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Abbe Creek	Abbe Creek	Linn	709	Bertram
Abes Fork	Abes Fork	Tama	863	Tama
Ackley Creek	Ackley Creek	Floyd	958	Greene
Aldrich Creek	Aldrich Creek	Ida	1168	Battle Creek
Alexander Creek	Alexander Creek	Fayette	1007	Fayette
Allen Creek	Allen Creek	Pottawattamie	981	Loveland
Allen Creek	Allen Creek	Webster	906	Stratford
Allison Creek	Allison Creek	Delaware	840	Earlville
Alloway Creek	Alloway Creek	Jasper	846	Kellogg
Almoral Branch	Almoral Branch	Delaware	958	Greeley
Ames Creek	Ames Creek	Clinton	600	Malone
Anson Creek	Anson Creek	Marshall	866	Marshalltown
Apple Creek	Apple Creek	Linn	764	Center Point
Arcola Creek	Arcola Creek	Monona	1033	Castana
Argo Slough	Argo Slough	Lyon	1394	Little Rock
Ash Branch	Ash Branch	Taylor	1142	Merle Junction
Ashby Creek	Ashby Creek	Mills	1001	Coburg
Asher Creek	Asher Creek	Marshall	866	Marshalltown
Ashton Creek	Ashton Creek	Ida	1122	Washta
Bacon Creek	Bacon Creek	Woodbury	1076	Sioux City South
Bacon Creek	Bacon Creek	Woodbury	1109	Correctionville
Badger Creek	Badger Creek	Warren	827	Norwalk
Badger Creek	Badger Creek	Ida	1207	Ida Grove
Badger Creek	Badger Creek	Cherokee	1289	Fielding
Badger Creek	Badger Creek	Cherokee	1171	Cherokee North
Badger Creek	Badger Creek	Webster	1017	Fort Dodge North
Bailey Creek	Bailey Creek	Franklin	1020	Hampton North
Baker Creek	Baker Creek	Van Buren	653	Bonaparte
Bakers Creek	Bakers Creek	Dubuque	938	Dyersville East
Baldwin Mason Creek	Baldwin Mason Creek	Cedar	663	Cedar Bluff
Ballard Creek	Ballard Creek	Story	846	Huxley
Ballard Creek	Ballard Creek	Marion	748	Knoxville NW
Ballard Creek	Ballard Creek	Pottawattamie	1119	Avoca
Ballinger Creek	Ballinger Creek	Mahaska	709	Peoria
Bar Slough	Bar Slough	Jackson	587	Green Island
Barber Creek	Barber Creek	Clinton	617	De Witt
Barber Creek	Barber Creek	Monona	1047	Smithland
Barlean Creek	Barlean Creek	Lee	531	Keokuk
Barlow Lake Drain	Barlow Lake Drain	Des Moines	525	Keithsburg
Barry Creek	Barry Creek	O'Brien	1293	Hartley SW
Baskins Run	Baskins Run	Bremer	899	Waverly
Bass Point Creek	Bass Point Creek	Boone	879	Boone West
Basswood Creek	Basswood Creek	Dubuque	604	Balltown
Batten Branch	Batten Branch	Davis	781	Bunker Hill
Battle Creek	Battle Creek	Adair	1191	Arbor Hill
Battle Creek	Battle Creek	Ida	1188	Battle Creek
Battle Run	Battle Run	Guthrie	1063	Bagley
Bay Branch	Bay Branch	Guthrie	988	Panora
Beamon Creek	Beamon Creek	Crawford	1220	Boyer
Bear Branch	Bear Branch	Cass	1115	Lewis
Bear Creek	Bear Creek	Boone	863	Madrid NW
Bear Creek	Bear Creek	Clinton	653	Preston
Bear Creek	Bear Creek	Allamakee	755	Rossville
Bear Creek	Bear Creek	Winneshiek	666	Dorchester
Bear Creek	Bear Creek	Wapello	640	Ottumwa North
Bear Creek	Bear Creek	Davis	702	Paris
Bear Creek	Bear Creek	Van Buren	558	Bonaparte
Bear Creek	Bear Creek	Dallas	883	Adel
Bear Creek	Bear Creek	Hancock	1207	Forest City
Bear Creek	Bear Creek	Fayette	928	Wadena
Bear Creek	Bear Creek	Clayton	659	Garber
Bear Creek	Bear Creek	Delaware	919	Dyersville West
Bear Creek	Bear Creek	Benton	781	Vinton
Bear Creek	Bear Creek	Story	925	Ames East
Bear Creek	Bear Creek	Jackson	686	Baldwin
Bear Creek	Bear Creek	Benton	735	Shellsburg
Beaver Branch	Beaver Branch	Boone	961	Berkley
Beaver Creek	Beaver Creek	Carroll	1194	Viola Center
Beaver Creek	Beaver Creek	Floyd	1010	Greene
Beaver Creek	Beaver Creek	Butler	909	Clarksville
Beaver Creek	Beaver Creek	Fayette	787	Gunder
Beaver Creek	Beaver Creek	Hardin	932	Eldora
Beaver Creek	Beaver Creek	Black Hawk	860	Cedar Falls
Beaver Creek	Beaver Creek	Crawford	1237	Ricketts
Beaver Creek	Beaver Creek	Polk	794	Des Moines NW
Beaver Creek	Beaver Creek	Jackson	587	Savanna
Beaver Creek	Beaver Creek	Monona	1033	Moorhead NW
Beaver Creek	Beaver Creek	Guthrie	984	Stuart North
Beaver Creek	Beaver Creek	Pocahontas	1119	Bradgate
Beaver Creek	Beaver Creek	Plymouth	1132	Akron
Beaver Creek	Beaver Creek	Humboldt	1043	Humboldt
Beaver Creek	Beaver Creek	Worth	1168	Fertile
Beaver Creek	Beaver Creek	Cerro Gordo	1106	Nora Springs
Beaver Creek	Beaver Creek	Mitchell	1122	New Haven
Beaver Creek	Beaver Creek	Howard	1194	Lime Springs
Beaver Creek	Beaver Creek	Chickasaw	1001	Bassett
Beaver Creek	Beaver Creek	Floyd	974	Rockford
Beaver Slough	Beaver Slough	Clinton	574	Clinton
Beaverdam Creek	Beaverdam Creek	Cerro Gordo	1053	Sheffield
Bedell Creek	Bedell Creek	Pottawattamie	1152	Avoca
Bee Branch	Bee Branch	Dubuque	633	Dubuque North
Bee Branch	Bee Branch	Monroe	850	Melrose
Bee Branch	Bee Branch	Monroe	764	Hiteman
Bee Creek	Bee Creek	Decatur	981	Lacelle
Beemis Creek	Beemis Creek	Floyd	961	Aureola
Beers Creek	Beers Creek	Jackson	696	Baldwin
Bell Creek	Bell Creek	Delaware	820	Hopkinton West
Bell Creek	Bell Creek	Fayette	817	Elgin
Bellevue Slough	Bellevue Slough	Jackson	594	Bellevue
Benjamin Creek	Benjamin Creek	Jasper	820	Newton
Bennett Creek	Bennett Creek	Cedar	689	Lime City
Bennett Creek	Bennett Creek	Tama	817	Montour
Berry Branch	Berry Branch	Henry	584	Lockridge East
Berrys Run	Berrys Run	Linn	797	Marion
Bickel Branch	Bickel Branch	Van Buren	636	Douds
Big Bear Creek	Big Bear Creek	Iowa	732	Marengo
Big Creek	Big Creek	Woodbury	1096	Correctionville
Big Creek	Big Creek	Crawford	1201	Denison SW
Big Creek	Big Creek	Linn	692	Bertram
Big Creek	Big Creek	Polk	837	Des Moines NW
Big Creek	Big Creek	Henry	554	Lowell
Big Elkhorn Creek	Big Elkhorn Creek	Cedar	669	Durant
Big Indian Creek	Big Indian Creek	Van Buren	531	Farmington
Big Muddy Creek	Big Muddy Creek	Clay	1299	Dickens
Big Slough	Big Slough	Lee	509	Dallas City
Big Slough	Big Slough	Muscatine	617	West Liberty
Big Slough Creek	Big Slough Creek	Louisa	630	Winfield North
Big Whisky Creek	Big Whisky Creek	Woodbury	1076	Lawton
Bigalks Creek	Bigalks Creek	Winneshiek	1086	Cresco NE
Birch Creek	Birch Creek	Washington	673	Wellman
Birch Creek	Birch Creek	Lee	597	Argyle
Bitter Creek	Bitter Creek	Ida	1129	Washta
Black Cat Creek	Black Cat Creek	Kossuth	1115	Algona
Black Hawk Creek	Black Hawk Creek	Black Hawk	840	Waterloo North
Black Hawk Creek	Black Hawk Creek	Jackson	702	Canton
Black Hawk Creek	Black Hawk Creek	Scott	548	Davenport East
Blair Creek	Blair Creek	Cerro Gordo	1129	Mason City
Blood Run	Blood Run	Lyon	1270	Klondike
Bloody Run	Bloody Run	Floyd	971	Charles City
Bloody Run	Bloody Run	Humboldt	1070	Livermore
Bloody Run	Bloody Run	Clayton	617	Prairie du Chien
Bloody Run	Bloody Run	Delaware	771	Colesburg
Bloody Run	Bloody Run	Dubuque	607	Dubuque North
Blue Creek	Blue Creek	Linn	748	Center Point
Bluebell Creek	Bluebell Creek	Dubuque	604	Turkey River
Bluegrass Creek	Bluegrass Creek	Audubon	1227	Audubon
Bluff Creek	Bluff Creek	Mahaska	659	Eddyville
Bluff Creek	Bluff Creek	Boone	876	Boone West
Bohemian Creek	Bohemian Creek	Winneshiek	1066	Fort Atkinson
Bonell Creek	Bonell Creek	Jefferson	676	Libertyville
Bonnell Creek	Bonnell Creek	Lee	558	Donnellson
Bonnie Creek	Bonnie Creek	Shelby	1250	Jacksonville
Boone River	Boone River	Hamilton	915	Stratford
Boulder Creek	Boulder Creek	Linn	863	Prairieburg
Bogue Creek	Bogue Creek	Henry	564	Salem
Boyd Branch	Boyd Branch	Appanoose	774	Blakesburg
Boyer Creek	Boyer Creek	Sac	1329	Lakeside
Boyer River	Boyer River	Pottawattamie	981	Loveland
Boylan Creek	Boylan Creek	Butler	958	Dumont South
Bradley Creek	Bradley Creek	Johnson	692	Tiffin
Bradys Creek	Bradys Creek	Webster	1007	Fort Dodge North
Branch Creek	Branch Creek	Keokuk	676	Harper
Brandywine Creek	Brandywine Creek	Henry	650	Swedesburg
Brewers Creek	Brewers Creek	Hamilton	1010	Webster City
Bridge Creek	Bridge Creek	Keokuk	663	Sigourney
Broadhorn Creek	Broadhorn Creek	Warren	889	New Virginia
Broken Kettle Creek	Broken Kettle Creek	Plymouth	1079	Elk Point NE
Brooke Creek	Brooke Creek	Buena Vista	1237	Peterson
Brookside Creek	Brookside Creek	Clinton	610	Clinton
Brophy Creek	Brophy Creek	Clinton	594	Malone
Brown Branch	Brown Branch	Adams	1119	Corning North
Brown Creek	Brown Creek	Wapello	653	Chillicothe
Brown Creek	Brown Creek	Emmet	1243	Estherville
Brownfield Creek	Brownfield Creek	Clayton	797	Garber
Bruce Branch	Bruce Branch	Adair	1125	Stuart South
Bruce Creek	Bruce Creek	Fayette	1050	Strawberry Point
Brush Creek	Brush Creek	Jackson	620	Delmar North
Brush Creek	Brush Creek	Appanoose	827	Centerville East
Brush Creek	Brush Creek	Henry	571	New London
Brush Creek	Brush Creek	Decatur	1020	Le Roy
Brush Creek	Brush Creek	Henry	587	Trenton
Brush Creek	Brush Creek	Wapello	682	Ottumwa South
Brush Creek	Brush Creek	Des Moines	528	Dallas City
Brush Creek	Brush Creek	Decatur	915	Leon
Brush Creek	Brush Creek	Marion	748	Otley
Brush Creek	Brush Creek	Wayne	948	Corydon NE
Brush Creek	Brush Creek	Marshall	886	Gilman
Brush Creek	Brush Creek	Fayette	843	Wadena
Brush Creek	Brush Creek	Clarke	919	Woodburn
Brushy Creek	Brushy Creek	Webster	919	Stratford
Brushy Creek	Brushy Creek	Guthrie	1027	Guthrie Center East
Brushy Creek	Brushy Creek	Taylor	1060	Hopkins
Buchanan Creek	Buchanan Creek	Page	942	Clearmont
Buck Branch	Buck Branch	Appanoose	853	Mystic
Buck Creek	Buck Creek	Page	968	Coin
Buck Creek	Buck Creek	Warren	830	Milo
Buck Creek	Buck Creek	Jackson	686	Fulton
Buck Creek	Buck Creek	Buchanan	925	Littleton
Buck Creek	Buck Creek	Clayton	610	Guttenberg
Buck Creek	Buck Creek	Hamilton	1043	Webster City
Buck Creek	Buck Creek	Delaware	833	Hopkinton West
Buck Creek	Buck Creek	Crawford	1132	Dow City
Buck Creek	Buck Creek	Cass	1125	Atlantic
Buck Creek	Buck Creek	Washington	614	Hills
Buck Creek	Buck Creek	Jasper	748	Monroe
Buck Creek	Buck Creek	Mahaska	748	Union Mills
Buck Run	Buck Run	Sac	1234	Newell West
Buck Run	Buck Run	Carroll	1063	Lanesboro
Buckeye Creek	Buckeye Creek	Iowa	751	Ladora
Buckeye Creek	Buckeye Creek	Wapello	692	Abingdon
Buckley Creek	Buckley Creek	Mahaska	728	Peoria
Bucks Branch	Bucks Branch	Dallas	925	Dawson
Bud Creek	Bud Creek	Scott	574	Cordova
Buffalo Creek	Buffalo Creek	Johnson	696	Tiffin
Buffalo Creek	Buffalo Creek	Benton	814	Blairstown
Buffalo Creek	Buffalo Creek	Ida	1227	Ida Grove NW
Buffalo Creek	Buffalo Creek	Cherokee	1253	Pierson
Buffalo Creek	Buffalo Creek	Kossuth	1161	Woden
Buffalo Creek	Buffalo Creek	Winnebago	1201	Forest City
Buffalo Creek	Buffalo Creek	Franklin	1083	Hampton North
Buffalo Creek	Buffalo Creek	Jones	781	Anamosa
Buffalo Creek	Buffalo Creek	Crawford	1165	Denison
Buffington Creek	Buffington Creek	Louisa	620	Winfield North
Bulger Creek	Bulger Creek	Dallas	853	Waukee
Bulgers Run	Bulgers Run	Washington	633	Riverside
Bull Creek	Bull Creek	Adams	1066	Carbon
Bull Run	Bull Run	Warren	801	Norwalk
Bull Run	Bull Run	Plymouth	1197	Ireton SW
Buncombe Creek	Buncombe Creek	Dubuque	817	Bernard
Bunker Chute	Bunker Chute	Dubuque	600	Cassville
Burnett Creek	Burnett Creek	Marshall	866	Marshalltown
Burr Oak Creek	Burr Oak Creek	Sioux	1243	Rock Valley
Burr Oak Creek	Burr Oak Creek	Mitchell	1112	New Haven
Burr Oak Creek	Burr Oak Creek	Winneshiek	1063	Fort Atkinson
Burr Oak Creek	Burr Oak Creek	Jefferson	591	Trenton
Burr Oak Creek	Burr Oak Creek	Jasper	843	Kellogg
Burr Oak Creek	Burr Oak Creek	Davis	741	Selma
Bush Branch	Bush Branch	Madison	1033	Pitzer
Buss Creek	Buss Creek	Crawford	1102	Dunlap NE
Butcher Creek	Butcher Creek	Marion	748	Knoxville SW
Butcher Creek	Butcher Creek	Warren	761	Hartford
Butter Creek	Butter Creek	Davis	755	Floris
Butler Drain	Butler Drain	Des Moines	528	Oakville
Buttermilk Creek	Buttermilk Creek	Wright	1096	Eagle Grove
Buttrick Creek	Buttrick Creek	Greene	961	Cooper
Buzzard Creek	Buzzard Creek	Appanoose	778	Blakesburg
Byers Branch	Byers Branch	Jasper	807	Mingo
Calamus Creek	Calamus Creek	Clinton	663	Wheatland
Calamus Creek	Calamus Creek	Carroll	1138	Coon Rapids North
Calamus Creek	Calamus Creek	Kossuth	1175	Lone Rock
Calamus Creek	Calamus Creek	Polk	846	Loring
Caleb Creek	Caleb Creek	Decatur	886	Lineville
Calhoun Creek	Calhoun Creek	Marion	748	Knoxville NW
Calmus Creek	Calmus Creek	Cerro Gordo	1079	Mason City
Camp Creek	Camp Creek	Fremont	935	Randolph
Camp Creek	Camp Creek	Black Hawk	922	Littleton
Camp Creek	Camp Creek	Woodbury	1083	Luton
Camp Creek	Camp Creek	Calhoun	1106	Yetter
Camp Creek	Camp Creek	Polk	758	Pleasantville
Camp Creek	Camp Creek	Cass	1122	Walnut
Camp Creek	Camp Creek	Washington	640	Kalona
Campbell Creek	Campbell Creek	Harrison	1102	Hard Scratch
Campetine Creek	Campetine Creek	Marion	741	Knoxville
Cane Branch	Cane Branch	Lucas	843	Chariton
Canoe Creek	Canoe Creek	Winneshiek	741	Hanover
Canyon Creek	Canyon Creek	Fremont	928	Randolph
Carlan Creek	Carlan Creek	Clayton	633	Colesburg
Carls Creek	Carls Creek	Appanoose	909	Plano
Carruthers Creek	Carruthers Creek	Monroe	751	Attica
Carson Creek	Carson Creek	Jasper	755	Monroe
Carter Creek	Carter Creek	Plymouth	1132	Hinton
Catfish Branch	Catfish Branch	Wayne	909	Plano
Catfish Creek	Catfish Creek	Dubuque	594	Dubuque South
Catherall Creek	Catherall Creek	Appanoose	856	Centerville East
Caton Branch	Caton Branch	Boone	860	Luther
Cavitt Creek	Cavitt Creek	Warren	797	Scotch Ridge
Cedar Creek	Cedar Creek	Henry	617	Hillsboro
Cedar Creek	Cedar Creek	Sac	1165	Sac City East
Cedar Creek	Cedar Creek	Hardin	928	Eldora
Cedar Creek	Cedar Creek	Greene	1030	Scranton
Cedar Creek	Cedar Creek	Jackson	663	Fulton
Cedar Creek	Cedar Creek	Washington	663	Washington
Cedar Creek	Cedar Creek	Henry	640	Lowell
Cedar Creek	Cedar Creek	Madison	850	Cumming
Cedar Creek	Cedar Creek	Mahaska	673	Leighton
Cedar Creek	Cedar Creek	Keokuk	659	Sigourney
Cedar Creek Church	Cedar Creek Church	Henry	718	Lockridge East
Center Branch Fox River	Center Branch Fox River	Davis	830	Paris
Chariton Creek	Chariton Creek	Clarke	1010	Le Roy
Chequest Creek	Chequest Creek	Van Buren	577	Keosauqua
Cherry Creek	Cherry Creek	Madison	843	Cumming
Cherry Creek	Cherry Creek	Jasper	761	Monroe
Cherry Creek	Cherry Creek	Clinton	623	Malone
Cheslea Creek	Cheslea Creek	Cerro Gordo	1115	Mason City
Chicken Creek	Chicken Creek	Marshall	883	Marshalltown
Chicken Creek	Chicken Creek	Muscatine	610	Muscatine NW
Chihaks Creek	Chihaks Creek	Howard	1125	Cresco SE
Chippewa Creek	Chippewa Creek	Wapello	607	Eldon
Christie Creek	Christie Creek	Van Buren	551	Bonaparte
Church Creek	Church Creek	Jefferson	659	Libertyville
Cipra Branch	Cipra Branch	Adams	1165	Prescott
Clanton Creek	Clanton Creek	Warren	830	Martensdale
Clark Creek	Clark Creek	Allamakee	646	New Albin
Clarks Branch	Clarks Branch	Cass	1060	Griswold
Clear Creek	Clear Creek	Allamakee	643	Waukon NW
Clear Creek	Clear Creek	Allamakee	620	Lansing
Clear Creek	Clear Creek	Cerro Gordo	1175	Clear Lake East
Clear Creek	Clear Creek	Story	902	Ames West
Clear Creek	Clear Creek	Jasper	804	Mingo
Clear Creek	Clear Creek	Linn	676	Solon
Clear Creek	Clear Creek	Johnson	643	Iowa City West
Clear Creek	Clear Creek	Keokuk	627	Keota
Clemons Creek	Clemons Creek	Washington	676	Washington
Cline Branch	Cline Branch	Jackson	712	Leisure Lake
Cline Creek	Cline Creek	Delaware	810	Hopkinton East
Cloie Branch	Cloie Branch	Dubuque	617	Dubuque North
Coal Creek	Coal Creek	Keokuk	696	Delta
Coal Creek	Coal Creek	Monroe	794	Albia
Coal Creek	Coal Creek	Polk	761	Pleasantville
Coal Creek	Coal Creek	Dallas	892	Adel
Coal Creek	Coal Creek	Mahaska	676	Buxton
Coal Valley Creek	Coal Valley Creek	Boone	869	Boone West
Cobb Creek	Cobb Creek	Harrison	1043	Pisgah
Cobbville Creek	Cobbville Creek	Decatur	991	Garden Grove SW
Coe Creek	Coe Creek	Montgomery	1056	Griswold
Coffee Creek	Coffee Creek	Dubuque	984	New Vienna
Coffins Creek	Coffins Creek	Delaware	925	Manchester
Cold Water Creek	Cold Water Creek	Winneshiek	997	Bluffton
Coldwater Creek	Coldwater Creek	Butler	935	Allison
Cole Creek	Cole Creek	O'Brien	1355	Paullina
College Creek	College Creek	Story	896	Ames West
Competine Creek	Competine Creek	Jefferson	669	Brookville
Comstock Creek	Comstock Creek	Wapello	646	Chillicothe
Contrary Creek	Contrary Creek	Monroe	830	Iconium
Convey Creek	Convey Creek	Johnson	712	Amish
Cook Creek	Cook Creek	Van Buren	686	Azen
Cook Slough	Cook Slough	Clinton	584	Savanna
Cooksley Creek	Cooksley Creek	Delaware	899	Dyersville West
Coon Creek	Coon Creek	Wapello	741	Farson
Coon Creek	Coon Creek	Polk	801	Beech
Coon Creek	Coon Creek	Polk	876	Elkhart
Coon Creek	Coon Creek	Johnson	666	Cedar Bluff
Coon Creek	Coon Creek	Tama	879	Traer
Coon Creek	Coon Creek	Clayton	764	Elkader
Coon Creek	Coon Creek	Woodbury	1152	Correctionville
Coon Creek	Coon Creek	Winneshiek	787	Freeport
Coon Creek	Coon Creek	Butler	971	Dumont South
Coon Creek	Coon Creek	Crawford	1145	Dow City
Coon Creek	Coon Creek	Iowa	735	Marengo
Coon Creek	Coon Creek	Jasper	820	Kellogg
Coon Creek	Coon Creek	Jefferson	712	Abingdon
Coon Creek	Coon Creek	Davis	709	Ottumwa South
Coon Creek	Coon Creek	Van Buren	594	Bonaparte
Coonley Creek	Coonley Creek	Cherokee	1161	Cherokee South
Cooper Creek	Cooper Creek	Appanoose	837	Hiattsville
Copper Creek	Copper Creek	Jackson	640	Preston
Cooper Creek	Cooper Creek	Fremont	935	Sidney
Coppers Creek	Coppers Creek	Van Buren	554	Keosauqua
Cordova Slough	Cordova Slough	Scott	574	Cordova
Cota Creek	Cota Creek	Allamakee	614	Harpers Ferry
Cottonwood Creek	Cottonwood Creek	Monona	1030	Moorhead NW
Cottonwood Creek	Cottonwood Creek	Buena Vista	1234	Peterson
Cottonwood Creek	Cottonwood Creek	Monona	1053	Castana
Cottonwood Drain	Cottonwood Drain	Des Moines	518	Kingston
Coulee Creek	Coulee Creek	Fayette	1010	Fayette
Cow Branch	Cow Branch	Clayton	745	Garber
Cox Creek	Cox Creek	Clayton	725	Elkader
Crabapple Creek	Crabapple Creek	Audubon	1243	Audubon
Crabapple Creek	Crabapple Creek	Linn	761	Springville
Crane Creek	Crane Creek	Fayette	978	Saint Lucas
Crane Creek	Crane Creek	Cerro Gordo	1155	Clear Lake East
Crane Creek	Crane Creek	Black Hawk	925	Littleton
Crane Creek	Crane Creek	Muscatine	597	Nichols
Crescent Creek	Crescent Creek	Pottawattamie	994	Council Bluffs North
Crooked Creek	Crooked Creek	Lee	518	Croton
Crooked Creek	Crooked Creek	Johnson	620	Hills
Crooked Creek	Crooked Creek	Webster	928	Lehigh
Crooked Creek	Crooked Creek	Hamilton	1030	Mackey
Crooked Creek	Crooked Creek	Cedar	640	Rochester
Crooked Creek	Crooked Creek	Cass	1194	Anita
Crooked Creek	Crooked Creek	Jefferson	600	Wayland
Crooked Creek	Crooked Creek	Ringgold	1030	Benton
Crow Creek	Crow Creek	Marion	797	Melcher-Dallas
Crow Creek	Crow Creek	Wayne	935	Confidence
Crow Creek	Crow Creek	Polk	830	Beech
Crow Creek	Crow Creek	Jefferson	653	Fairfield South
Crow Creek	Crow Creek	Scott	561	Silvis
Crystal Creek	Crystal Creek	Clinton	636	De Witt
Crystal Creek	Crystal Creek	Tama	902	Garwin
Cub Creek	Cub Creek	Poweshiek	791	Victor
Curran Branch	Curran Branch	Dubuque	856	Fillmore
Cylinder Creek	Cylinder Creek	Palo Alto	1158	Plover
Dailey Creek	Dailey Creek	Butler	988	Allison
Dark Chute	Dark Chute	Clinton	584	Savanna
Daugherty Creek	Daugherty Creek	Taylor	1056	Ladoga
Davids Creek	Davids Creek	Audubon	1214	Exira West
Davis Creek	Davis Creek	Washington	604	Lone Tree
Davis Creek	Davis Creek	Boone	886	Madrid NW
Davisons Creek	Davisons Creek	Marshall	853	Le Grand
DeLongs Creek	DeLongs Creek	Wright	1129	Sheldon Creek
Dead Brier Creek	Dead Brier Creek	Greene	974	Yale
Dead Man Creek	Dead Man Creek	Woodbury	1102	Sergeant Bluff
Dedham Creek	Dedham Creek	Carroll	1220	Dedham
Deep Creek	Deep Creek	Plymouth	1227	Oyens
Deep Creek	Deep Creek	Fayette	817	Volga
Deep Creek	Deep Creek	Jackson	617	Preston
Deep Creek	Deep Creek	Iowa	778	Victor
Deep River	Deep River	Poweshiek	758	Deep River
Deer Creek	Deer Creek	Clinton	584	Clinton NW
Deer Creek	Deer Creek	Woodbury	1106	Lawton
Deer Creek	Deer Creek	Webster	971	Fort Dodge South
Deer Creek	Deer Creek	Johnson	656	Iowa City West
Deer Creek	Deer Creek	Guthrie	951	Stuart North
Deer Creek	Deer Creek	Washington	653	Wellman
Deer Creek	Deer Creek	Fremont	958	Tabor NE
Deer Creek	Deer Creek	Madison	951	East Peru
Deer Creek	Deer Creek	Polk	886	Des Moines NE
Deer Creek	Deer Creek	Plymouth	1138	Millnerville
Deer Creek	Deer Creek	Plymouth	1204	Kingsley
Deer Creek	Deer Creek	Mitchell	1106	Saint Ansgar
Deer Creek	Deer Creek	Winneshiek	1158	Cresco NE
Deer Creek	Deer Creek	Clayton	1004	Gunder
Deer Creek	Deer Creek	Jones	801	Hopkinton East
Deer Creek	Deer Creek	Tama	810	Tama
Devils Fork	Devils Fork	Greene	1063	Paton
Devils Run	Devils Run	Tama	942	Gladbrook
Devils Run	Devils Run	Iowa	725	Millersburg
Dibble Creek	Dibble Creek	Fayette	827	Elgin
Dick Creek	Dick Creek	Wayne	997	Humeston
Dickey Branch	Dickey Branch	Henry	568	Mount Pleasant
Diggins Slough	Diggins Slough	Louisa	541	Oakville
Dirty Face Creek	Dirty Face Creek	Johnson	630	Hills
Dodges Creek	Dodges Creek	Scott	548	Andalusia
Doe Brook	Doe Brook	Carroll	1037	Glidden
Doe Creek	Doe Creek	Clayton	676	Littleport
Dog Creek	Dog Creek	O'Brien	1217	Sutherland East
Dolbee Creek	Dolbee Creek	Des Moines	535	Oakville
Donaldson Creek	Donaldson Creek	Scott	564	Andalusia
Dousman Creek	Dousman Creek	Allamakee	617	Prairie du Chien
Dowd Creek	Dowd Creek	Hardin	906	Union
Dry Branch	Dry Branch	Marshall	883	LaMoille
Dry Branch	Dry Branch	Plymouth	1224	Union Center SE
Dry Branch	Dry Branch	Fayette	886	Festina
Dry Branch	Dry Branch	Webster	906	Stratford
Dry Branch	Dry Branch	Des Moines	525	Burlington
Dry Creek	Dry Creek	Lee	522	Niota
Dry Creek	Dry Creek	Sioux	1168	Hawarden South
Dry Creek	Dry Creek	Butler	919	Clarksville
Dry Creek	Dry Creek	Buchanan	853	Troy Mills
Dry Creek	Dry Creek	Buchanan	889	Quasqueton
Dry Creek	Dry Creek	Story	935	Ames East
Dry Creek	Dry Creek	Linn	781	Marion
Dry Creek	Dry Creek	Linn	735	Shellsburg
Dry Hollow Creek	Dry Hollow Creek	Allamakee	728	Waterville
Dry Mill Creek	Dry Mill Creek	Clayton	699	Littleport
Dry Run	Dry Run	Osceola	1430	May City
Dry Run	Dry Run	O'Brien	1348	Paullina
Dry Run	Dry Run	O'Brien	1368	Primghar
Dry Run	Dry Run	Winneshiek	860	Decorah
Dry Run	Dry Run	Fayette	1014	Alpha
Dry Run	Dry Run	Bremer	925	Plainfield
Dry Run	Dry Run	Fayette	817	Elgin
Dry Run	Dry Run	Black Hawk	846	Cedar Falls
Duck Creek	Duck Creek	Jackson	587	Springbrook
Duck Creek	Duck Creek	Allamakee	768	Dorchester
Duck Creek	Duck Creek	Scott	561	Silvis
Duckworth Creek	Duckworth Creek	Van Buren	600	Keosauqua
Dugout Creek	Dugout Creek	Dickinson	1407	Lake Park
Dugout Creek	Dugout Creek	Poweshiek	827	Brooklyn
Dunns Creek	Dunns Creek	Montgomery	1033	Villisca
Durion Creek	Durion Creek	Delaware	886	Dyersville West
Dutch Creek	Dutch Creek	Jones	764	Anamosa
Dutch Creek	Dutch Creek	Monona	1125	Mapleton
Dutch Creek	Dutch Creek	Washington	620	Richland
Dye Creek	Dye Creek	Story	925	Collins
Eagle Creek	Eagle Creek	Wright	1043	Woolstock
East Aldrich Creek	East Aldrich Creek	Ida	1220	Holstein SW
East Beaver Creek	East Beaver Creek	Boone	974	Berkley
East Big Creek	East Big Creek	Linn	797	Springville
East Boyer River	East Boyer River	Crawford	1148	Denison
East Branch Beaverdam Creek	East Branch Beaverdam Creek	Cerro Gordo	1056	Sheffield
East Branch Blue Creek	East Branch Blue Creek	Linn	755	Center Point
East Branch Boone River	East Branch Boone River	Wright	1122	Corwith
East Branch Buckley Creek	East Branch Buckley Creek	Mahaska	748	Peoria
East Branch Buffalo Creek	East Branch Buffalo Creek	Buchanan	1030	Oelwein SE
East Branch Iowa River	East Branch Iowa River	Wright	1165	Belmond
East Branch Lick Creek	East Branch Lick Creek	Jefferson	663	Libertyville
East Branch Panther Creek	East Branch Panther Creek	Dallas	935	Panther
East Branch Pine Creek	East Branch Pine Creek	Buchanan	1001	Oelwein SE
East Branch Salt Creek	East Branch Salt Creek	Tama	814	Elberon
East Branch Spring Creek	East Branch Spring Creek	Black Hawk	823	Brandon
East Branch Wapsinonoc Creek	East Branch Wapsinonoc Creek	Muscatine	656	Atalissa
East Branch West Nishnabotna River	East Branch West Nishnabotna River	Pottawattamie	1119	Avoca
East Branch Wolf Creek	East Branch Wolf Creek	Woodbury	1112	Climbing Hill
East Buck Creek	East Buck Creek	Poweshiek	784	Searsboro
East Burr Oak Creek	East Burr Oak Creek	Jasper	863	Alloway Creek
East Buttrick Creek	East Buttrick Creek	Greene	1004	Jefferson East
East Cedar Creek	East Cedar Creek	Calhoun	1115	Lohrville
East Fork Battle Creek	East Fork Battle Creek	Ida	1247	Holstein
East Fork Crooked Creek	East Fork Crooked Creek	Washington	630	Crawfordsville
East Fork Des Moines River	East Fork Des Moines River	Humboldt	1040	Humboldt
East Fork East Nodaway River	East Fork East Nodaway River	Adams	1175	Prescott
East Fork Grand River	East Fork Grand River	Ringgold	997	Hatfield
East Fork Hardin Creek	East Fork Hardin Creek	Greene	1014	Jefferson East
East Fork Sabula Slough	East Fork Sabula Slough	Jackson	584	Savanna
East Fork Wapsipinicon River	East Fork Wapsipinicon River	Bremer	994	Sumner SW
East Fork Wolf Creek	East Fork Wolf Creek	Woodbury	1089	Climbing Hill
East Grand Creek	East Grand Creek	Jasper	794	Colfax
East Indian Creek	East Indian Creek	Linn	827	Marion
East Indian Creek	East Indian Creek	Story	869	Maxwell
East Long Creek	East Long Creek	Clarke	1010	Hopeville
East Mill Creek	East Mill Creek	Page	1010	Clearmont
East Morningside Creek	East Morningside Creek	Woodbury	1125	Sergeant Bluff
East Nishnabotna River	East Nishnabotna River	Fremont	909	Riverton
East Nodaway River	East Nodaway River	Page	945	Clarinda South
East Otter Creek	East Otter Creek	Linn	771	Cedar Rapids North
East Pine Creek	East Pine Creek	Winneshiek	1096	Bluffton
East Platte River	East Platte River	Adams	1145	Kent
East River	East River	Taylor	1161	Merle Junction
East Soldier River	East Soldier River	Monona	1132	Ute
East Tarkio Creek	East Tarkio Creek	Page	1007	Coin
East Tarkio Creek	East Tarkio Creek	Montgomery	1158	Wallin
Eddy Creek	Eddy Creek	Kossuth	1188	Sexton
Elbow Creek	Elbow Creek	Linn	738	Springville
Eldridge Slough	Eldridge Slough	Jackson	587	Savanna
Elk Creek	Elk Creek	Harrison	1093	Moorhead SE
Elk Creek	Elk Creek	Monona	1073	Moorhead
Elk Creek	Elk Creek	Hardin	955	Steamboat Rock
Elk Creek	Elk Creek	Clay	1276	Gillett Grove
Elk Creek	Elk Creek	Ida	1220	Ida Grove NW
Elk Creek	Elk Creek	Worth	1165	Manly
Elk Creek	Elk Creek	Chickasaw	1115	Elma
Elk Creek	Elk Creek	Clayton	643	Garber
Elk Creek	Elk Creek	Crawford	1230	Irwin
Elk Creek	Elk Creek	Mahaska	718	Peoria
Elk Creek	Elk Creek	Decatur	912	Lamoni North
Elk Run	Elk Run	Hardin	1060	Iowa Falls West
Elk Run	Elk Run	Black Hawk	817	Waterloo South
Elk Run	Elk Run	Carroll	1073	Lanesboro
Elk Run	Elk Run	Tama	850	Tama
Elkhorn Creek	Elkhorn Creek	Cass	1194	Prairie Rose Lake
Elkhorn Creek	Elkhorn Creek	Boone	886	Fraser
Elkhorn Creek	Elkhorn Creek	Webster	988	Fort Dodge South
Eller Branch	Eller Branch	Cass	1161	Wiota
Elliott Creek	Elliott Creek	Woodbury	1086	Lawton
Elliott Creek	Elliott Creek	Winneshiek	1152	Cresco NE
Elm Branch	Elm Branch	Dallas	915	Perry
Elm Creek	Elm Creek	Shelby	1188	Jacksonville
Elm Creek	Elm Creek	Cass	1204	Dewey
Elwood Creek	Elwood Creek	Clinton	692	Maquoketa
Elys Creek	Elys Creek	Van Buren	568	Keosauqua
Emery Creek	Emery Creek	Lyon	1306	George West
Emigrant Creek	Emigrant Creek	Crawford	1204	Charter Oak
Engels Creek	Engels Creek	O'Brien	1401	Sheldon
English Creek	English Creek	Poweshiek	771	Searsboro
English Creek	English Creek	Marion	686	Harvey
English River	English River	Washington	610	Riverside
Ensign Creek	Ensign Creek	Clayton	899	Volga
Epping Creek	Epping Creek	O'Brien	1447	Plessis
Erickson Spring Branch	Erickson Spring Branch	Allamakee	699	Church
Esmay Slough	Esmay Slough	Jackson	584	Savanna
Etter Creek	Etter Creek	Chickasaw	1020	Frederika
Euclid Creek	Euclid Creek	Harrison	994	Missouri Valley
Eversoll Creek	Eversoll Creek	Boone	860	Luther
Farm Creek	Farm Creek	Montgomery	1014	Carson
Farm Creek	Farm Creek	Jones	725	Canton
Farmers Creek	Farmers Creek	Jackson	673	Fulton
Fawn Creek	Fawn Creek	Jones	764	Anamosa
Fenchel Creek	Fenchel Creek	Delaware	1024	Strawberry Point
Fern Creek	Fern Creek	Woodbury	1060	Oto
Fiddle Creek	Fiddle Creek	Cherokee	1250	Fielding
First Creek	First Creek	Boone	866	Boone West
Fish Creek	Fish Creek	Mitchell	1073	Floyd
Fish Creek	Fish Creek	Henry	561	Salem
Fish Lake	Fish Lake	Harrison	1004	Modale
Fisher Creek	Fisher Creek	Fremont	948	Shenandoah West
Fitzgerald Creek	Fitzgerald Creek	Winneshiek	827	Castalia
Fivemile Creek	Fivemile Creek	Wayne	961	Corydon NE
Flank Creek	Flank Creek	Warren	817	Newbern
Flatrock Creek	Flatrock Creek	Van Buren	571	Bonaparte
Fletchall Creek	Fletchall Creek	Ringgold	968	Blockton SE
Flint Creek	Flint Creek	Des Moines	525	Burlington
Flood Creek	Flood Creek	Butler	932	Clarksville
Floyd River	Floyd River	Woodbury	1066	Sioux City South
Fly Creek	Fly Creek	Polk	797	Beech
Fockler Creek	Fockler Creek	Butler	1020	Ackley
Fork Creek	Fork Creek	Lee	518	Fort Madison
Fountain Springs Creek	Fountain Springs Creek	Delaware	837	Greeley
Fourmile Creek	Fourmile Creek	Cass	1152	Anita SW
Fourmile Creek	Fourmile Creek	Audubon	1266	Exira East
Fourmile Creek	Fourmile Creek	Cherokee	1138	Quimby
Fourmile Creek	Fourmile Creek	Polk	774	Des Moines SE
Fourmile Creek	Fourmile Creek	Union	1001	Tingley NE
Fourmile Creek	Fourmile Creek	Page	965	Shenandoah East
Fourmile Creek	Fourmile Creek	Kossuth	1096	Saint Joseph
Fourmile Creek	Fourmile Creek	Tama	899	Gladbrook NE
Fox Creek	Fox Creek	Dallas	866	Commerce
Fox River	Fox River	Van Buren	643	Mount Sterling
Fox Run	Fox Run	Buena Vista	1230	Peterson
French Creek	French Creek	Allamakee	650	Waukon NW
French Creek	French Creek	Lee	518	Fort Madison
Frink Creek	Frink Creek	Polk	794	Des Moines SW
Frog Creek	Frog Creek	Dallas	919	Perry
Frost Creek	Frost Creek	Guthrie	1132	Guthrie Center West
Fudge Creek	Fudge Creek	Wapello	650	Chillicothe
Fullington Creek	Fullington Creek	Jasper	781	Colfax
Fultons Creek	Fultons Creek	Montgomery	1040	Morton Mills
Galls Creek	Galls Creek	Hancock	1197	Garner
Gard Creek	Gard Creek	Monona	1050	Onawa
Gere Creek	Gere Creek	Cherokee	1260	Cherokee North
German Creek	German Creek	Keokuk	656	Sigourney
Ginger Creek	Ginger Creek	O'Brien	1401	Sutherland West
Given Creek	Given Creek	Tama	925	Gladbrook NE
Gizzard Creek	Gizzard Creek	Floyd	965	Nashua
Glover Creek	Glover Creek	Fayette	1053	West Union
Glynn Creek	Glynn Creek	Scott	633	Eldridge
Gobbler Creek	Gobbler Creek	Keokuk	679	Hedrick
Golden Branch	Golden Branch	Delaware	919	Ryan
Goodwater Creek	Goodwater Creek	Lucas	912	Russell
Goose Creek	Goose Creek	Lee	597	Argyle
Goose Creek	Goose Creek	Scott	614	Davenport East
Goose Creek	Goose Creek	Louisa	591	Cotter
Goose Run	Goose Run	Benton	787	Center Point SW
Gooseberry Creek	Gooseberry Creek	Ringgold	1060	Mount Ayr
Gower Creek	Gower Creek	Johnson	659	Cedar Bluff
Gran Creek	Gran Creek	Butler	971	Aplington
Granger Creek	Granger Creek	Dubuque	594	Dubuque South
Grannis Creek	Grannis Creek	Fayette	879	Wadena
Grants Creek	Grants Creek	Lee	515	Croton
Granville Creek	Granville Creek	Sioux	1348	Granville West
Grape Chute	Grape Chute	Lee	522	Dallas City
Gray Creek	Gray Creek	Cherokee	1201	Cherokee North
Graybill Creek	Graybill Creek	Pottawattamie	1047	Carson
Grays Creek	Grays Creek	Monroe	663	Eddyville
Green Creek	Green Creek	Henry	591	Trenton
Greenbrier Creek	Greenbrier Creek	Dallas	945	Dawson
Gritter Creek	Gritter Creek	Iowa	715	North English
Grove Creek	Grove Creek	Delaware	846	Hopkinton West
Grubb Run	Grubb Run	Jefferson	663	Libertyville
Gypsum Creek	Gypsum Creek	Webster	958	Fort Dodge South
Haberkorn Creek	Haberkorn Creek	Dubuque	705	Sherrill
Hainer Creek	Hainer Creek	Jackson	633	Delmar North
Halfway Creek	Halfway Creek	Ida	1257	Galva
Hall Creek	Hall Creek	Monona	1076	Moorhead NW
Ham Branch	Ham Branch	Appanoose	906	Mystic
Hamilton Creek	Hamilton Creek	Lucas	994	Derby
Hammers Creek	Hammers Creek	Grundy	873	New Hartford
Hanner Creek	Hanner Creek	Clarke	965	Truro
Happy Run	Happy Run	Greene	1070	Churdan
Hardin Creek	Hardin Creek	Greene	961	Cooper
Harris Grove Creek	Harris Grove Creek	Harrison	1027	Beebeetown
Harrows Branch	Harrows Branch	Wapello	643	Ottumwa North
Harter Creek	Harter Creek	Buchanan	906	Independence
Hartgrave Creek	Hartgrave Creek	Butler	965	Dumont South
Harts Mill Creek	Harts Mill Creek	Clinton	1050	Corydon NE
Haugh Creek	Haugh Creek	Fayette	1027	Alpha
Hawk Creek	Hawk Creek	Woodbury	1181	Correctionville SE
Hawk Run	Hawk Run	Marion	755	Knoxville SW
Hawkeye Creek	Hawkeye Creek	Des Moines	535	Oakville
Hay Branch	Hay Branch	Madison	892	Truro
Hay Creek	Hay Creek	Crawford	1227	Vail
Hazelton Creek	Hazelton Creek	Buchanan	978	Hazleton
Heatons Creek	Heatons Creek	Linn	807	Prairieburg
Heisler Creek	Heisler Creek	Monona	1102	Mapleton
Helmer Creek	Helmer Creek	Jones	810	Anamosa NE
Henchal Creek	Henchal Creek	Pottawattamie	1050	McClelland
Henry Creek	Henry Creek	O'Brien	1214	Sutherland East
Hershey Slough	Hershey Slough	Muscatine	545	Illinois City
Hewett Creek	Hewett Creek	Clayton	761	Volga
Hewitt Creek	Hewitt Creek	Dubuque	938	Dyersville East
Hickory Creek	Hickory Creek	Allamakee	758	Monona
Hickory Creek	Hickory Creek	Appanoose	951	Seymour East
Hickory Creek	Hickory Creek	Appanoose	827	Centerville East
Hickory Creek	Hickory Creek	Marion	781	Attica
Hickory Creek	Hickory Creek	Scott	650	Dixon
Hickory Creek	Hickory Creek	Davis	705	Milton
Hickory Creek	Hickory Creek	Dubuque	961	New Vienna
Hickory Creek	Hickory Creek	Dallas	879	Dallas Center
Hilton Creek	Hilton Creek	Iowa	728	Marengo
Hinkle Creek	Hinkle Creek	Benton	771	Vinton
Hockeys Slough	Hockeys Slough	Johnson	617	Nichols
Hoffman Creek	Hoffman Creek	Harrison	1060	Logan
Hog Branch	Hog Branch	Taylor	1152	Merle Junction
Hog Creek	Hog Creek	Decatur	906	Woodland
Hog Creek	Hog Creek	Harrison	1007	Beebeetown
Hog Run	Hog Run	Ida	1263	Galva
Hog Run	Hog Run	Iowa	771	Williamsburg
Hog Run	Hog Run	Tama	787	Belle Plaine
Hog Theif Creek	Hog Theif Creek	Lee	482	Keokuk
Hogans Branch	Hogans Branch	Dubuque	810	Epworth
Holcomb Creek	Holcomb Creek	Van Buren	587	Douds
Holland Creek	Holland Creek	Grundy	974	Holland
Holliday Creek	Holliday Creek	Webster	948	Evanston
Honey Creek	Honey Creek	Des Moines	558	West Burlington
Honey Creek	Honey Creek	Washington	646	Richland
Honey Creek	Honey Creek	Marion	696	Lovilia
Honey Creek	Honey Creek	Clinton	676	Goose Lake
Honey Creek	Honey Creek	Boone	863	Boone West
Honey Creek	Honey Creek	Buchanan	856	Troy Mills
Honey Creek	Honey Creek	Wapello	692	Abingdon
Honey Creek	Honey Creek	Henry	577	Lockridge East
Honey Creek	Honey Creek	Fremont	932	Randolph
Honey Creek	Honey Creek	Van Buren	548	Bonaparte
Honey Creek	Honey Creek	Lucas	909	Melrose
Honey Creek	Honey Creek	Appanoose	906	Mystic
Honey Creek	Honey Creek	Lucas	955	Corydon NE
Honey Creek	Honey Creek	Clayton	689	Littleport
Honey Creek	Honey Creek	Delaware	925	Thorpe
Honey Creek	Honey Creek	Marshall	896	Union
Honey Creek	Honey Creek	Iowa	751	Ladora
Honey Creek	Honey Creek	Audubon	1237	Exira East
Honey Creek	Honey Creek	Pottawattamie	984	Loveland
Honey Creek	Honey Creek	Louisa	584	Cotter
Honey Creek	Honey Creek	Louisa	558	Wapello
Hoosier Creek	Hoosier Creek	Linn	692	Ely
Hoosier Creek	Hoosier Creek	Clarke	971	Weldon
Horse Creek	Horse Creek	Fremont	912	Nebraska City
Horton Creek	Horton Creek	Bremer	922	Plainfield
Horton Creek	Horton Creek	Lee	518	Nauvoo
Hoskins Creek	Hoskins Creek	Ida	1250	Ida Grove
Howard Creek	Howard Creek	Clayton	840	Saint Olaf
Howerdon Creek	Howerdon Creek	Madison	971	Earlham East
Hoyts Branch	Hoyts Branch	Cass	1194	Anita SW
Hubbel Slough	Hubbel Slough	Jackson	587	Savanna
Hunter Branch	Hunter Branch	Fremont	955	Shenandoah West
Hunter Creek	Hunter Creek	Buchanan	925	Hazleton
Hunter Creek	Hunter Creek	Wayne	971	Garden Grove
Hupp Creek	Hupp Creek	Jefferson	663	Libertyville
Hurstville Branch	Hurstville Branch	Jackson	653	Maquoketa
Ideal Creek	Ideal Creek	Cerro Gordo	1056	Mason City
Indian Creek	Indian Creek	Lucas	866	Lucas
Indian Creek	Indian Creek	Black Hawk	807	Gilbertville
Indian Creek	Indian Creek	Washington	617	Brighton
Indian Creek	Indian Creek	Plymouth	1145	Chatsworth
Indian Creek	Indian Creek	Sac	1158	Grant City
Indian Creek	Indian Creek	Linn	696	Bertram
Indian Creek	Indian Creek	Tama	830	Montour
Indian Creek	Indian Creek	Cass	1093	Atlantic SW
Indian Creek	Indian Creek	Louisa	568	Wapello
Indian Creek	Indian Creek	Pottawattamie	971	Council Bluffs South
Inghram Branch	Inghram Branch	Monroe	807	Iconium
Iowa River	Iowa River	Louisa	535	Toolesboro
Iowa Slough	Iowa Slough	Louisa	531	Keithsburg
Irish Hollow Creek	Irish Hollow Creek	Allamakee	627	New Albin
Jack Creek	Jack Creek	Lee	528	Nauvoo
Jackson Branch	Jackson Branch	Appanoose	906	Plano
Jackson Creek	Jackson Creek	Wayne	928	Confidence
Jess Branch	Jess Branch	Jackson	656	Andrew
Jim Branch	Jim Branch	Cass	1161	Wiota
Jim Creek	Jim Creek	Pottawattamie	1115	Avoca
Jim Creek	Jim Creek	Boone	958	Berkley
Jim Creek	Jim Creek	Madison	1073	Earlham West
Johns Creek	Johns Creek	Plymouth	1201	Kingsley
Johns Creek	Johns Creek	Dubuque	830	Fillmore
Johnson Creek	Johnson Creek	Dallas	837	Commerce
Johnson Creek	Johnson Creek	O'Brien	1381	Primghar
Johnson Creek	Johnson Creek	Butler	922	Parkersburg
Johles Creek	Johles Creek	Clayton	623	Colesburg
Jonathan Creek	Jonathan Creek	Decatur	942	Garden Grove SW
Jones Branch	Jones Branch	Jefferson	663	Lockridge West
Jones Creek	Jones Creek	Allamakee	830	Church
Jones Creek	Jones Creek	Scott	597	Malone
Jones Creek	Jones Creek	Madison	856	Saint Charles
Jordan Creek	Jordan Creek	Tama	843	Gladbrook SE
Jordan Creek	Jordan Creek	O'Brien	1263	Sutherland East
Jordan Creek	Jordan Creek	Monona	1086	Moorhead
Jordan Creek	Jordan Creek	Johnson	715	Ely
Jordan Creek	Jordan Creek	Iowa	768	Victor
Jordan Creek	Jordan Creek	Pottawattamie	1060	Carson NE
Jordan Creek	Jordan Creek	Wayne	938	Confidence
Jordan Creek	Jordan Creek	Polk	807	Des Moines SW
Joy Creek	Joy Creek	Plymouth	1106	Elk Point NE
Jurdan Creek	Jurdan Creek	Jones	764	Scotch Grove
Justins Creek	Justins Creek	Linn	827	Central City
Keg Creek	Keg Creek	Mills	951	Rock Bluff
Keigley Branch	Keigley Branch	Story	919	Ames East
Keller Creek	Keller Creek	Woodbury	1197	Correctionville SE
Kemp Creek	Kemp Creek	Adams	1060	Brooks
Kettle Creek	Kettle Creek	Wapello	633	Ottumwa North
Kibbe Creek	Kibbe Creek	Tama	869	Clutier
Kidds Creek	Kidds Creek	Shelby	1237	Defiance
Kilgore Creek	Kilgore Creek	Decatur	889	Pleasanton
Kilson Creek	Kilson Creek	Butler	938	Butler Center
Kilsons Branch	Kilsons Branch	Butler	938	Parkersburg
King Creek	King Creek	Crawford	1253	Vail
Kinser Creek	Kinser Creek	Monroe	833	Moravia
Kirk Branch	Kirk Branch	Marion	787	Newbern
Kitty Creek	Kitty Creek	Jones	794	Monticello
Kleinlein Creek	Kleinlein Creek	Clayton	837	Edgewood
Knack Creek	Knack Creek	Webster	991	Lehigh
Knapp Creek	Knapp Creek	Johnson	692	Amana
Knotty Creek	Knotty Creek	Des Moines	545	West Burlington
Koker Creek	Koker Creek	Woodbury	1142	Danbury
Kosar Branch	Kosar Branch	Adams	1178	Prescott
Krumm Creek	Krumm Creek	Winneshiek	1027	Fort Atkinson
L Esmay Slough	L Esmay Slough	Jackson	584	Savanna
Lake Creek	Lake Creek	O'Brien	1460	Gaza
Lake Creek	Lake Creek	Calhoun	1089	Carroll NE
Lamalees Creek	Lamalees Creek	Lee	518	Keokuk
Lamkin Creek	Lamkin Creek	O'Brien	1378	Sheldon
Lamont Creek	Lamont Creek	Buchanan	1024	Lamont
Lange Creek	Lange Creek	O'Brien	1325	Paullina
Lapworth Creek	Lapworth Creek	Pottawattamie	994	Omaha North
Lawrence Creek	Lawrence Creek	Henry	682	New London
Lead Island Chute	Lead Island Chute	Lee	518	Fort Madison
Ledgewood Creek	Ledgewood Creek	Fremont	919	Riverton
Leisure Creek	Leisure Creek	Dubuque	604	Dubuque North
Lexington Creek	Lexington Creek	Clay	1286	Gillett Grove
Lexington Creek	Lexington Creek	Van Buren	545	Bonaparte
Lick Branch	Lick Branch	Decatur	863	Lineville
Lick Creek	Lick Creek	Davis	663	Floris
Lick Creek	Lick Creek	Van Buren	594	Mount Zion
Lick Creek	Lick Creek	Lee	518	Croton
Lillibridge Creek	Lillibridge Creek	Cerro Gordo	1043	Sheffield
Lime Creek	Lime Creek	Washington	653	Wellman
Lime Creek	Lime Creek	Benton	787	Brandon
Lime Creek	Lime Creek	Sac	1224	Boyer
Lime Creek	Lime Creek	Delaware	876	Hopkinton West
Lindsey Creek	Lindsey Creek	Kossuth	1201	Woden
Lindsey Creek	Lindsey Creek	Delaware	974	Thorpe
Lingle Creek	Lingle Creek	Johnson	692	Ely
Linn Creek	Linn Creek	Marshall	860	Le Grand
Little Asher Creek	Little Asher Creek	Marshall	928	Conrad West
Little Avery Creek	Little Avery Creek	Monroe	758	Avery
Little Bear Creek	Little Bear Creek	Jones	807	Wyoming West
Little Bear Creek	Little Bear Creek	Benton	748	Shellsburg
Little Bear Creek	Little Bear Creek	Poweshiek	794	Victor
Little Bear Creek	Little Bear Creek	Iowa	745	Ladora
Little Beaver Creek	Little Beaver Creek	Floyd	1014	Rockford
Little Beaver Creek	Little Beaver Creek	Greene	994	Grand Junction
Little Beaver Creek	Little Beaver Creek	Boone	892	Woodward
Little Beaver Creek	Little Beaver Creek	Hardin	965	New Providence
Little Beaver Creek	Little Beaver Creek	Polk	814	Des Moines NW
Little Bluff Creek	Little Bluff Creek	Mahaska	686	Eddyville
Little Buffalo Creek	Little Buffalo Creek	Kossuth	1145	Titonka
Little Cedar Creek	Little Cedar Creek	Pocahontas	1214	Fonda
Little Cedar Creek	Little Cedar Creek	Henry	587	Hillsboro
Little Cedar Creek	Little Cedar Creek	Wapello	722	Farson
Little Cedar River	Little Cedar River	Chickasaw	945	Nashua
Little Competine Creek	Little Competine Creek	Jefferson	712	Abingdon
Little Coon Creek	Little Coon Creek	Tama	886	Traer
Little Creek	Little Creek	Keokuk	692	Kinross
Little Creek	Little Creek	Polk	925	Granger
Little Creek	Little Creek	Van Buren	650	Mount Zion
Little Creek	Little Creek	Mills	984	Tabor NE
Little Eagle Creek	Little Eagle Creek	Wright	1119	Holmes
Little Elk Creek	Little Elk Creek	Jasper	751	Killduff
Little Elkhorn Creek	Little Elkhorn Creek	Muscatine	666	Durant
Little Flint Creek	Little Flint Creek	Des Moines	564	West Burlington
Little Floyd River	Little Floyd River	Sioux	1358	Sheldon
Little Fourmile Creek	Little Fourmile Creek	Polk	794	Des Moines SE
Little Indian Creek	Little Indian Creek	Van Buren	538	Bonaparte
Little Indian Creek	Little Indian Creek	Louisa	581	Columbus Junction
Little Indian Creek	Little Indian Creek	Audubon	1276	Exira West
Little Keg Creek	Little Keg Creek	Pottawattamie	1053	McClelland
Little Lick Creek	Little Lick Creek	Van Buren	597	Mount Zion
Little Lick Creek	Little Lick Creek	Van Buren	650	Libertyville
Little Lime Creek	Little Lime Creek	Cerro Gordo	1027	Mason City SE
Little Maquoketa River	Little Maquoketa River	Dubuque	604	Dubuque North
Little Meadow Creek	Little Meadow Creek	Clay	1335	Dickens
Little Mill Creek	Little Mill Creek	Jackson	614	Bellevue
Little Mill Creek	Little Mill Creek	Clinton	623	Camanche
Little Minerva Branch	Little Minerva Branch	Marshall	892	LaMoille
Little Mosquito Creek	Little Mosquito Creek	Pottawattamie	997	Council Bluffs North
Little Muchakinock Creek	Little Muchakinock Creek	Mahaska	702	Oskaloosa
Little Muddy Creek	Little Muddy Creek	Clay	1306	Dickens
Little Ocheyedan River	Little Ocheyedan River	Osceola	1401	May City
Little Paint Creek	Little Paint Creek	Allamakee	640	Harpers Ferry
Little Pigeon Creek	Little Pigeon Creek	Harrison	1201	Portsmouth
Little Potomac Creek	Little Potomac Creek	Henry	659	Swedesburg
Little Rollins Creek	Little Rollins Creek	Van Buren	535	Croton
Little Silver Creek	Little Silver Creek	Shelby	1197	Shelby
Little Silver Creek	Little Silver Creek	Pottawattamie	1070	Treynor
Little Snipe Creek	Little Snipe Creek	Jasper	876	Baxter SE
Little Soap Creek	Little Soap Creek	Davis	627	Agency
Little Soldier Creek	Little Soldier Creek	Ida	1316	Schleswig
Little Sugar Creek	Little Sugar Creek	Lee	633	Donnellson
Little Tarkio Creek	Little Tarkio Creek	Mills	1125	Stanton
Little Turkey Creek	Little Turkey Creek	Howard	1155	Saude
Little Turkey River	Little Turkey River	Clayton	610	Turkey River
Little Turkey River	Little Turkey River	Fayette	912	Festina
Little Volga River	Little Volga River	Fayette	1050	Maynard
Little Walnut Creek	Little Walnut Creek	Dallas	886	Grimes
Little Walnut Creek	Little Walnut Creek	Pottawattamie	1165	Atlantic SW
Little Walnut Creek	Little Walnut Creek	Appanoose	850	Mystic
Little Wapsipinicon River	Little Wapsipinicon River	Chickasaw	1047	Tripoli NW
Little Wapsipinicon River	Little Wapsipinicon River	Buchanan	915	Littleton
Little Waterman Creek	Little Waterman Creek	O'Brien	1453	Gaza
Little Whisky Creek	Little Whisky Creek	Woodbury	1099	Sergeant Bluff
Little White Breast Creek	Little White Breast Creek	Lucas	827	Newbern
Little Wolf Creek	Little Wolf Creek	Tama	951	Gladbrook
Lizard Creek	Lizard Creek	Lyon	1266	Alvord
Lizard Creek	Lizard Creek	Webster	974	Fort Dodge North
Lizard Creek	Lizard Creek	Clinton	673	Wheatland
Locke Branch	Locke Branch	Davis	741	Selma
Lone Grove Creek	Lone Grove Creek	Guthrie	1122	Guthrie Center West
Lone Tree Branch	Lone Tree Branch	Cass	1129	Anita SW
Lone Tree Branch	Lone Tree Branch	Cass	1083	Griswold
Lone Tree Creek	Lone Tree Creek	Benton	732	Shellsburg
Lone Willow Creek	Lone Willow Creek	Audubon	1293	Manning SE
Long Branch	Long Branch	Guthrie	938	Stuart North
Long Branch	Long Branch	Shelby	1240	Jacksonville
Long Branch	Long Branch	Taylor	1033	Hawleyville
Long Branch	Long Branch	Page	955	Blanchard
Long Branch	Long Branch	Marion	814	Melcher-Dallas
Long Creek	Long Creek	Decatur	925	Grand River
Long Creek	Long Creek	Louisa	571	Cairo
Long Creek	Long Creek	Des Moines	528	Dallas City
Long Dick Creek	Long Dick Creek	Story	951	Story City
Longs Branch	Longs Branch	Montgomery	1043	Morton Mills
Lonzo Creek	Lonzo Creek	Taylor	1168	Corning South
Lost Branch	Lost Branch	Lucas	925	Russell
Lost Branch	Lost Branch	Greene	1073	Paton
Lost Creek	Lost Creek	Jones	784	Fillmore
Lost Creek	Lost Creek	Scott	581	Cordova
Lost Creek	Lost Creek	Lee	518	Fort Madison
Lost Creek	Lost Creek	Mahaska	666	Eddyville
Lost Grove Creek	Lost Grove Creek	Greene	1102	Lanyon
Lost Island Outlet	Lost Island Outlet	Clay	1293	Gillett Grove
Luicks Creek	Luicks Creek	Wright	1158	Belmond
Lum Hollow Creek	Lum Hollow Creek	Woodbury	1079	Climbing Hill
Lund Creek	Lund Creek	Ida	1165	Battle Creek
Lundys Creek	Lundys Creek	Boone	928	Ames West
Lutes Creek	Lutes Creek	Marshall	912	Laurel
Lux Creek	Lux Creek	Jackson	636	La Motte
Lyons Chute	Lyons Chute	Clinton	574	Clinton NW
Lyons Creek	Lyons Creek	Hamilton	1014	Webster City
Lytle Creek	Lytle Creek	Jackson	692	Leisure Lake
Mad Creek	Mad Creek	Muscatine	538	Muscatine
Malone Creek	Malone Creek	Buchanan	889	Independence
Malony Branch	Malony Branch	Crawford	1355	Manilla
Manson Branch	Manson Branch	Appanoose	886	Centerville West
Maple Creek	Maple Creek	Cherokee	1332	Aurelia
Maple River	Maple River	Monona	1033	Moorhead NW
Maquoketa River	Maquoketa River	Jackson	587	Green Island
Marks Branch	Marks Branch	Decatur	892	Pleasanton
Marrowbone Creek	Marrowbone Creek	Carroll	1066	Lanesboro
Martha Creek	Martha Creek	Winneshiek	1168	Cresco NE
Martin Creek	Martin Creek	Scott	597	Malone
Martin Creek	Martin Creek	Linn	732	Bertram
Marvel Creek	Marvel Creek	Adair	1175	Arbor Hill
Mason Creek	Mason Creek	Scott	630	De Witt
Mason Creek	Mason Creek	Guthrie	1063	Guthrie Center East
Mason Creek	Mason Creek	Cerro Gordo	1056	Mason City
Mattix Branch	Mattix Branch	Keokuk	682	Rose Hill
Maynes Creek	Maynes Creek	Butler	955	Dumont South
McAllister Creek	McAllister Creek	Johnson	692	Swisher
McCarty Creek	McCarty Creek	Scott	571	Port Byron
McCleerey Creek	McCleerey Creek	Monona	1083	Mapleton
McClure Creek	McClure Creek	Butler	892	Coster
McCreath Creek	McCreath Creek	O'Brien	1312	Hartley SW
McDonald Creek	McDonald Creek	Scott	607	De Witt
McElhaney Creek	McElhaney Creek	Woodbury	1132	Moville
McGruder Creek	McGruder Creek	Decatur	945	Davis City
McMaster Creek	McMaster Creek	Monona	1043	Smithland
McPherron Creek	McPherron Creek	Fremont	978	Tabor
Mead Creek	Mead Creek	Howard	1155	Elma
Menneika Creek	Menneika Creek	Wapello	682	Ottumwa North
Metz Creek	Metz Creek	Adams	1171	Lenox
Michaels Creek	Michaels Creek	Louisa	538	Toolesboro
Middle Avery Creek	Middle Avery Creek	Wapello	650	Chillicothe
Middle Beaver Creek	Middle Beaver Creek	Boone	974	Berkley
Middle Branch Boone River	Middle Branch Boone River	Hancock	1122	Kanawha
Middle Branch Buckley Creek	Middle Branch Buckley Creek	Mahaska	758	Peoria
Middle Branch One Hundred and Two River	Middle Branch One Hundred and Two River	Taylor	1119	Guss
Middle Branch Wapsinonoc Creek	Middle Branch Wapsinonoc Creek	Muscatine	656	Atalissa
Middle Buck Creek	Middle Buck Creek	Poweshiek	784	Searsboro
Middle Creek	Middle Creek	Mahaska	699	Rose Hill
Middle Creek	Middle Creek	Warren	883	Otley
Middle English River	Middle English River	Iowa	712	North English
Middle Fork Catfish Creek	Middle Fork Catfish Creek	Dubuque	607	Dubuque South
Middle Fork Little Maquoketa River	Middle Fork Little Maquoketa River	Dubuque	663	Sherrill
Middle Fork South Beaver Creek	Middle Fork South Beaver Creek	Grundy	961	Holland
Middle Mill Creek	Middle Mill Creek	Page	1014	Clearmont
Middle Minerva Creek	Middle Minerva Creek	Marshall	935	State Center
Middle Nodaway River	Middle Nodaway River	Montgomery	1007	Villisca
Middle Otter Creek	Middle Otter Creek	Clarke	932	Jamison
Middle Platte River	Middle Platte River	Taylor	1125	Kent
Middle Raccoon River	Middle Raccoon River	Dallas	919	Redfield
Middle River	Middle River	Warren	758	Hartford
Middle Silver Creek	Middle Silver Creek	Pottawattamie	1030	Treynor
Middle Soldier River	Middle Soldier River	Monona	1168	Ute
Middle Timber Creek	Middle Timber Creek	Marshall	886	Laurel
Middle Walnut Creek	Middle Walnut Creek	Jefferson	646	Fairfield North
Middle Willow Creek	Middle Willow Creek	Crawford	1263	Dunlap NW
Miles Branch	Miles Branch	Davis	646	Selma
Cotton Creek	Cotton Creek	Warren	814	Newbern
Mill Branch	Mill Branch	Jasper	755	Runnells
Mill Creek	Mill Creek	Johnson	673	Solon
Mill Creek	Mill Creek	Boone	866	Boone West
Mill Creek	Mill Creek	Clayton	650	Colesburg
Mill Creek	Mill Creek	Cherokee	1175	Cherokee North
Mill Creek	Mill Creek	Jackson	587	Bellevue
Mill Creek	Mill Creek	Harrison	1063	Dunlap SW
Mill Creek	Mill Creek	Jones	712	Oxford Junction
Mill Creek	Mill Creek	Clinton	574	Clinton
Mill Creek	Mill Creek	Johnson	718	Ely
Mill Creek	Mill Creek	Fremont	912	Riverton
Mill Race	Mill Race	Fayette	807	Elgin
Mill Slough	Mill Slough	Dallas	873	Adel
Miller Creek	Miller Creek	Woodbury	1063	Oto
Miller Creek	Miller Creek	Boone	981	Story City
Miller Creek	Miller Creek	Black Hawk	807	Gilbertville
Miller Creek	Miller Creek	Crawford	1230	Vail
Miller Creek	Miller Creek	Johnson	692	Amish
Miller Creek	Miller Creek	Monroe	659	Eddyville
Mineral Branch	Mineral Branch	Boone	892	Fraser
Mineral Creek	Mineral Creek	Allamakee	669	Dorchester
Mineral Creek	Mineral Creek	Jackson	699	Leisure Lake
Miners Creek	Miners Creek	Clayton	607	Guttenberg
Minerva Creek	Minerva Creek	Marshall	886	LaMoille
Minimum Creek	Minimum Creek	Pottawattamie	1076	Oakland
Mink Creek	Mink Creek	Plymouth	1178	Union Center NW
Mink Creek	Mink Creek	Fayette	817	Volga
Minnehaha Creek	Minnehaha Creek	Grundy	958	Lincoln
Minnesota Slough	Minnesota Slough	Allamakee	623	De Soto
Minnie Brook	Minnie Brook	Plymouth	1240	Union Center NW
Minnow Creek	Minnow Creek	Tama	833	Tama
Minor Creek	Minor Creek	Howard	1093	Cresco NE
Mitchell Creek	Mitchell Creek	Jefferson	653	Libertyville
Mitchell Creek	Mitchell Creek	Mahaska	709	New Sharon
Moine Creek	Moine Creek	Fayette	991	Wadena
Monkey Run	Monkey Run	Louisa	587	Cotter
Monks Creek	Monks Creek	Lee	512	Argyle
Montgomery Creek	Montgomery Creek	Boone	951	Ames West
Montgomery Creek	Montgomery Creek	Clay	1273	Webb
Moody Run	Moody Run	Clayton	630	Clayton
Moon Creek	Moon Creek	Mahaska	725	Union Mills
Moon Creek	Moon Creek	Lyon	1335	Rock Rapids
Mooney Creek	Mooney Creek	Johnson	705	Amish
Moore Creek	Moore Creek	Adams	1178	Dewey
Moore Creek	Moore Creek	Scott	548	Andalusia
Moorhead Creek	Moorhead Creek	Woodbury	1158	Holstein SW
Moose Creek	Moose Creek	Woodbury	1168	Climbing Hill
Morgan Branch	Morgan Branch	Davis	646	Agency
Morgan Creek	Morgan Creek	Linn	722	Cedar Rapids North
Mormon Branch	Mormon Branch	Mills	1010	Coburg
Mormon Branch	Mormon Branch	Monroe	820	Iconium
Mormon Branch	Mormon Branch	Monroe	988	Iconium
Mormon Creek	Mormon Creek	Monroe	820	Blakesburg
Mormon Pool	Mormon Pool	Decatur	997	Garden Grove SW
Moser Creek	Moser Creek	Shelby	1263	Earling
Mosquito Creek	Mosquito Creek	Grundy	922	Reinbeck
Mosquito Creek	Mosquito Creek	Polk	840	Granger
Mosquito Creek	Mosquito Creek	Pottawattamie	955	Council Bluffs South
Mosquito Creek	Mosquito Creek	Dallas	922	Redfield
Mount Zion Branch	Mount Zion Branch	Adams	1148	Prescott
Mouse Creek	Mouse Creek	Lucas	899	Lucas
Muchakinock Creek	Muchakinock Creek	Mahaska	656	Eddyville
Muchikinock Creek	Muchikinock Creek	Polk	837	Des Moines NE
Mud Creek	Mud Creek	Van Buren	548	Bonaparte
Mud Creek	Mud Creek	Lee	551	Fort Madison
Mud Creek	Mud Creek	Jasper	823	Baxter
Mud Creek	Mud Creek	Benton	856	Blairstown
Mud Creek	Mud Creek	Crawford	1066	Dunlap SW
Mud Creek	Mud Creek	Scott	630	Grand Mound
Mud Creek	Mud Creek	Polk	761	Pleasantville
Mud Creek	Mud Creek	Mills	994	Emerson
Mud Creek	Mud Creek	Henry	548	Lowell
Mud Creek	Mud Creek	Lyon	1263	Doon
Mud Creek	Mud Creek	Kossuth	1132	Bancroft
Mud Creek	Mud Creek	O'Brien	1329	Paullina
Mud Creek	Mud Creek	Woodbury	1145	Moville
Mud Creek	Mud Creek	Benton	791	Brandon
Mud Creek	Mud Creek	Marshall	932	Union
Mud Creek	Mud Creek	Marshall	902	Union
Mud Creek	Mud Creek	Black Hawk	804	La Porte City
Mud Creek	Mud Creek	Benton	764	Center Point NW
Muddy Creek	Muddy Creek	Plymouth	1158	Union Center SW
Muddy Creek	Muddy Creek	Johnson	653	Iowa City West
Mule Creek	Mule Creek	Mills	961	Tabor NE
Mullens Creek	Mullens Creek	Howard	1142	Cresco NE
Munns Creek	Munns Creek	Grundy	935	Lincoln
Murphy Branch	Murphy Branch	Dallas	843	Granger
Murray Creek	Murray Creek	Clay	1234	Sutherland East
Muscatine Slough	Muscatine Slough	Louisa	554	Toolesboro
Nagle Creek	Nagle Creek	Fayette	781	Volga
Nash Creek	Nash Creek	Buchanan	873	Quasqueton
Neele Branch	Neele Branch	Page	978	Hawleyville
Neeley Creek	Neeley Creek	Fremont	912	Sidney
Negro Creek	Negro Creek	Clinton	676	Delmar South
Nelson Creek	Nelson Creek	Linn	738	Center Point
Nelson Creek	Nelson Creek	O'Brien	1316	Paullina
Nelson Creek	Nelson Creek	Lyon	1211	Canton
New York Branch	New York Branch	Hamilton	1115	Buckeye West
Nicholson Creek	Nicholson Creek	Cedar	656	Cedar Bluff
Nickolson Creek	Nickolson Creek	Marshall	860	Le Grand
Ninemile Creek	Ninemile Creek	Adair	1148	Zion
Ninemile Creek	Ninemile Creek	Wayne	968	Humeston
Ninemile Creek	Ninemile Creek	Adair	1204	Fontanelle SW
No Business Creek	No Business Creek	Page	958	Clarinda South
Noah Creek	Noah Creek	Boone	873	Boone West
Norfolk Creek	Norfolk Creek	Allamakee	827	Rossville
North Avery Creek	North Avery Creek	Wapello	666	Chillicothe
North Bear Creek	North Bear Creek	Winneshiek	912	Dorchester
North Beaver Creek	North Beaver Creek	Butler	984	Aplington
North Branch Big Creek	North Branch Big Creek	Henry	673	New London
North Branch Elk River	North Branch Elk River	Clinton	669	Savanna
North Branch Lizard Creek	North Branch Lizard Creek	Pocahontas	1188	Gilmore City
North Branch North River	North Branch North River	Madison	853	Saint Charles NW
North Branch Old Mans Creek	North Branch Old Mans Creek	Johnson	673	Frytown
North Branch Turkey River	North Branch Turkey River	Howard	1171	Cresco SW
North Branch Volga River	North Branch Volga River	Fayette	1070	Maynard
North Branch West Nodaway River	North Branch West Nodaway River	Page	968	Clarinda South
North Canoe Creek	North Canoe Creek	Winneshiek	948	Burr Oak
North Cedar Creek	North Cedar Creek	Clayton	692	Clayton
North Chequest Creek	North Chequest Creek	Davis	715	Floris
North Coal Creek	North Coal Creek	Mahaska	686	Buxton
North Creek	North Creek	Appanoose	899	Mendota
North English River	North English River	Washington	692	Holbrook
North Fabius Creek	North Fabius Creek	Davis	794	West Grove
North Fork Catfish Creek	North Fork Catfish Creek	Dubuque	679	Dubuque South
North Fork Clanton Creek	North Fork Clanton Creek	Madison	942	East Peru
North Fork Floyd River	North Fork Floyd River	O'Brien	1460	Sanborn
North Fork Little Maquoketa River	North Fork Little Maquoketa River	Dubuque	627	Sherrill
North Fork Long Creek	North Fork Long Creek	Washington	656	Ainsworth
North Fork Maquoketa River	North Fork Maquoketa River	Jackson	643	Maquoketa
North Fork South Beaver Creek	North Fork South Beaver Creek	Grundy	971	Holland
North Fork Walnut Creek	North Fork Walnut Creek	Jones	787	Anamosa
North Fork Yellow River	North Fork Yellow River	Winneshiek	1007	Frankville
North Fox Creek	North Fox Creek	Davis	804	Paris
North Hoosier Creek	North Hoosier Creek	Clarke	978	Weldon
North Onion Creek	North Onion Creek	Boone	1004	Ames West
North Otter Creek	North Otter Creek	Clarke	932	Jamison
North Picayune Creek	North Picayune Creek	Harrison	1119	Dunlap SW
North Pigeon Creek	North Pigeon Creek	Pottawattamie	1010	Honey Creek
North Raccoon River	North Raccoon River	Dallas	850	Waukee
North River	North River	Polk	768	Rising Sun
North Skunk River	North Skunk River	Keokuk	630	Ollie
North Spring Branch	North Spring Branch	Jackson	745	Leisure Lake
North Timber Creek	North Timber Creek	Marshall	866	Gilman
North Turkey Creek	North Turkey Creek	Adair	1158	Rosserdale
North Walnut Creek	North Walnut Creek	Poweshiek	807	Belle Plaine SW
North Walnut Creek	North Walnut Creek	Jefferson	640	Salina
North Walnut Creek	North Walnut Creek	Polk	814	Des Moines SW
North Wildcat Creek	North Wildcat Creek	Marion	758	Knoxville NW
Norway Creek	Norway Creek	Monona	1086	Moorhead
Nugents Creek	Nugents Creek	Linn	886	Coggon
Nutting Creek	Nutting Creek	Fayette	850	Castalia
O'Connell Slough	O'Connell Slough	Des Moines	525	Burlington
Ocheyedan River	Ocheyedan River	Clay	1306	Spencer
Odebolt Creek	Odebolt Creek	Ida	1197	Ida Grove
Odell Branch	Odell Branch	Delaware	909	Greeley
Oil Spring Creek	Oil Spring Creek	Allamakee	617	Eastman
Old Channel Little Sioux River	Old Channel Little Sioux River	Woodbury	1079	Oto
Old Mans Creek	Old Mans Creek	Johnson	623	Hills
Old Womans Creek	Old Womans Creek	Johnson	659	Frytown
Olive Branch	Olive Branch	Mahaska	689	Rose Hill
Onion Creek	Onion Creek	Pottawattamie	1027	Underwood
Onion Creek	Onion Creek	Story	902	Ames West
Opossum Creek	Opossum Creek	Benton	797	Center Point SW
Orange City Slough	Orange City Slough	Sioux	1253	Maurice
Osterman Creek	Osterman Creek	Osceola	1476	Ocheyedan
Otter Creek	Otter Creek	Jackson	728	Zwingle
Otter Creek	Otter Creek	Winneshiek	1086	Cresco SE
Otter Creek	Otter Creek	Washington	617	Hills
Otter Creek	Otter Creek	Warren	781	Milo
Otter Creek	Otter Creek	Louisa	548	Mediapolis
Otter Creek	Otter Creek	Fayette	804	Gunder
Otter Creek	Otter Creek	Wright	1086	Renwick
Otter Creek	Otter Creek	Franklin	1014	Ackley NE
Otter Creek	Otter Creek	Buchanan	906	Independence
Otter Creek	Otter Creek	Hardin	955	New Providence
Otter Creek	Otter Creek	Linn	735	Shellsburg
Otter Creek	Otter Creek	Tama	774	Belle Plaine
Otter Creek	Otter Creek	Polk	889	Des Moines NE
Otter Slough	Otter Slough	Des Moines	525	Burlington
Outlet Creek	Outlet Creek	Buena Vista	1250	Newell West
Packard Creek	Packard Creek	Appanoose	823	Coatsville
Packinghouse Creek	Packinghouse Creek	Monroe	751	Avery
Paint Creek	Paint Creek	Winneshiek	702	Dorchester
Paint Creek	Paint Creek	Allamakee	614	Harpers Ferry
Painter Creek	Painter Creek	Lee	525	Nauvoo
Painter Creek	Painter Creek	Mahaska	702	Oskaloosa
Painter Creek	Painter Creek	Warren	853	Martensdale
Palestine Creek	Palestine Creek	Wapello	653	Chillicothe
Palmer Creek	Palmer Creek	Butler	938	Allison
Panther Creek	Panther Creek	Clayton	666	Littleport
Panther Creek	Panther Creek	Dallas	879	Adel
Papoose Creek	Papoose Creek	Warren	860	New Virginia
Paradise Creek	Paradise Creek	Crawford	1109	Dow City
Parmentar Creek	Parmentar Creek	Butler	978	Dumont North
Parnell Creek	Parnell Creek	Woodbury	1056	Smithland
Patterson Creek	Patterson Creek	Allamakee	725	Hanover
Paul Creek	Paul Creek	Louisa	584	Mediapolis
Peas Creek	Peas Creek	Boone	863	Madrid NW
Pechman Creek	Pechman Creek	Johnson	614	Hills
Peck Creek	Peck Creek	Clayton	623	Colesburg
Pee Dee Creek	Pee Dee Creek	Davis	732	Paris
Pee Dee Creek	Pee Dee Creek	Cedar	640	Rochester
Penitentiary Creek	Penitentiary Creek	Lee	518	Fort Madison
Penn Creek	Penn Creek	Delaware	899	Dyersville West
Pepper Creek	Pepper Creek	Davis	709	Paris
Perry Creek	Perry Creek	Woodbury	1099	Sioux City South
Perry Creek	Perry Creek	Cherokee	1152	Cherokee South
Peters Creek	Peters Creek	Floyd	978	Greene
Petersons Creek	Petersons Creek	Adams	1152	Grant
Pettitts Branch	Pettitts Branch	Cass	1201	Massena
Phelps Creek	Phelps Creek	Grundy	925	Parkersburg
Phillips Creek	Phillips Creek	Henry	659	Winfield North
Picayune Chute	Picayune Chute	Clayton	607	Cassville
Picayune Creek	Picayune Creek	Harrison	1043	Woodbine
Picayune Creek	Picayune Creek	Johnson	643	Hills
Pickerel Run	Pickerel Run	Clay	1306	Dickens
Pierson Creek	Pierson Creek	Woodbury	1106	Correctionville
Pig Creek	Pig Creek	Iowa	764	Williamsburg NW
Pigeon Creek	Pigeon Creek	Pottawattamie	971	Omaha North
Pigeon Creek	Pigeon Creek	Scott	561	Silvis
Pigeon Creek	Pigeon Creek	Appanoose	827	Moulton
Pigpen Slough	Pigpen Slough	Allamakee	623	De Soto
Pike Creek	Pike Creek	Muscatine	584	Columbus Junction
Pike Run	Pike Run	Winnebago	1214	Pilot Knob
Pike Run	Pike Run	Muscatine	600	Muscatine NW
Pilot Creek	Pilot Creek	Pocahontas	1122	Bradgate
Pine Creek	Pine Creek	Winneshiek	948	Bluffton
Pine Creek	Pine Creek	Jackson	692	Leisure Lake
Pine Creek	Pine Creek	Clayton	774	Volga
Pine Creek	Pine Creek	Clayton	745	Garber
Pine Creek	Pine Creek	Buchanan	873	Quasqueton
Pine Creek	Pine Creek	Tama	906	Garwin
Pine Creek	Pine Creek	Muscatine	548	Montpelier
Pioneer Creek	Pioneer Creek	Cedar	761	Stanwood
Pitcher Creek	Pitcher Creek	Cherokee	1306	Aurelia
Pitman Creek	Pitman Creek	Lee	545	West Point
Plague Mine Creek	Plague Mine Creek	Tama	774	Belle Plaine
Pleasant Creek	Pleasant Creek	Mahaska	725	Gibson
Pleasant Creek	Pleasant Creek	Jackson	587	Springbrook
Pleasant Run	Pleasant Run	Linn	696	Bertram
Pleasant Creek	Pleasant Creek	Audubon	1234	Exira East
Plessis Creek	Plessis Creek	O'Brien	1453	Plessis
Plug Run	Plug Run	Warren	787	Scotch Ridge
Plum Creek	Plum Creek	Dubuque	604	Cassville
Plum Creek	Plum Creek	Fayette	856	Wadena
Plum Creek	Plum Creek	Cedar	692	Oxford Junction
Plum Creek	Plum Creek	Kossuth	1214	Woden
Plum Creek	Plum Creek	Chickasaw	1102	New Hampton
Plum Creek	Plum Creek	Delaware	833	Hopkinton West
Plum Creek	Plum Creek	Fremont	928	McPaul
Plum Creek	Plum Creek	Ringgold	1093	Diagonal
Plunger Creek	Plunger Creek	Adair	1106	Stuart South
Plymouth Creek	Plymouth Creek	Plymouth	1178	Union Center NW
Polecat Creek	Polecat Creek	Boone	919	Boone West
Pony Creek	Pony Creek	Mills	951	Rock Bluff
Poor Farm Creek	Poor Farm Creek	Buena Vista	1276	Storm Lake NE
Porter Creek	Porter Creek	Crawford	1211	Boyer
Potato Creek	Potato Creek	Pottawattamie	1040	Underwood
Potatoe Creek	Potatoe Creek	Jasper	883	Alloway Creek
Potters Branch	Potters Branch	Van Buren	541	Bonaparte
Poyner Creek	Poyner Creek	Black Hawk	814	Gilbertville
Prairie Creek	Prairie Creek	Henry	558	Lowell
Prairie Creek	Prairie Creek	Johnson	600	Lone Tree
Prairie Creek	Prairie Creek	Jones	833	Scotch Grove
Prairie Creek	Prairie Creek	Calhoun	1096	Yetter
Prairie Creek	Prairie Creek	Webster	1129	Moorland
Prairie Creek	Prairie Creek	Linn	702	Cedar Rapids South
Prairie Creek	Prairie Creek	Jackson	640	Maquoketa
Prairie Creek	Prairie Creek	Jasper	774	Colfax
Prairie Creek	Prairie Creek	Marion	748	Knoxville NW
Prairie Creek	Prairie Creek	Humboldt	1099	Renwick
Prairie Creek	Prairie Creek	Calhoun	1184	Sac City East
Prairie Creek	Prairie Creek	Delaware	971	Masonville
Prairie Creek	Prairie Creek	Webster	935	Evanston
Prairie Creek	Prairie Creek	Hamilton	932	Stratford
Prairie Creek	Prairie Creek	Dubuque	837	Bernard
Prairie Creek	Prairie Creek	Benton	768	Vinton
Prairie Creek	Prairie Creek	Boone	951	Ames West
Pratt Creek	Pratt Creek	Benton	774	Vinton
Prescotts Creek	Prescotts Creek	Black Hawk	860	Hudson
Preston Creek	Preston Creek	Boone	860	Granger
Price Branch	Price Branch	Clayton	623	Colesburg
Price Creek	Price Creek	Marion	692	Harvey
Prices Creek	Prices Creek	Lee	518	Keokuk
Pumpkin Creek	Pumpkin Creek	Clinton	679	Maquoketa
Pumpkin Run	Pumpkin Run	Monona	1148	Mapleton
Purcell Creek	Purcell Creek	Kossuth	1106	Algona
Purgatory Creek	Purgatory Creek	Carroll	1047	Glidden
Quarter Section Run	Quarter Section Run	Bremer	879	Waverly
Quinn Creek	Quinn Creek	Fayette	876	Castalia
Rabbit Creek	Rabbit Creek	Clayton	778	Garber
Raccoon Creek	Raccoon Creek	Jackson	682	Baldwin
Raccoon River	Raccoon River	Polk	784	Des Moines SE
Ragtown Branch	Ragtown Branch	Lucas	925	Russell
Railroad Creek	Railroad Creek	Cherokee	1171	Cherokee South
Ralston Creek	Ralston Creek	Johnson	633	Iowa City West
Ramp Creek	Ramp Creek	Mills	988	Coburg
Ramsey Creek	Ramsey Creek	Washington	653	Kalona
Rapid Creek	Rapid Creek	Johnson	653	Iowa City West
Rapid Creek	Rapid Creek	Cerro Gordo	1043	Dougherty
Rat Creek	Rat Creek	Lyon	1371	George East
Rat Run	Rat Run	Clinton	718	Baldwin
Rathburn Creek	Rathburn Creek	Plymouth	1266	Kingsley NW
Raven Creek	Raven Creek	Tama	823	Montour
Reading Creek	Reading Creek	Greene	1086	Churdan
Reasnor Creek	Reasnor Creek	Jasper	758	Monroe
Red Keel Creek	Red Keel Creek	Lee	591	Fort Madison
Red Oak Creek	Red Oak Creek	Montgomery	1014	Red Oak North
Reeds Creek	Reeds Creek	Van Buren	545	Bonaparte
Reynolds Creek	Reynolds Creek	Woodbury	1119	Danbury
Rhine Creek	Rhine Creek	Johnson	715	Oxford
Richardson Branch	Richardson Branch	Boone	860	Luther
Richardson Creek	Richardson Creek	Harrison	1086	Woodbine
Richey Creek	Richey Creek	Johnson	594	Lone Tree
Richland Creek	Richland Creek	Tama	791	Chelsea
Richland Creek	Richland Creek	Washington	614	Richland
Rieger Creek	Rieger Creek	Delaware	925	Thorpe
Rio Grande Creek	Rio Grande Creek	Lyon	1348	George West
Roberts Creek	Roberts Creek	Clayton	696	Littleport
Rock Creek	Rock Creek	Van Buren	587	Mount Zion
Rock Creek	Rock Creek	Jefferson	623	Lockridge West
Rock Creek	Rock Creek	Clinton	574	Camanche
Rock Creek	Rock Creek	Monona	1138	Ute
Rock Creek	Rock Creek	Marshall	860	Le Grand
Rock Creek	Rock Creek	Plymouth	1086	Elk Point NE
Rock Creek	Rock Creek	Cerro Gordo	1037	Mason City SE
Rock Creek	Rock Creek	Clinton	659	Wheatland
Rock Creek	Rock Creek	Clinton	656	De Witt
Rock Creek	Rock Creek	Polk	801	Des Moines NW
Rock Creek	Rock Creek	Poweshiek	794	Victor
Rock Creek	Rock Creek	Keokuk	666	Sigourney
Rock Creek	Rock Creek	Keokuk	643	Ollie
Rock Creek	Rock Creek	Wapello	640	Ottumwa North
Rock Creek	Rock Creek	Jefferson	679	Libertyville
Rock Creek	Rock Creek	Cherokee	1145	Washta
Rock Creek	Rock Creek	Woodbury	1106	Correctionville
Rock Creek	Rock Creek	Mitchell	1027	Orchard
Rock Creek	Rock Creek	Tama	866	Traer
Rock Creek	Rock Creek	Benton	794	La Porte City
Rock Creek	Rock Creek	Jackson	610	Preston
Rock Creek	Rock Creek	Story	856	Maxwell
Rock Creek	Rock Creek	Jasper	820	Oakland Acres
Rock Creek	Rock Creek	Cedar	650	Rochester
Rock Falls Creek	Rock Falls Creek	Cerro Gordo	1089	Nora Springs
Rock River	Rock River	Sioux	1168	Hawarden North
Rock Run Creek	Rock Run Creek	Cedar	653	Rochester
Rocky Branch	Rocky Branch	Jefferson	597	Salina
Rocky Run	Rocky Run	Crawford	1197	Denison
Roetzel Creek	Roetzel Creek	O'Brien	1358	Sheldon SE
Rogers Creek	Rogers Creek	Winneshiek	1001	Fort Atkinson
Rogg Creek	Rogg Creek	Sioux	1240	Rock Valley
Rose Branch	Rose Branch	Taylor	1155	Guss
Rose Creek	Rose Creek	Montgomery	1086	Griswold NE
Routherford Branch	Routherford Branch	Delaware	1024	Thorpe
Royer Creek	Royer Creek	Dallas	860	Granger
Running Slough	Running Slough	Jackson	584	Blackhawk
Running Slough Drain	Running Slough Drain	Des Moines	518	Kingston
Rupple Creek	Rupple Creek	Story	869	Maxwell
Rush Chute	Rush Chute	Des Moines	525	Burlington
Rush Creek	Rush Creek	Monona	1188	Ute
Rush Lake Outlet	Rush Lake Outlet	Osceola	1457	Melvin
Rutt Branch	Rutt Branch	Adair	1175	Fontanelle SW
Ryan Creek	Ryan Creek	Jackson	633	Preston
Sabula Slough	Sabula Slough	Jackson	587	Savanna
Saint Joseph Creek	Saint Joseph Creek	Mahaska	673	Eddyville
Salt Creek	Salt Creek	Tama	761	Hartwick
Salt Creek	Salt Creek	Davis	607	Agency
Sand Creek	Sand Creek	Appanoose	863	Omaha
Sand Creek	Sand Creek	Wapello	640	Ottumwa North
Sand Creek	Sand Creek	Boone	876	Boone West
Sand Creek	Sand Creek	Clayton	787	Gunder
Sand Creek	Sand Creek	Buchanan	860	Troy Mills
Sand Creek	Sand Creek	Delaware	906	Manchester
Sand Creek	Sand Creek	Delaware	837	Hopkinton West
Sand Creek	Sand Creek	Decatur	955	Grand River
Sand Hagen Creek	Sand Hagen Creek	Delaware	968	Dundee
Sanders Creek	Sanders Creek	Johnson	659	Iowa City West
Sandy Branch	Sandy Branch	Appanoose	906	Plano
Sandy Creek	Sandy Creek	Fayette	863	Elgin
Sandy Creek	Sandy Creek	Wapello	712	Ottumwa South
Sandy Slough	Sandy Slough	Fremont	928	McPaul
Santiago Creek	Santiago Creek	Polk	801	Mitchellville
Saylings Creek	Saylings Creek	Adams	1168	Kent
Saylor Creek	Saylor Creek	Polk	794	Des Moines NW
Schaffer Creek	Schaffer Creek	Johnson	673	Amish
Schechtman Branch	Schechtman Branch	Delaware	860	Greeley
School Creek	School Creek	Emmet	1257	Estherville
School Creek	School Creek	Hardin	1017	Owasa
South Fork Maquoketa River	South Fork Maquoketa River	Buchanan	1001	Dundee
Baughmans Creek	Baughmans Creek	Cass	1079	Griswold
East Otter Creek	East Otter Creek	Crawford	1266	Kiron
Otter Creek	Otter Creek	Crawford	1168	Denison
North Fork Black Hawk Creek	North Fork Black Hawk Creek	Grundy	896	Zaneta
Schramling Creek	Schramling Creek	Clinton	600	Savanna
Schricker Slough	Schricker Slough	Clinton	574	Cordova
Schultz Creek	Schultz Creek	Floyd	965	Nashua
Second Creek	Second Creek	Boone	869	Boone West
Seely Creek	Seely Creek	Guthrie	1093	Guthrie Center West
Seights Creek	Seights Creek	Van Buren	614	Douds
Sevenmile Creek	Sevenmile Creek	Montgomery	1073	Morton Mills
Sevenmile Creek	Sevenmile Creek	Union	1010	Tingley NE
Severs Creek	Severs Creek	Jasper	774	Colfax
Sewer Creek	Sewer Creek	Clay	1352	Everly
Sewer Creek	Sewer Creek	Jasper	761	Monroe
Shanghai Creek	Shanghai Creek	Adams	1178	Prescott
Shawnee Creek	Shawnee Creek	Henry	597	Wayland
Sheldon Creek	Sheldon Creek	Franklin	1129	Popejoy
Shell Rock River	Shell Rock River	Black Hawk	869	Shell Rock
Short Creek	Short Creek	Warren	764	Hartford
Short Creek	Short Creek	Decatur	951	Van Wert
Short Creek	Short Creek	Louisa	574	Columbus Junction
Short Creek	Short Creek	Greene	1004	Jefferson West
Show Creek	Show Creek	Adams	1063	Carbon
Sibles Creek	Sibles Creek	Jones	738	Stanwood
Sifford Creek	Sifford Creek	Audubon	1194	Exira West
Silver Creek	Silver Creek	Scott	640	Davenport East
Silver Creek	Silver Creek	Clinton	581	Clinton NW
Silver Creek	Silver Creek	Jackson	666	Maquoketa
Silver Creek	Silver Creek	Delaware	902	Dyersville West
Silver Creek	Silver Creek	Linn	722	Cedar Rapids North
Silver Creek	Silver Creek	Clinton	614	De Witt
Silver Creek	Silver Creek	Mills	968	Tabor NE
Silver Creek	Silver Creek	Scott	574	Port Byron
Silver Creek	Silver Creek	Palo Alto	1201	Emmetsburg
Silver Creek	Silver Creek	Cherokee	1148	Cherokee South
Silver Creek	Silver Creek	Ida	1230	Ida Grove NW
Silver Creek	Silver Creek	Winneshiek	1027	Bluffton
Silver Creek	Silver Creek	Winneshiek	948	Bluffton
Silver Creek	Silver Creek	Allamakee	650	Waukon NW
Silver Creek	Silver Creek	Clayton	942	Saint Olaf
Silver Creek	Silver Creek	Buchanan	925	Coggon
Silver Creek	Silver Creek	Jones	807	Hopkinton East
Simmons Creek	Simmons Creek	Clinton	653	Preston
Simmons Creek	Simmons Creek	Linn	751	Springville
Simmons Creek	Simmons Creek	Monona	1102	Mapleton
Simpson Branch	Simpson Branch	Fremont	928	Sidney
Simpson Creek	Simpson Creek	Fayette	1037	Waucoma
Simpson Creek	Simpson Creek	Tama	853	Clutier
Sin Creek	Sin Creek	Adams	1056	Morton Mills
Sixmile Creek	Sixmile Creek	Harrison	1024	Woodbine
Skillet Creek	Skillet Creek	Webster	906	Stratford
Skinaway Creek	Skinaway Creek	Warren	856	Medora
Skinaway Creek	Skinaway Creek	Warren	804	Hartford
Skunk Creek	Skunk Creek	Fremont	965	McPaul
Skunk Creek	Skunk Creek	Monona	1165	Ute
Skunk River	Skunk River	Lee	522	Lomax
Skunk Slough	Skunk Slough	Des Moines	522	Lomax
Slater Creek	Slater Creek	Jasper	797	Sully
Slaughter Creek	Slaughter Creek	Van Buren	541	Bonaparte
Slocum Creek	Slocum Creek	Pottawattamie	1070	Oakland
Slough Creek	Slough Creek	Dallas	906	Perry
Slough Creek	Slough Creek	Mitchell	1056	Orchard
Smith Creek	Smith Creek	Jackson	584	Green Island
Smith Creek	Smith Creek	Keokuk	728	What Cheer
Smith Creek	Smith Creek	Buchanan	863	Walker
Smith Creek	Smith Creek	Washington	669	Wellman
Smith Creek	Smith Creek	Louisa	545	Oakville
Snag Creek	Snag Creek	Black Hawk	850	Cedar Falls
Snag Slough	Snag Slough	Jackson	587	Green Island
Snake Creek	Snake Creek	Page	1001	Coin
Snake Creek	Snake Creek	Greene	932	Dawson
Snipe Creek	Snipe Creek	Jasper	856	Baxter SE
Snort Creek	Snort Creek	Appanoose	853	Hiattsville
Sny Magill Creek	Sny Magill Creek	Clayton	617	Clayton
Snyder Branch	Snyder Branch	Appanoose	860	Hiattsville
Snyder Creek	Snyder Creek	Johnson	630	Hills
Snyder Creek	Snyder Creek	Mahaska	682	Rose Hill
Soap Creek	Soap Creek	Wapello	614	Eldon
Soap Creek	Soap Creek	Lee	502	Keokuk
Sodus Creek	Sodus Creek	Clinton	574	Cordova
Soldier Creek	Soldier Creek	Emmet	1266	Dolliver
Soldier Creek	Soldier Creek	Buena Vista	1250	Sioux Rapids
Soldier Creek	Soldier Creek	Webster	988	Fort Dodge North
Soldier River	Soldier River	Harrison	1007	Mondamin
Solferino Creek	Solferino Creek	Lee	518	Nauvoo
South Avery Creek	South Avery Creek	Wapello	646	Chillicothe
South Bear Creek	South Bear Creek	Winneshiek	860	Dorchester
South Beaver Creek	South Beaver Creek	Grundy	928	Parkersburg
South Beaver Creek	South Beaver Creek	Guthrie	1056	Menlo
South Branch Little Floyd River	South Branch Little Floyd River	O'Brien	1407	Sheldon
South Branch Lizard Creek	South Branch Lizard Creek	Webster	1004	Fort Dodge North
South Branch Salt Creek	South Branch Salt Creek	Tama	837	Clutier
South Branch Turkey River	South Branch Turkey River	Howard	1188	Cresco SW
South Branch West Nodaway River	South Branch West Nodaway River	Page	965	Clarinda South
South Cedar Creek	South Cedar Creek	Clayton	646	Colesburg
South Chequest Creek	South Chequest Creek	Davis	682	Selma
South Copper Creek	South Copper Creek	Jackson	643	Preston
South Creek	South Creek	Appanoose	902	Mendota
South English River	South English River	Washington	689	Holbrook
South Fork Catfish Creek	South Fork Catfish Creek	Dubuque	617	Dubuque South
South Fork Chariton River	South Fork Chariton River	Appanoose	906	Plano
South Fork Clanton Creek	South Fork Clanton Creek	Madison	938	East Peru
South Fork Iowa River	South Fork Iowa River	Hardin	922	Eldora
South Fork Long Creek	South Fork Long Creek	Washington	656	Ainsworth
South Fork Middle River	South Fork Middle River	Guthrie	1237	Casey
South Fork Walker Branch	South Fork Walker Branch	Wayne	922	Plano
South Fork Walnut Creek	South Fork Walnut Creek	Jones	787	Anamosa
South Hoosier Creek	South Hoosier Creek	Linn	725	Bertram
South Minerva Creek	South Minerva Creek	Marshall	948	State Center NW
South Onion Creek	South Onion Creek	Boone	1004	Ames West
South Otter Creek	South Otter Creek	Lucas	866	Medora
South Picayune Creek	South Picayune Creek	Harrison	1079	Dunlap SW
South Raccoon River	South Raccoon River	Dallas	850	Waukee
South River	South River	Polk	758	Pleasantville
South Silver Creek	South Silver Creek	Ida	1276	Ida Grove NW
South Skunk River	South Skunk River	Keokuk	630	Ollie
South Soap Creek	South Soap Creek	Davis	738	Paris
South Spring Branch	South Spring Branch	Jackson	741	Leisure Lake
South Squaw Creek	South Squaw Creek	Clarke	955	Osceola
South Timber Creek	South Timber Creek	Marshall	928	Gilman
South Walnut Creek	South Walnut Creek	Jefferson	640	Salina
South White Breast Creek	South White Breast Creek	Clarke	932	Le Roy
South Willow Creek	South Willow Creek	Monona	1165	Dunlap NW
Spearman Branch	Spearman Branch	Henry	597	Mount Pleasant
Spencer Creek	Spencer Creek	Scott	564	Silvis
Spring Branch	Spring Branch	Delaware	899	Manchester
Spring Branch	Spring Branch	Keokuk	755	Fremont
Spring Branch	Spring Branch	Jackson	751	Leisure Lake
Spring Branch	Spring Branch	Carroll	1168	Dedham
Spring Branch	Spring Branch	Fremont	922	Riverton
Spring Branch	Spring Branch	Chickasaw	1047	Frederika
Spring Creek	Spring Creek	Fremont	912	Riverton
Spring Creek	Spring Creek	Mahaska	692	University Park
Spring Creek	Spring Creek	Howard	1234	Clear Lake West
Spring Creek	Spring Creek	Benton	755	Center Point
Spring Creek	Spring Creek	Linn	679	Mount Vernon
Spring Creek	Spring Creek	Cass	1093	Lewis
Spring Creek	Spring Creek	Pottawattamie	1109	Carson NE
Spring Creek	Spring Creek	Wapello	735	Ottumwa North
Spring Creek	Spring Creek	Henry	663	Swedesburg
Spring Creek	Spring Creek	Des Moines	522	Lomax
Spring Creek	Spring Creek	Appanoose	814	Coatsville
Spring Creek	Spring Creek	Polk	764	Rising Sun
Spring Creek	Spring Creek	Clay	1332	Everly
Spring Creek	Spring Creek	Sioux	1220	Hawarden South
Spring Creek	Spring Creek	Cerro Gordo	1089	Mason City
Spring Creek	Spring Creek	Mitchell	1033	Orchard
Spring Creek	Spring Creek	Black Hawk	794	Brandon
Spring Creek	Spring Creek	Webster	1053	Moorland
Spring Creek	Spring Creek	Benton	794	Brandon
Spring Valley Creek	Spring Valley Creek	Mills	948	Tabor NE
Springs Branch Creek	Springs Branch Creek	Allamakee	646	Harpers Ferry
Spruce Creek	Spruce Creek	Jackson	594	Bellevue
Squaw Creek	Squaw Creek	Franklin	1014	Ackley NE
Squaw Creek	Squaw Creek	Story	879	Ames East
Squaw Creek	Squaw Creek	Linn	702	Bertram
Squaw Creek	Squaw Creek	Jasper	787	Mitchellville
Squaw Creek	Squaw Creek	Warren	817	Indianola
Squaw Creek	Squaw Creek	Ringgold	1076	Diagonal
Staff Creek	Staff Creek	Howard	1227	Lime Springs NW
Steady Run	Steady Run	Keokuk	666	Hedrick
Steel Creek	Steel Creek	Decatur	889	Lineville
Steeles Branch	Steeles Branch	Clayton	745	Garber
Steer Creek	Steer Creek	Harrison	1024	Missouri Valley NW
Stein Creek	Stein Creek	Tama	827	Elberon
Stewart Creek	Stewart Creek	Floyd	997	Charles City
Stoe Creek	Stoe Creek	Fayette	1004	Sumner
Stofferan Creek	Stofferan Creek	O'Brien	1358	Sheldon SE
Stony Creek	Stony Creek	Warren	814	Newbern
Stony Creek	Stony Creek	Clay	1332	Spencer
Stony Creek	Stony Creek	Poweshiek	814	Brooklyn
Barker Creek	Barker Creek	Lucas	830	Newbern
Storm Creek	Storm Creek	Carroll	1191	Carroll East
Stowe Creek	Stowe Creek	Monona	1053	Pisgah
Stratton Creek	Stratton Creek	Cherokee	1129	Washta
Stump Creek	Stump Creek	Van Buren	643	Selma
Sugar Creek	Sugar Creek	Wayne	955	Corydon NE
Sugar Creek	Sugar Creek	Keokuk	663	Hedrick
Sugar Creek	Sugar Creek	Marion	748	Pleasantville
Sugar Creek	Sugar Creek	Mitchell	1053	Osage
Sugar Creek	Sugar Creek	Dallas	827	Commerce
Sugar Creek	Sugar Creek	Tama	837	Garwin
Sugar Creek	Sugar Creek	Clinton	627	Preston
Sugar Creek	Sugar Creek	Poweshiek	781	Searsboro
Sugar Creek	Sugar Creek	Jasper	787	Mitchellville
Sugar Creek	Sugar Creek	Henry	591	Trenton
Sugar Creek	Sugar Creek	Wapello	650	Farson
Sugar Creek	Sugar Creek	Lee	492	Wayland
Sugar Creek	Sugar Creek	Lee	528	Nauvoo
Sullivan Slough	Sullivan Slough	Des Moines	522	Lomax
Summer Creek	Summer Creek	Van Buren	620	Lockridge West
Sunken Creek	Sunken Creek	Floyd	1024	Orchard
Suttle Creek	Suttle Creek	Allamakee	741	Waterville
Swan Lake Branch	Swan Lake Branch	Dallas	922	Perry
Sweeney Creek	Sweeney Creek	O'Brien	1398	Sheldon
Sweetland Creek	Sweetland Creek	Muscatine	548	Illinois City
Swisher Creek	Swisher Creek	Johnson	692	Swisher
Tama Mud Creek	Tama Mud Creek	Tama	804	Tama
Tank Pond Creek	Tank Pond Creek	Webster	1086	Paton
Tarecoat Creek	Tarecoat Creek	Jackson	702	Fulton
Teeple Creek	Teeple Creek	Allamakee	1007	Rossville
Ten Mile Creek	Ten Mile Creek	Winneshiek	909	Decorah
Tete des Morts Creek	Tete des Morts Creek	Dubuque	591	Galena
Teter Creek	Teter Creek	Marion	748	Otley
Third Creek	Third Creek	Boone	863	Boone West
Thompson Creek	Thompson Creek	Harrison	1086	Logan
Thompson Creek	Thompson Creek	Adams	1122	Bridgewater
Threemile Creek	Threemile Creek	Union	1047	Lorimor South
Threemile Creek	Threemile Creek	Cass	1115	Grant
Threemile Creek	Threemile Creek	Woodbury	1106	Correctionville
Thunder Creek	Thunder Creek	Mahaska	722	Peoria
Tibbetts Creek	Tibbetts Creek	Jones	781	Scotch Grove
Timber Creek	Timber Creek	Harrison	1001	Beebeetown
Timber Creek	Timber Creek	Marshall	856	Le Grand
Tipton Creek	Tipton Creek	Hardin	971	New Providence
Todd Branch	Todd Branch	Adams	1165	Kent
Todds Creek	Todds Creek	Delaware	909	Manchester
Tom Creek	Tom Creek	Lyon	1322	Rock Rapids
Tom Creek	Tom Creek	Madison	925	Earlham East
Town Branch	Town Branch	Van Buren	571	Keosauqua
Tracey Creek	Tracey Creek	Marion	787	Knoxville SW
Trinkle Creek	Trinkle Creek	Crawford	1197	Boyer
Troublesome Creek	Troublesome Creek	Keokuk	659	Sigourney
Troublesome Creek	Troublesome Creek	Keokuk	715	South English
Troublesome Creek	Troublesome Creek	Cass	1132	Atlantic
Trout Creek	Trout Creek	Winneshiek	873	Decorah
Trout Creek	Trout Creek	Winneshiek	837	Freeport
Trout River	Trout River	Winneshiek	778	Freeport
Trout Run	Trout Run	Allamakee	755	Church
Trout Run	Trout Run	Winneshiek	840	Decorah
Troy Creek	Troy Creek	Jefferson	643	Fairfield South
Tucker Creek	Tucker Creek	Crawford	1194	Boyer
Tug Fork Big Indian Creek	Tug Fork Big Indian Creek	Van Buren	636	Keosauqua
Tug Fork Big Indian Creek	Tug Fork Big Indian Creek	Van Buren	699	Cantril
Turkey Creek	Turkey Creek	Warren	860	Martensdale
Turkey Creek	Turkey Creek	Jasper	794	Baxter
Turkey Creek	Turkey Creek	Polk	925	Polk City
Turkey Creek	Turkey Creek	Boone	866	Madrid NW
Turkey Creek	Turkey Creek	Johnson	692	Iowa City West
Turkey Creek	Turkey Creek	Cass	1109	Lewis
Turkey Creek	Turkey Creek	Jefferson	584	Trenton
Turkey Creek	Turkey Creek	Ringgold	1099	Maloy
Turkey Creek	Turkey Creek	Wapello	617	Agency
Turkey Creek	Turkey Creek	Wayne	942	Woodland
Turkey Creek	Turkey Creek	Polk	761	Pleasantville
Turkey River	Turkey River	Clayton	607	Turkey River
Turkey Run	Turkey Run	Louisa	561	Wapello
Turkey Run	Turkey Run	Mahaska	712	Buxton
Turkey Run	Turkey Run	Decatur	915	Leon
Turner Creek	Turner Creek	Fayette	951	Saint Lucas
Turner Creek	Turner Creek	Jasper	804	Oakland Acres
Turtle Creek	Turtle Creek	Delaware	896	Manchester
Turtle Creek	Turtle Creek	Mitchell	1106	Saint Ansgar
Twelvemile Creek	Twelvemile Creek	Union	974	Tingley NE
Twelvemile Creek	Twelvemile Creek	Tama	863	Traer
Twomile Creek	Twomile Creek	Chickasaw	1056	Tripoli NW
Twomile Creek	Twomile Creek	Wapello	643	Ottumwa North
Tyler Lake Drain	Tyler Lake Drain	Des Moines	525	Keithsburg
Union Creek	Union Creek	Jackson	679	Maquoketa
Union Valley Creek	Union Valley Creek	Jasper	784	Prairie City
Upper Iowa River	Upper Iowa River	Allamakee	620	De Soto
Upper West Fork West Sabula Slough	Upper West Fork West Sabula Slough	Jackson	584	Savanna
Utica Creek	Utica Creek	Scott	676	Davenport East
Valley Branch	Valley Branch	Van Buren	650	Keosauqua
Van Zante Creek	Van Zante Creek	Marion	735	Killduff
Vesser Creek	Vesser Creek	Van Buren	604	Eldon
Village Creek	Village Creek	Wapello	620	Agency
Village Creek	Village Creek	Allamakee	623	Lansing
Virden Creek	Virden Creek	Black Hawk	843	Waterloo North
Volga River	Volga River	Clayton	646	Garber
Vore Creek	Vore Creek	Harrison	1106	Hard Scratch
Walker Branch	Walker Branch	Wayne	912	Plano
Wallingslock Creek	Wallingslock Creek	Marion	745	Pella
Walnut Creek	Walnut Creek	Scott	554	Davenport East
Walnut Creek	Walnut Creek	Washington	607	Wayland
Walnut Creek	Walnut Creek	Jefferson	591	Trenton
Walnut Creek	Walnut Creek	Ringgold	1027	Benton
Walnut Creek	Walnut Creek	Appanoose	853	Mystic
Walnut Creek	Walnut Creek	Marion	679	Leighton
Walnut Creek	Walnut Creek	Winneshiek	1132	Ridgeway
Walnut Creek	Walnut Creek	Crawford	1191	Denison
Walnut Creek	Walnut Creek	Story	856	Huxley
Walnut Creek	Walnut Creek	Jones	738	Morley
Walnut Creek	Walnut Creek	Polk	794	Des Moines SW
Walnut Creek	Walnut Creek	Poweshiek	764	Hartwick
Walnut Creek	Walnut Creek	Scott	643	Donahue
Walnut Creek	Walnut Creek	Marion	751	Knoxville NW
Walton Creek	Walton Creek	Linn	830	Central City
Wapsinonoc Creek	Wapsinonoc Creek	Muscatine	604	Nichols
Wapsipinicon River	Wapsipinicon River	Scott	574	Cordova
Warren Grove Creek	Warren Grove Creek	Jasper	758	Monroe
Waterloo Creek	Waterloo Creek	Allamakee	669	Dorchester
Waterman Creek	Waterman Creek	O'Brien	1211	Sutherland East
Watsons Creek	Watsons Creek	Howard	1194	Riceville
Waubonsie Creek	Waubonsie Creek	Fremont	945	Rock Bluff
Waugh Branch	Waugh Branch	Keokuk	682	Hedrick
Wayman Creek	Wayman Creek	Clayton	643	Garber
Weasel Creek	Weasel Creek	Benton	814	Blairstown
Weber Creek	Weber Creek	Woodbury	1093	Hornick
Weldon Creek	Weldon Creek	Decatur	1007	Garden Grove SW
Welsh Creek	Welsh Creek	Crawford	1093	Dunlap NE
Welshs Slough	Welshs Slough	Calhoun	1138	Farnhamville
West Basswood Creek	West Basswood Creek	Dubuque	604	Balltown
West Beaver Creek	West Beaver Creek	Greene	991	Grand Junction
West Branch Beaverdam Creek	West Branch Beaverdam Creek	Cerro Gordo	1070	Sheffield
West Branch Blue Creek	West Branch Blue Creek	Benton	804	Center Point
West Branch Buffalo Creek	West Branch Buffalo Creek	Buchanan	1033	Oelwein SE
West Branch Floyd River	West Branch Floyd River	Plymouth	1181	Union Center NW
West Branch Iowa River	West Branch Iowa River	Wright	1165	Belmond
West Branch Little Sioux River	West Branch Little Sioux River	Dickinson	1417	Lake Park
West Branch Mill Creek	West Branch Mill Creek	O'Brien	1401	Primghar
West Branch One Hundred and Two River	West Branch One Hundred and Two River	Taylor	1056	Ladoga
West Branch Panther Creek	West Branch Panther Creek	Dallas	942	Panther
West Branch Perry Creek	West Branch Perry Creek	Plymouth	1161	Sioux City North
West Branch Pine Creek	West Branch Pine Creek	Buchanan	997	Oelwein SE
West Branch Roberts Creek	West Branch Roberts Creek	Fayette	1056	Postville
West Branch South Cedar Creek	West Branch South Cedar Creek	Clayton	787	Garnavillo
West Branch Sugar Creek	West Branch Sugar Creek	Lee	571	Donnellson
West Branch Turkey River	West Branch Turkey River	Howard	1188	Cresco SW
West Branch Wapsinonoc Creek	West Branch Wapsinonoc Creek	Muscatine	640	West Liberty
West Buck Creek	West Buck Creek	Poweshiek	810	Searsboro
West Buttrick Creek	West Buttrick Creek	Greene	1007	Jefferson East
West Cedar Creek	West Cedar Creek	Calhoun	1115	Lohrville
West Fork Battle Creek	West Fork Battle Creek	Ida	1253	Holstein
West Fork Camp Creek	West Fork Camp Creek	Calhoun	1158	Yetter
West Fork Cedar River	West Fork Cedar River	Black Hawk	866	Cedar Falls
West Fork Crooked Creek	West Fork Crooked Creek	Washington	630	Crawfordsville
West Fork Little Sioux River	West Fork Little Sioux River	Monona	1047	Hornick
West Fork Little Sioux River	West Fork Little Sioux River	Dickinson	1388	Lake Park
West Fork Locust Creek	West Fork Locust Creek	Wayne	958	Saint John
West Fork Middle Nodaway River	West Fork Middle Nodaway River	Adair	1122	Bridgewater
West Fork West Nishnabotna River	West Fork West Nishnabotna River	Shelby	1181	Harlan
West Hoosier Creek	West Hoosier Creek	Johnson	692	Ely
West Indian Creek	West Indian Creek	Story	869	Maxwell
West Jackson Creek	West Jackson Creek	Wayne	971	Seymour West
West Long Creek	West Long Creek	Clarke	1053	Lorimor South
West Long Creek	West Long Creek	Clarke	1010	Hopeville
West Mud Creek	West Mud Creek	Woodbury	1158	Moville
West Nishnabotna River	West Nishnabotna River	Fremont	909	Riverton
West Nodaway River	West Nodaway River	Page	945	Clarinda South
West Otter Creek	West Otter Creek	Linn	764	Cedar Rapids North
West Otter Creek	West Otter Creek	Wright	1125	Kanawha SE
West Platte River	West Platte River	Adams	1178	Kent
West Rat Creek	West Rat Creek	Lyon	1391	George East
West Rock Creek	West Rock Creek	Cedar	784	Tipton West
West Walnut Creek	West Walnut Creek	Washington	633	Brighton
West Wolf Creek	West Wolf Creek	Union	1073	Lorimor South
Westfield Creek	Westfield Creek	Plymouth	1109	Akron
Whislers Branch	Whislers Branch	Cass	1142	Grant
Wexford Creek	Wexford Creek	Allamakee	620	Ferryville
Wharam Creek	Wharam Creek	Cerro Gordo	1093	Mason City
Wheeler Creek	Wheeler Creek	Crawford	1204	Boyer
Whiskey Creek	Whiskey Creek	Woodbury	1070	Hornick
Whiskey Creek	Whiskey Creek	Floyd	991	Rockford
Whiskey Creek	Whiskey Creek	O'Brien	1355	Paullina
Whiskey Creek	Whiskey Creek	O'Brien	1312	Paullina
Whiskey Run	Whiskey Run	Washington	623	Ainsworth
Whisky Creek	Whisky Creek	Plymouth	1240	Fielding
Whisky Run	Whisky Run	Louisa	535	Letts
White Ash Branch	White Ash Branch	Monroe	712	Avery
White Breast Creek	White Breast Creek	Marion	741	Otley
White Fox Creek	White Fox Creek	Hamilton	1017	Webster City
White Oak Creek	White Oak Creek	Van Buren	571	Bonaparte
White Oak Creek	White Oak Creek	Polk	958	Des Moines NE
White Oak Creek	White Oak Creek	Jones	781	Stanwood
Whitewater Creek	Whitewater Creek	Jones	771	Fillmore
Whitney Creek	Whitney Creek	Lyon	1368	George East
Wildcat Creek	Wildcat Creek	Marion	748	Knoxville NW
Wildcat Creek	Wildcat Creek	Marion	741	Otley
Wildcat Creek	Wildcat Creek	Benton	794	Center Point SW
Wildcat Creek	Wildcat Creek	Marion	840	Melcher-Dallas
Willey Branch	Willey Branch	Carroll	1165	Dedham
Williams Creek	Williams Creek	Cass	1112	Grant
Williams Creek	Williams Creek	Allamakee	807	Rossville
Williams Creek	Williams Creek	Washington	607	Wayland
Williams Creek	Williams Creek	Clinton	682	Goose Lake
Willow Brook	Willow Brook	Benton	764	Ladora
Willow Brook	Willow Brook	Clinton	574	Clinton NW
Willow Creek	Willow Creek	Adams	1178	Corning South
Willow Creek	Willow Creek	Monona	1109	Mapleton
Willow Creek	Willow Creek	Worth	1138	Fertile SE
Willow Creek	Willow Creek	Harrison	988	Missouri Valley
Willow Creek	Willow Creek	Crawford	1122	Dow City
Willow Creek	Willow Creek	Greene	1076	Bayard
Willow Creek	Willow Creek	Marshall	899	Rhodes
Willow Creek	Willow Creek	Crawford	1240	Defiance
Willow Creek	Willow Creek	Clinton	676	Goose Lake
Willow Creek	Willow Creek	Iowa	755	Middle Amana
Willow Creek	Willow Creek	Sioux	1325	Hospers
Willow Creek	Willow Creek	Plymouth	1194	Le Mars
Willow Creek	Willow Creek	O'Brien	1283	Paullina
Willow Creek	Willow Creek	Cherokee	1129	Washta
Willow Creek	Willow Creek	Mitchell	1099	Osage SW
Willow Creek	Willow Creek	Cerro Gordo	1070	Mason City
Willow Creek	Willow Creek	Grundy	902	Zaneta
Winans Creek	Winans Creek	Worth	1148	Fertile
Winn Branch	Winn Branch	Warren	801	Newbern
Winnebago River	Winnebago River	Floyd	981	Rockford
Wolf Branch	Wolf Branch	Appanoose	925	Mystic
Wolf Creek	Wolf Creek	Polk	850	Polk City
Wolf Creek	Wolf Creek	Clayton	696	Garber
Wolf Creek	Wolf Creek	Clayton	781	Volga
Wolf Creek	Wolf Creek	O'Brien	1371	Sheldon
Wolf Creek	Wolf Creek	Union	1070	Lorimor South
Wolf Creek	Wolf Creek	Jefferson	577	Lockridge East
Wolf Creek	Wolf Creek	Woodbury	1060	Hornick
Wolf Creek	Wolf Creek	Black Hawk	794	La Porte City
Wolf Creek	Wolf Creek	Tama	804	Elberon
Wolf Creek	Wolf Creek	Jasper	827	Mingo
Wolf Creek	Wolf Creek	Wapello	702	Farson
Wolf Creek	Wolf Creek	Ringgold	1060	Diagonal
Wolf Creek	Wolf Creek	Lucas	928	Corydon NE
Wolf Creek	Wolf Creek	Warren	837	Newbern
Wolf Run	Wolf Run	Page	1004	Clarinda North
Wonder Creek	Wonder Creek	Winneshiek	1047	Fort Atkinson
Worrell Creek	Worrell Creek	Story	879	Ames East
Wyoming Slough	Wyoming Slough	Muscatine	545	Illinois City
Yeader Creek	Yeader Creek	Polk	774	Des Moines SE
Yeager Creek	Yeager Creek	Jackson	591	Bellevue
Yellow River	Yellow River	Allamakee	614	Prairie du Chien
Yellow Spring Creek	Yellow Spring Creek	Des Moines	525	Kingston
Ziegler Slough	Ziegler Slough	Louisa	528	Keithsburg
Zoar Creek	Zoar Creek	Lyon	1371	George East
Crawford Creek	Crawford Creek	Ida	1175	Battle Creek
Dickson Branch	Dickson Branch	Carroll	1056	Glidden
Little Maple River	Little Maple River	Cherokee	1280	Galva
Wolf Creek	Wolf Creek	Shelby	1217	Elk Horn
Kuder Creek	Kuder Creek	Ringgold	1037	Kellerton
West Burr Oak Creek	West Burr Oak Creek	Jasper	863	Alloway Creek
Spring Creek	Spring Creek	Harrison	1142	Persia
Brockamp Creek	Brockamp Creek	Winneshiek	961	Saint Lucas
North Elm Creek	North Elm Creek	Madison	856	Saint Charles NW
Orman Creek	Orman Creek	Madison	938	Earlham East
Wildcat Creek	Wildcat Creek	Wayne	948	Corydon
Mason Creek	Mason Creek	Cedar	689	Cedar Bluff
Bluebird Creek	Bluebird Creek	Buena Vista	1243	Sioux Rapids
West Little River	West Little River	Decatur	984	Davis City
Lime Creek	Lime Creek	Winnebago	1220	Pilot Knob
Milford Creek	Milford Creek	Dickinson	1362	Milford
Loon Creek	Loon Creek	Dickinson	1401	Lakefield SE
Lateral Ditch Number Eight	Lateral Ditch Number Eight	Fremont	915	Sidney
Little Rock River	Little Rock River	Lyon	1250	Doon
Bente Branch	Bente Branch	Clayton	679	Littleport
Spring Branch	Spring Branch	Clayton	679	Littleport
Coolegar Slough	Coolegar Slough	Louisa	535	Blanchard Island
Cedar River	Cedar River	Louisa	574	Columbus Junction
Little Mosquito Creek	Little Mosquito Creek	Muscatine	620	Atalissa
Mosquito Creek	Mosquito Creek	Muscatine	620	Atalissa
Mud Creek	Mud Creek	Muscatine	643	Wilton
Otter Creek	Otter Creek	Muscatine	636	Wilton
Sugar Creek	Sugar Creek	Muscatine	623	Wilton
Wagner	Wagner	Clayton	1066	Saint Olaf
Bass Creek	Bass Creek	Fayette	948	Saint Lucas
South Wonder Creek	South Wonder Creek	Winneshiek	1066	Fort Atkinson
Upper Branch Yellow Creek	Upper Branch Yellow Creek	Winneshiek	919	Postville NW
Penny Springs	Penny Springs	Allamakee	797	Rossville
South Fox Creek	South Fox Creek	Appanoose	840	Moulton
Spring Creek	Spring Creek	Audubon	758	Lime City
Bull Run	Bull Run	Audubon	1253	Kimballton
Sink Creek	Sink Creek	Black Hawk	817	Waterloo South
Shady Branch	Shady Branch	Boone	951	Madrid NW
Prairie Creek	Prairie Creek	Polk	951	Granger
Klock Creek	Klock Creek	Bremer	889	Shell Rock
Schuyler Creek	Schuyler Creek	Butler	948	Clarksville
Curry Creek	Curry Creek	Butler	899	Shell Rock
Freddeke Creek	Freddeke Creek	Butler	919	Coster
Landphere Creek	Landphere Creek	Butler	902	Coster
Moulfon Creek	Moulfon Creek	Butler	935	Coster
Kilsons Branch	Kilsons Branch	Butler	938	Parkersburg
Max Creek	Max Creek	Butler	915	Stout
Halburn Creek	Halburn Creek	Carroll	1312	Carroll West
Flay Creek	Flay Creek	Cerro Gordo	1181	Thornton
Marsh Creek	Marsh Creek	Chickasaw	1060	Fredericksburg
Williams Creek	Williams Creek	Clinton	728	Goose Lake
Garretts Branch	Garretts Branch	Delaware	951	Greeley
Perkins Creek	Perkins Creek	Fremont	1017	Tabor SW
Thomas Ditch	Thomas Ditch	Fremont	978	Clarinda South
Otter Creek	Otter Creek	Greene	1033	Scranton
Fox Creek	Fox Creek	Guthrie	1293	Casey
Cass Creek	Cass Creek	Dallas	974	Panora
South Fork Blackhawk Creek	South Fork Blackhawk Creek	Grundy	935	Holland
East Branch Keg Creek	East Branch Keg Creek	Harrison	1204	Persia
Teener Creek	Teener Creek	Washington	689	Holbrook
Hurstville Branch	Hurstville Branch	Jackson	659	Maquoketa
West Kitty Creek	West Kitty Creek	Jones	807	Monticello
Tibetts Creek	Tibetts Creek	Jones	778	Scotch Grove
Twin Grove Creek	Twin Grove Creek	Keokuk	679	Pekin
Grape Creek	Grape Creek	Lee	564	Keokuk
Klondike Creek	Klondike Creek	Lyon	1247	Klondike
Dry Run Creek	Dry Run Creek	Sioux	1214	Rock Valley
Lighting Creek	Lighting Creek	Marion	758	Pella
Crooked Creek	Crooked Creek	Marion	732	Harvey
Wolf Run	Wolf Run	Marion	761	Knoxville
Snake Creek	Snake Creek	Mills	1001	Mineola
Osborne Creek	Osborne Creek	Mills	1010	Malvern
Douglas Creek	Douglas Creek	Mills	1030	Emerson
Wagner Creek	Wagner Creek	Osceola	1457	Ashton
Kappes Creek	Kappes Creek	Osceola	1493	Ashton
Eightmile Branch	Eightmile Branch	Page	988	Shenandoah East
Rocky Branch	Rocky Branch	Page	961	Shenandoah East
Alleman Creek	Alleman Creek	Polk	971	Polk City
Neola Creek	Neola Creek	Pottawattamie	1066	Neola
South Fork Lost Creek	South Fork Lost Creek	Scott	666	McCausland
Dutch Branch	Dutch Branch	Shelby	1155	Corley
Jordan Creek	Jordan Creek	Jefferson	692	Abingdon
Bear Creek	Bear Creek	Crawford	1358	Denison SW
Newcom Creek	Newcom Creek	Crawford	1348	Kiron
Goose Creek	Goose Creek	Cedar	997	Laurel
Long Branch	Long Branch	Appanoose	820	Coatsville
Parrish Branch	Parrish Branch	Union	1043	Rippey
Mamie Creek	Mamie Creek	Pottawattamie	1253	McClelland
Prosser Creek	Prosser Creek	Adams	1283	Grant
Steels Branch	Steels Branch	Warren	971	Patterson
Limestone Creek	Limestone Creek	Warren	1007	Truro
Sants Branch	Sants Branch	Warren	843	Martensdale
Old Channel Lost Creek (historical)	Old Channel Lost Creek (historical)	Scott	594	Malone
Old Channel Lost Creek	Old Channel Lost Creek	Scott	591	McCausland
Prairie Creek	Prairie Creek	Tama	1030	Garwin
Skinners Creek	Skinners Creek	Monona	1263	Dunlap NW
South Rock Creek	South Rock Creek	Tama	896	Le Grand
Lytles Creek	Lytles Creek	Harrison	1119	Persia
Bass Creek	Bass Creek	Webster	1017	Fort Dodge North
Crabapple Creek	Crabapple Creek	Mills	1043	Coburg
Deer Creek	Deer Creek	Webster	1020	Fort Dodge North
Des Moines River	Des Moines River	Lee	597	Keokuk
Whippoorwill Creek	Whippoorwill Creek	Monroe	761	Hiteman
Indian Creek	Indian Creek	Mills	994	Malvern
Indian Creek	Indian Creek	Humboldt	1056	Humboldt
Little Indian Creek	Little Indian Creek	Montgomery	1089	Wales
Lotts Creek	Lotts Creek	Humboldt	1079	Saint Joseph
North Cedar Creek	North Cedar Creek	Marion	705	Lovilia
Prairie Creek	Prairie Creek	Clay	1296	Gillett Grove
Trulner Creek	Trulner Creek	Humboldt	1093	Livermore
Walnut Creek	Walnut Creek	Fremont	932	Randolph
Whippoorwill Branch	Whippoorwill Branch	Monroe	735	Lovilia
Whites Creek	Whites Creek	Monroe	745	Hiteman
Willow Creek	Willow Creek	Clay	1266	Webb
Cold Stream	Cold Stream	Linn	722	Cedar Rapids South
Devils Creek	Devils Creek	Lee	518	Nauvoo
Squaw Creek	Squaw Creek	Shelby	1175	Prairie Rose Lake
Plum Creek	Plum Creek	Johnson	699	Swisher
Otter Creek	Otter Creek	Lyon	1322	George West
Sixmile Creek	Sixmile Creek	Sioux	1152	Chatsworth
Kanaranzi Creek	Kanaranzi Creek	Lyon	1335	Rock Rapids
Little Rock River	Little Rock River	Lyon	1253	Doon
Otter Creek	Otter Creek	Mitchell	1125	Saint Ansgar
Little Sioux River	Little Sioux River	Dickinson	1010	Little Sioux
Hine Creek	Hine Creek	Kossuth	1112	West Bend NE
Crooked Creek	Crooked Creek	Pocahontas	1152	Rolfe
Dickersons Branch	Dickersons Branch	Decatur	863	Akron
Britton Branch	Britton Branch	Decatur	961	Davis City
Sevenmile Creek	Sevenmile Creek	Decatur	1043	Lamoni South
Potteroff Creek	Potteroff Creek	Decatur	889	Davis City
Pot Hole Creek	Pot Hole Creek	Decatur	915	Lamoni North
South Elk Creek	South Elk Creek	Decatur	948	Lamoni North
South Creek	South Creek	Ringgold	1056	Mount Ayr
Bealls Creek	Bealls Creek	Ringgold	1020	Mount Ayr
Tuckers Creek	Tuckers Creek	Ringgold	1033	Hatfield
Mitchells Run	Mitchells Run	Ringgold	1004	Blockton SE
Fiddlers Creek	Fiddlers Creek	Ringgold	1014	Blockton SE
Redmans Branch	Redmans Branch	Decatur	965	Van Wert
Brush Creek	Brush Creek	Ringgold	1043	Benton
Wolf Creek	Wolf Creek	Decatur	984	Van Wert
Hackberry Creek	Hackberry Creek	Ringgold	1122	Tingley
Indian Creek	Indian Creek	Union	1079	Arispe
Indian Creek	Indian Creek	Ringgold	1093	Diagonal
West Plum Creek	West Plum Creek	Ringgold	1115	Diagonal
Bird Creek	Bird Creek	Madison	951	East Peru
West Elk Creek	West Elk Creek	Decatur	945	Lamoni North
Twomile Creek	Twomile Creek	Union	1053	Lorimor South
Star Branch	Star Branch	Union	1037	Lorimor South
Twomile Creek	Twomile Creek	Union	1070	Afton
Loefler Creek	Loefler Creek	Union	1079	Afton
East Branch Middle Platte River	East Branch Middle Platte River	Union	1175	Kent
West Branch Creek	West Branch Creek	Madison	1086	Macksburg
Walnut Creek	Walnut Creek	Clarke	925	New Virginia
Box Elder Creek	Box Elder Creek	Warren	869	New Virginia
Turkery Creek	Turkery Creek	Warren	814	Indianola
Felters Branch	Felters Branch	Warren	794	Norwalk
Crooked Run	Crooked Run	Kossuth	1175	Seneca
Welty Creek	Welty Creek	Madison	1040	Pitzer
Fletcher Branch	Fletcher Branch	Madison	971	Winterset
Rocky Branch	Rocky Branch	Madison	1050	Pitzer
Baugh Branch	Baugh Branch	Madison	1004	Pitzer
Prairie Creek	Prairie Creek	Kossuth	1155	Armstrong SE
South Creek	South Creek	Kossuth	1158	Armstrong
Spring Branch	Spring Branch	Guthrie	1027	Menlo
Gard Branch	Gard Branch	Ringgold	1135	Clearfield
Fannys Branch	Fannys Branch	Dallas	938	Dawson
Springbrook Creek	Springbrook Creek	Guthrie	1047	Bagley
South Turkey Creek	South Turkey Creek	Adair	1161	Rosserdale
Powell Creek	Powell Creek	Buena Vista	1401	Storm Lake
Little Elkhorn Creek	Little Elkhorn Creek	Audubon	1280	Exira West
Victory Creek	Victory Creek	Clarke	906	Woodburn
Bleubaugh Creek	Bleubaugh Creek	Monroe	866	Melrose
Moffatt Branch	Moffatt Branch	Monroe	846	Iconium
Sage Creek	Sage Creek	Monroe	781	Attica
Columbia Creek	Columbia Creek	Lucas	774	Attica
Willow Creek	Willow Creek	Marion	735	Harvey
Black Oak Creek	Black Oak Creek	Mahaska	712	Peoria
Bear Creek	Bear Creek	Hardin	925	Eldora
Pine Creek	Pine Creek	Hardin	945	Eldora
Spring Creek	Spring Creek	Franklin	1020	Ackley NE
Deeds Creek	Deeds Creek	Lee	531	Danville
Hell Hollow	Hell Hollow	Lee	535	Lowell
Mud Creek	Mud Creek	Lee	646	Hillsboro
Rock Creek	Rock Creek	Henry	591	Hillsboro
Big Hollow Creek	Big Hollow Creek	Des Moines	614	Pleasant Grove
Saunders Branch	Saunders Branch	Henry	600	Mount Pleasant
Heather Branch	Heather Branch	Henry	597	Mount Pleasant
Yankee Run	Yankee Run	Clinton	659	Wheatland
Elk River	Elk River	Clinton	581	Clinton NW
Jack Creek	Jack Creek	Palo Alto	1207	Graettinger East
Lynn Creek	Lynn Creek	Henry	640	Swedesburg
Roff Creek	Roff Creek	Louisa	594	Cairo
Spring Run Creek	Spring Run Creek	Louisa	623	Winfield North
Johnny Creek	Johnny Creek	Louisa	610	Winfield North
Cedar Fork Creek	Cedar Fork Creek	Louisa	620	Pleasant Grove
Goddard Creek	Goddard Creek	Winneshiek	1027	Fort Atkinson
Spring Branch Creek	Spring Branch Creek	Allamakee	630	Harpers Ferry
Clear Creek	Clear Creek	Allamakee	633	Lansing
Simon Run	Simon Run	Pottawattamie	994	Honey Creek
Huron Chute	Huron Chute	Des Moines	528	Keithsburg
Buffalo Slough	Buffalo Slough	Des Moines	531	Keithsburg
Gun Chute	Gun Chute	Des Moines	528	Keithsburg
Cody Chute	Cody Chute	Des Moines	528	Keithsburg
Hecker Creek	Hecker Creek	Allamakee	951	Frankville
Willow Creek	Willow Creek	Linn	712	Cedar Rapids South
Sycamore Creek	Sycamore Creek	Scott	571	Port Byron
Whiskey Run Creek	Whiskey Run Creek	Scott	577	Cordova
Lund Creek	Lund Creek	Scott	574	Cordova
Bena Brook	Bena Brook	Linn	712	Bertram
Candlelight Creek	Candlelight Creek	Scott	663	Davenport East
Robin Creek	Robin Creek	Scott	636	Davenport East
Pheasant Creek	Pheasant Creek	Scott	614	Davenport East
West Pheasant Creek	West Pheasant Creek	Scott	640	Davenport East
Cardinal Creek	Cardinal Creek	Scott	650	Davenport West
Field Sike Creek	Field Sike Creek	Scott	650	Silvis
Stafford Creek	Stafford Creek	Scott	584	Silvis
Crystal Creek	Crystal Creek	Scott	643	Davenport West
Ludlow Creek	Ludlow Creek	Allamakee	886	Frankville
Hopewell Creek	Hopewell Creek	Scott	636	Silvis
Theisen Creek	Theisen Creek	Dubuque	866	Bernard
Indian Creek	Indian Creek	Jasper	778	Colfax
Liberty Creek	Liberty Creek	Johnson	620	Hills
North Fork Liberty Creek	North Fork Liberty Creek	Johnson	643	Hills
South Fork Liberty Creek	South Fork Liberty Creek	Johnson	643	Hills
Hoover Creek	Hoover Creek	Cedar	709	West Branch
Bryan Creek	Bryan Creek	Jones	712	Oxford Junction
Cardinal Creek	Cardinal Creek	Johnson	643	Iowa City West
Cardinal Creek South Branch	Cardinal Creek South Branch	Johnson	659	Iowa City West
Hahn Creek	Hahn Creek	Linn	715	Mount Vernon
Sweet Water Creek	Sweet Water Creek	Bremer	988	Sumner SW