtown |
| Mainland Post Office | Mainland Post Office | Montgomery | 233 | Telford |
| Manayunk Station Post Office | Manayunk Station Post Office | Philadelphia | 52 | Germantown |
| Manoa Post Office | Manoa Post Office | Delaware | 308 | Lansdowne |
| Maple Glen Branch Post Office | Maple Glen Branch Post Office | Montgomery | 377 | Ambler |
| Marcus Hook Post Office | Marcus Hook Post Office | Delaware | 33 | Marcus Hook |
| Market Square Station Post Office | Market Square Station Post Office | Philadelphia | 361 | Germantown |
| Mayfair Post Office | Mayfair Post Office | Philadelphia | 95 | Frankford |
| Newtown Square Post Office | Newtown Square Post Office | Delaware | 404 | Media |
| Nicetown Post Office | Nicetown Post Office | Philadelphia | 131 | Germantown |
| Norristown Post Office | Norristown Post Office | Montgomery | 128 | Norristown |
| North Philadelphia West Post Office | North Philadelphia West Post Office | Philadelphia | 105 | Philadelphia |
| North Wales Post Office | North Wales Post Office | Montgomery | 367 | Lansdale |
| Media Post Office | Media Post Office | Delaware | 282 | Media |
| Merion Post Office | Merion Post Office | Montgomery | 243 | Lansdowne |
| Middle City Post Office | Middle City Post Office | Philadelphia | 46 | Philadelphia |
| Miquon Post Office | Miquon Post Office | Montgomery | 95 | Norristown |
| Mont Clare Post Office | Mont Clare Post Office | Montgomery | 102 | Phoenixville |
| Montgomeryville Post Office | Montgomeryville Post Office | Montgomery | 449 | Doylestown |
| Mount Airy Station Post Office | Mount Airy Station Post Office | Philadelphia | 367 | Germantown |
| Moylan Post Office | Moylan Post Office | Delaware | 217 | Media |
| Narberth Post Office | Narberth Post Office | Montgomery | 285 | Norristown |
| Hunting Park Station Post Office | Hunting Park Station Post Office | Philadelphia | 82 | Germantown |
| Huntingdon Valley Post Office | Huntingdon Valley Post Office | Montgomery | 135 | Frankford |
| Jenkintown Post Office | Jenkintown Post Office | Montgomery | 331 | Germantown |
| John Wanamaker Post Office | John Wanamaker Post Office | Philadelphia | 46 | Philadelphia |
| King of Prussia Post Office | King of Prussia Post Office | Montgomery | 203 | Norristown |
| Kingsessing Post Office | Kingsessing Post Office | Philadelphia | 92 | Philadelphia |
| Kulpsville Post Office | Kulpsville Post Office | Montgomery | 295 | Lansdale |
| Lansdale Post Office | Lansdale Post Office | Montgomery | 364 | Lansdale |
| Lansdowne Post Office | Lansdowne Post Office | Delaware | 112 | Lansdowne |
| Layfette Hill Post Office | Layfette Hill Post Office | Montgomery | 210 | Norristown |
| Lederach Post Office | Lederach Post Office | Montgomery | 364 | Perkiomenville |
| Salford Post Office | Salford Post Office | Montgomery | 190 | Perkiomenville |
| Salfordville Post Office | Salfordville Post Office | Montgomery | 367 | Perkiomenville |
| Sanatoga Branch Post Office | Sanatoga Branch Post Office | Montgomery | 236 | Phoenixville |
| Schuylkill Post Office | Schuylkill Post Office | Philadelphia | 43 | Philadelphia |
| Schwenksville Branch Post Office | Schwenksville Branch Post Office | Montgomery | 157 | Perkiomenville |
| Sellersville Post Office | Sellersville Post Office | Bucks | 325 | Telford |
| Sharon Hill Post Office | Sharon Hill Post Office | Delaware | 108 | Lansdowne |
| Skippack Post Office | Skippack Post Office | Montgomery | 187 | Collegeville |
| Souderton Post Office | Souderton Post Office | Montgomery | 430 | Telford |
| Olney Station Post Office | Olney Station Post Office | Philadelphia | 138 | Frankford |
| Oreland Post Office | Oreland Post Office | Montgomery | 220 | Germantown |
| Overbrook Station Post Office | Overbrook Station Post Office | Philadelphia | 157 | Philadelphia |
| Paoli Post Office | Paoli Post Office | Chester | 525 | Valley Forge |
| Parker Ford Post Office | Parker Ford Post Office | Chester | 164 | Phoenixville |
| Paschall Post Office | Paschall Post Office | Philadelphia | 30 | Philadelphia |
| Perkiomenville Post Office | Perkiomenville Post Office | Montgomery | 269 | Perkiomenville |
| Philadelphia Main Post Office | Philadelphia Main Post Office | Philadelphia | 39 | Philadelphia |
| Phoenixville Post Office | Phoenixville Post Office | Chester | 121 | Phoenixville |
| Pilgrim Gardens Post Office | Pilgrim Gardens Post Office | Delaware | 210 | Lansdowne |
| Plymouth Meeting Post Office | Plymouth Meeting Post Office | Montgomery | 180 | Norristown |
| Pocopson Post Office | Pocopson Post Office | Chester | 184 | Unionville |
| Point Breeze Post Office | Point Breeze Post Office | Philadelphia | 33 | Philadelphia |
| Prospect Park Post Office | Prospect Park Post Office | Delaware | 89 | Lansdowne |
| Ridley Park Post Office | Ridley Park Post Office | Delaware | 95 | Lansdowne |
| Roxborough Post Office | Roxborough Post Office | Philadelphia | 292 | Germantown |
| Roxborough Station Post Office | Roxborough Station Post Office | Philadelphia | 276 | Germantown |
| Royersford Post Office | Royersford Post Office | Montgomery | 203 | Phoenixville |
| Rydal Branch Post Office | Rydal Branch Post Office | Montgomery | 157 | Frankford |
| Saint Davids Post Office | Saint Davids Post Office | Delaware | 381 | Norristown |
| Torresdale Post Office | Torresdale Post Office | Philadelphia | 98 | Beverly |
| Tylersport Post Office | Tylersport Post Office | Montgomery | 548 | Perkiomenville |
| University City Post Office | University City Post Office | Philadelphia | 79 | Philadelphia |
| Upper Darby Post Office | Upper Darby Post Office | Delaware | 138 | Lansdowne |
| Valley Forge Post Office | Valley Forge Post Office | Chester | 184 | Valley Forge |
| Westtown Post Office | Westtown Post Office | Chester | 289 | West Chester |
| Widener University Post Office | Widener University Post Office | Delaware | 46 | Bridgeport |
| William Penn Post Office | William Penn Post Office | Philadelphia | 39 | Philadelphia |
| Willow Grove Post Office | Willow Grove Post Office | Montgomery | 351 | Hatboro |
| Vernon Park Station Post Office | Vernon Park Station Post Office | Philadelphia | 246 | Germantown |
| Villanova Post Office | Villanova Post Office | Delaware | 367 | Norristown |
| Wadsworth Station Post Office | Wadsworth Station Post Office | Philadelphia | 387 | Germantown |
| Wagontown Post Office | Wagontown Post Office | Chester | 518 | Wagontown |
| Warminster Post Office | Warminster Post Office | Bucks | 246 | Hatboro |
| Welsh Road Post Office | Welsh Road Post Office | Philadelphia | 125 | Frankford |
| West Conshohocken Branch Post Office | West Conshohocken Branch Post Office | Montgomery | 125 | Norristown |
| West Market Street Post Office | West Market Street Post Office | Philadelphia | 108 | Philadelphia |
| West Park Station Post Office | West Park Station Post Office | Philadelphia | 148 | Philadelphia |
| Southwark Post Office | Southwark Post Office | Philadelphia | 26 | Philadelphia |
| Spring Mount Post Office | Spring Mount Post Office | Montgomery | 171 | Perkiomenville |
| Springhouse Branch Post Office | Springhouse Branch Post Office | Montgomery | 308 | Ambler |
| Sumneytown Post Office | Sumneytown Post Office | Montgomery | 217 | Perkiomenville |
| Swarthmore Post Office | Swarthmore Post Office | Delaware | 138 | Lansdowne |
| Tacony Post Office | Tacony Post Office | Philadelphia | 52 | Frankford |
| Woodlyn Post Office | Woodlyn Post Office | Delaware | 85 | Bridgeport |
| Woxall Post Office | Woxall Post Office | Montgomery | 433 | Perkiomenville |
| Wyncote Post Office | Wyncote Post Office | Montgomery | 200 | Germantown |
| Yeadon Post Office | Yeadon Post Office | Delaware | 102 | Lansdowne |
| York Road Post Office | York Road Post Office | Bucks | 295 | Hatboro |
| Zieglerville Post Office | Zieglerville Post Office | Montgomery | 217 | Perkiomenville |
| Aliquippa Post Office | Aliquippa Post Office | Beaver | 725 | Ambridge |
| Allegheny Post Office | Allegheny Post Office | Allegheny | 738 | Pittsburgh West |
| Allison Park Post Office | Allison Park Post Office | Allegheny | 1175 | Glenshaw |
| Ambridge Post Office | Ambridge Post Office | Beaver | 755 | Ambridge |
| Arnold Post Office | Arnold Post Office | Westmoreland | 781 | New Kensington West |
| Arsenal Post Office | Arsenal Post Office | Allegheny | 761 | Pittsburgh East |
| Atlasburg Post Office | Atlasburg Post Office | Washington | 1053 | Avella |
| Baden Post Office | Baden Post Office | Beaver | 778 | Baden |
| Belle Vernon Branch Post Office | Belle Vernon Branch Post Office | Fayette | 938 | Donora |
| Bellevue Post Office | Bellevue Post Office | Allegheny | 961 | Pittsburgh West |
| Bentleyville Post Office | Bentleyville Post Office | Washington | 942 | Ellsworth |
| Bethel Park Post Office | Bethel Park Post Office | Allegheny | 1165 | Bridgeville |
| Blawnox Post Office | Blawnox Post Office | Allegheny | 735 | Pittsburgh East |
| Bloomfield Post Office | Bloomfield Post Office | Allegheny | 912 | Pittsburgh East |
| Boston Post Office | Boston Post Office | Allegheny | 761 | McKeesport |
| Brackenridge Post Office | Brackenridge Post Office | Westmoreland | 764 | New Kensington East |
| Braddock Post Office | Braddock Post Office | Allegheny | 764 | Braddock |
| Bradford Woods Post Office | Bradford Woods Post Office | Allegheny | 1230 | Mars |
| Bridgeville Post Office | Bridgeville Post Office | Allegheny | 840 | Bridgeville |
| Brookline Post Office | Brookline Post Office | Allegheny | 1201 | Pittsburgh West |
| Bulger Post Office | Bulger Post Office | Washington | 1184 | Midway |
| Callery Post Office | Callery Post Office | Butler | 978 | Mars |
| Canonsburg Post Office | Canonsburg Post Office | Washington | 951 | Canonsburg |
| Carson Post Office | Carson Post Office | Allegheny | 755 | Pittsburgh East |
| Cecil Post Office | Cecil Post Office | Washington | 961 | Canonsburg |
| Cedarhurst Post Office | Cedarhurst Post Office | Allegheny | 1175 | Pittsburgh West |
| Central Highlands Post Office | Central Highlands Post Office | Allegheny | 1194 | McKeesport |
| Central Station Washington Post Office | Central Station Washington Post Office | Washington | 1152 | Washington East |
| Charleroi Post Office | Charleroi Post Office | Washington | 761 | Monongahela |
| Cheswick Post Office | Cheswick Post Office | Allegheny | 758 | New Kensington West |
| Clairton Post Office | Clairton Post Office | Allegheny | 942 | Glassport |
| Claridge Post Office | Claridge Post Office | Westmoreland | 1033 | Greensburg |
| Connoquenessing Post Office | Connoquenessing Post Office | Butler | 1293 | Evans City |
| Conway Post Office | Conway Post Office | Beaver | 758 | Baden |
| Coraopolis Post Office | Coraopolis Post Office | Allegheny | 1102 | Ambridge |
| Corliss Post Office | Corliss Post Office | Allegheny | 883 | Pittsburgh West |
| Crafton Post Office | Crafton Post Office | Allegheny | 804 | Pittsburgh West |
| Cranberry Township Post Office | Cranberry Township Post Office | Butler | 1047 | Mars |
| Creighton Post Office | Creighton Post Office | Westmoreland | 774 | New Kensington West |
| Delmont Post Office | Delmont Post Office | Westmoreland | 1289 | Slickville |
| Donora Post Office | Donora Post Office | Washington | 778 | Donora |
| Dravosburg Post Office | Dravosburg Post Office | Allegheny | 879 | Glassport |
| Duquesne Post Office | Duquesne Post Office | Allegheny | 784 | McKeesport |
| East Liberty Post Office | East Liberty Post Office | Allegheny | 915 | Pittsburgh East |
| East McKeesport Post Office | East McKeesport Post Office | Allegheny | 1165 | Braddock |
| Elizabeth Post Office | Elizabeth Post Office | Allegheny | 755 | Glassport |
| Elrama Post Office | Elrama Post Office | Washington | 830 | Glassport |
| Etna Post Office | Etna Post Office | Allegheny | 758 | Pittsburgh East |
| Evans City Post Office | Evans City Post Office | Butler | 938 | Evans City |
| Export Post Office | Export Post Office | Westmoreland | 974 | Murrysville |
| Finleyville Post Office | Finleyville Post Office | Washington | 968 | Bridgeville |
| Fourth Avenue Post Office | Fourth Avenue Post Office | Allegheny | 738 | Pittsburgh West |
| Freedom Post Office | Freedom Post Office | Beaver | 748 | Beaver |
| Freeport Post Office | Freeport Post Office | Armstrong | 791 | Freeport |
| Gateway Center Post Office | Gateway Center Post Office | Allegheny | 741 | Pittsburgh West |
| Gibsonia Post Office | Gibsonia Post Office | Allegheny | 951 | Glenshaw |
| Glassport Post Office | Glassport Post Office | Allegheny | 761 | Glassport |
| Glenshaw Post Office | Glenshaw Post Office | Allegheny | 791 | Glenshaw |
| Grant Street Post Office | Grant Street Post Office | Allegheny | 751 | Pittsburgh East |
| Harwick Post Office | Harwick Post Office | Allegheny | 955 | New Kensington West |
| Hazelwood Post Office | Hazelwood Post Office | Allegheny | 778 | Pittsburgh East |
| Herminie Post Office | Herminie Post Office | Westmoreland | 1053 | Irwin |
| Hickory Post Office | Hickory Post Office | Washington | 1253 | Midway |
| Homestead Post Office | Homestead Post Office | Allegheny | 771 | Pittsburgh East |
| Homewood Post Office | Homewood Post Office | Allegheny | 942 | Pittsburgh East |
| Houston Post Office | Houston Post Office | Washington | 948 | Washington East |
| Irwin Post Office | Irwin Post Office | Westmoreland | 912 | Irwin |
| Jeannette Post Office | Jeannette Post Office | Westmoreland | 997 | Greensburg |
| Langeloth Post Office | Langeloth Post Office | Washington | 1211 | Avella |
| Large Post Office | Large Post Office | Allegheny | 794 | Glassport |
| Lower Burrell Post Office | Lower Burrell Post Office | Westmoreland | 1053 | New Kensington East |
| MacArthur Post Office | MacArthur Post Office | Beaver | 922 | Aliquippa |
| Manor Post Office | Manor Post Office | Westmoreland | 981 | Irwin |
| Mars Post Office | Mars Post Office | Butler | 1033 | Mars |
| McDonald Post Office | McDonald Post Office | Washington | 981 | Canonsburg |
| McKees Rocks Post Office | McKees Rocks Post Office | Allegheny | 738 | Pittsburgh West |
| McKnight Post Office | McKnight Post Office | Allegheny | 997 | Emsworth |
| McMurray Post Office | McMurray Post Office | Washington | 978 | Canonsburg |
| Midway Post Office | Midway Post Office | Washington | 1093 | Midway |
| Millvale Post Office | Millvale Post Office | Allegheny | 732 | Pittsburgh East |
| Monaca Post Office | Monaca Post Office | Beaver | 735 | Beaver |
| Monessen Post Office | Monessen Post Office | Washington | 764 | Monongahela |
| Monongahela Post Office | Monongahela Post Office | Washington | 764 | Monongahela |
| Monroeville Post Office | Monroeville Post Office | Allegheny | 1214 | Braddock |
| Mount Lebanon Post Office | Mount Lebanon Post Office | Allegheny | 1227 | Pittsburgh West |
| Mount Oliver Post Office | Mount Oliver Post Office | Allegheny | 1161 | Pittsburgh East |
| Mount Washington Post Office | Mount Washington Post Office | Allegheny | 1106 | Pittsburgh West |
| Munhall Post Office | Munhall Post Office | Allegheny | 1112 | Pittsburgh East |
| Muse Post Office | Muse Post Office | Washington | 1066 | Canonsburg |
| Natrona Heights Post Office | Natrona Heights Post Office | Allegheny | 1001 | New Kensington East |
| Neville Island Post Office | Neville Island Post Office | Allegheny | 725 | Ambridge |
| New Eagle Post Office | New Eagle Post Office | Washington | 755 | Monongahela |
| New Kensington Post Office | New Kensington Post Office | Westmoreland | 778 | New Kensington West |
| North Huntingdon Post Office | North Huntingdon Post Office | Westmoreland | 1079 | Irwin |
| North Versailles Post Office | North Versailles Post Office | Allegheny | 1201 | Braddock |
| Oakdale Post Office | Oakdale Post Office | Allegheny | 1220 | Oakdale |
| Oakland Post Office | Oakland Post Office | Allegheny | 856 | Pittsburgh East |
| Oakmont Post Office | Oakmont Post Office | Allegheny | 771 | New Kensington West |
| Parnassus Post Office | Parnassus Post Office | Westmoreland | 758 | New Kensington West |
| Penn Hills Post Office | Penn Hills Post Office | Allegheny | 1273 | Braddock |
| Presto Post Office | Presto Post Office | Allegheny | 801 | Bridgeville |
| Rochester Post Office | Rochester Post Office | Beaver | 768 | Beaver |
| Russellton Post Office | Russellton Post Office | Allegheny | 935 | New Kensington West |
| Sarver Post Office | Sarver Post Office | Butler | 1224 | Curtisville |
| Saxonburg Post Office | Saxonburg Post Office | Butler | 1299 | Curtisville |
| Sewickley Post Office | Sewickley Post Office | Allegheny | 764 | Ambridge |
| Sharpsburg Post Office | Sharpsburg Post Office | Allegheny | 738 | Pittsburgh East |
| Slovan Post Office | Slovan Post Office | Washington | 1017 | Avella |
| South Heights Post Office | South Heights Post Office | Beaver | 774 | Ambridge |
| South Hills Post Office | South Hills Post Office | Allegheny | 1188 | Pittsburgh West |
| South Park Post Office | South Park Post Office | Allegheny | 955 | Bridgeville |
| Springdale Post Office | Springdale Post Office | Allegheny | 804 | New Kensington West |
| Squirrel Hill Post Office | Squirrel Hill Post Office | Allegheny | 1093 | Pittsburgh East |
| Strabane Post Office | Strabane Post Office | Washington | 968 | Canonsburg |
| Swissvale Post Office | Swissvale Post Office | Allegheny | 925 | Pittsburgh East |
| Trafford Post Office | Trafford Post Office | Westmoreland | 820 | Braddock |
| Turtle Creek Post Office | Turtle Creek Post Office | Allegheny | 741 | Braddock |
| Uptown Pittsburgh Post Office | Uptown Pittsburgh Post Office | Allegheny | 807 | Pittsburgh East |
| Valencia Post Office | Valencia Post Office | Butler | 1070 | Valencia |
| Venetia Post Office | Venetia Post Office | Washington | 1010 | Hackett |
| Verona Post Office | Verona Post Office | Allegheny | 751 | New Kensington West |
| Village Post Office | Village Post Office | Allegheny | 1132 | Bridgeville |
| Wabash Post Office | Wabash Post Office | Allegheny | 748 | Pittsburgh West |
| West Newton Post Office | West Newton Post Office | Westmoreland | 768 | Donora |
| West View Post Office | West View Post Office | Allegheny | 1076 | Emsworth |
| Westmoreland City Post Office | Westmoreland City Post Office | Westmoreland | 958 | Irwin |
| Wexford Post Office | Wexford Post Office | Allegheny | 1293 | Emsworth |
| Wilkinsburg Finance Post Office | Wilkinsburg Finance Post Office | Allegheny | 932 | Pittsburgh East |
| Wilmerding Post Office | Wilmerding Post Office | Allegheny | 745 | Braddock |
| Wylie Post Office | Wylie Post Office | Allegheny | 951 | Pittsburgh East |
| Geigertown Post Office | Geigertown Post Office | Berks | 381 | Elverson |
| Barto Post Office | Barto Post Office | Berks | 528 | East Greenville |
| Birdsboro Post Office | Birdsboro Post Office | Berks | 194 | Birdsboro |
| Blandon Post Office | Blandon Post Office | Berks | 390 | Temple |
| Boyertown Post Office | Boyertown Post Office | Berks | 397 | Boyertown |
| Douglassville Post Office | Douglassville Post Office | Berks | 200 | Boyertown |
| Kutztown Post Office | Kutztown Post Office | Berks | 420 | Kutztown |
| Lenhartsville Post Office | Lenhartsville Post Office | Berks | 394 | Hamburg |
| Little Oley Post Office (historical) | Little Oley Post Office (historical) | Berks | 312 | Boyertown |
| Post Office-Reading Station | Post Office-Reading Station | Berks | 312 | Birdsboro |
| Reading Post Office | Reading Post Office | Berks | 315 | Reading |
| Reading Post Office-Downtown | Reading Post Office-Downtown | Berks | 262 | Reading |
| Reading Post Office-North Carrier Annex | Reading Post Office-North Carrier Annex | Berks | 246 | Reading |
| Mohnton Post Office | Mohnton Post Office | Berks | 361 | Reading |
| Topton Post Office | Topton Post Office | Berks | 482 | Topton |
| Wyomissing Post Office | Wyomissing Post Office | Berks | 276 | Reading |
| Rowe Post Office (historical) | Rowe Post Office (historical) | Beaver | 965 | New Galilee |
| Blackhawk Post Office (historical) | Blackhawk Post Office (historical) | Beaver | 1165 | Midland |
| Saint Benedict Post Office | Saint Benedict Post Office | Cambria | 1781 | Hastings |
| Waterford Post Office | Waterford Post Office | Erie | 1197 | Waterford |
| Albion Post Office | Albion Post Office | Erie | 892 | Albion |
| Girard Post Office | Girard Post Office | Erie | 774 | Fairview |
| Lake City Post Office | Lake City Post Office | Erie | 718 | Fairview |
| Fairview Post Office | Fairview Post Office | Erie | 794 | Fairview |
| Corry Post Office | Corry Post Office | Erie | 1437 | Corry |
| Elgin Post Office | Elgin Post Office | Erie | 1394 | Corry |
| Union City Post Office | Union City Post Office | Erie | 1257 | Union City |
| Edinboro Post Office | Edinboro Post Office | Erie | 1230 | Cambridge Springs NE |
| Lake Ariel Post Office | Lake Ariel Post Office | Wayne | 1447 | Lake Ariel |
| Waymart Post Office | Waymart Post Office | Wayne | 1401 | Waymart |
| Northcraft Post Office (historical) | Northcraft Post Office (historical) | Fulton | 732 | Bellegrove |
| Franklintown Post Office | Franklintown Post Office | York | 692 | Dillsburg |
| Gardners Post Office | Gardners Post Office | Adams | 869 | Mount Holly Springs |
| Gettysburg Post Office | Gettysburg Post Office | Adams | 522 | Gettysburg |
| Glen Rock Post Office | Glen Rock Post Office | York | 696 | Glen Rock |
| Hanover Post Office | Hanover Post Office | York | 587 | Hanover |
| Harrisburg Post Office | Harrisburg Post Office | Dauphin | 394 | Harrisburg West |
| Jacobus Post Office | Jacobus Post Office | York | 663 | York |
| Abbottstown Post Office | Abbottstown Post Office | Adams | 571 | Abbottstown |
| Arendtsville Post Office | Arendtsville Post Office | Adams | 709 | Arendtsville |
| Aspers Post Office | Aspers Post Office | Adams | 673 | Biglerville |
| Bendersville Post Office | Bendersville Post Office | Adams | 791 | Biglerville |
| Biglerville Post Office | Biglerville Post Office | Adams | 650 | Arendtsville |
| Brogue Post Office | Brogue Post Office | York | 804 | Airville |
| Cashtown Post Office | Cashtown Post Office | Adams | 751 | Arendtsville |
| Littlestown Post Office | Littlestown Post Office | Adams | 630 | Littlestown |
| Loganville Post Office | Loganville Post Office | York | 774 | Glen Rock |
| Craley Post Office | Craley Post Office | York | 627 | Red Lion |
| Dallastown Post Office | Dallastown Post Office | York | 840 | York |
| Delta Post Office | Delta Post Office | York | 499 | Delta |
| Dillsburg Post Office | Dillsburg Post Office | York | 551 | Dillsburg |
| McSherrystown Post Office | McSherrystown Post Office | Adams | 561 | McSherrystown |
| McKnightstown Post Office | McKnightstown Post Office | Adams | 646 | Fairfield |
| Dover Post Office | Dover Post Office | York | 456 | Dover |
| East Berlin Post Office | East Berlin Post Office | Adams | 420 | Abbottstown |
| East Prospect Post Office | East Prospect Post Office | York | 456 | Red Lion |
| East York Post Office | East York Post Office | York | 436 | York |
| Fairfield Post Office | Fairfield Post Office | Adams | 597 | Fairfield |
| Felton Post Office | Felton Post Office | York | 554 | Stewartstown |
| New Freedom Post Office | New Freedom Post Office | York | 846 | New Freedom |
| New Park Post Office | New Park Post Office | York | 784 | Norrisville |
| Railroad Post Office | Railroad Post Office | York | 748 | Glen Rock |
| Red Lion Post Office | Red Lion Post Office | York | 919 | Red Lion |
| Wellsville Post Office | Wellsville Post Office | York | 492 | Wellsville |
| West York Post Office | West York Post Office | York | 479 | West York |
| Windsor Post Office | Windsor Post Office | York | 692 | Red Lion |
| Wrightsville Post Office | Wrightsville Post Office | York | 338 | Columbia West |
| York Haven Post Office | York Haven Post Office | York | 358 | York Haven |
| York Springs Post Office | York Springs Post Office | Adams | 607 | Dillsburg |
| Rossville Post Office | Rossville Post Office | York | 509 | Wellsville |
| Seven Valleys Post Office | Seven Valleys Post Office | York | 489 | Seven Valleys |
| Shippensburg Post Office | Shippensburg Post Office | Cumberland | 646 | Shippensburg |
| Shrewsbury Post Office | Shrewsbury Post Office | York | 889 | Glen Rock |
| Spring Grove Post Office | Spring Grove Post Office | York | 502 | West York |
| Stewartstown Post Office | Stewartstown Post Office | York | 883 | Stewartstown |
| Thomasville Post Office | Thomasville Post Office | York | 479 | West York |
| Washington Boro Post Office | Washington Boro Post Office | Lancaster | 239 | Safe Harbor |