1850 Counties of  Iowa

County Description Area in sq miles Courts held at Pop in 1850
Allomakee northeast corner, crossed by Iowa river blank Lansing 777
Appanoose on south side blank Centreville 3,131
Benton on eastern side, crossed by Cedar river 660 Vinton 672
Black Hawk NE part, crossed by Cedar & Black Hawk rivers 625 main town Cedar Falls 135
Boone central part, crossed by Des Moines river 600 Booneville 735
Buchanan eastern part, blank Independence 517
Cedar eastern part, crossed by Cedar river blank Tipton 3,941
Clarke southwest part blank blank 79
Clayton northeast boundary, west side of Mississippi river 720 Gottenburgh 4,053
Clinton eastern boundary, west side of Mississippi river, Wabesipinnica river on the south 1012 Camanche 2,922
Dallas western part blank Adell 854
Davis southern boundary, intersected by Des Moines river at northeast corner blank Bloomfield 7,264
Decatur southern boundary blank blank 965
Delaware eastern part 576 Delhi 1,759
Des Moines southeast part, Mississippi river on east & Chickahoma river on southwest 410 Burlington 12,987
Du Buque northeastern part, Mississippi river on northeast blank Du Buque 10,841
Fayette north eastern part blank West Union 825
Fremont southwest corner, Missouri river on west blank Dawsonburgh 1,244
Henry south eastern part, crossed by Chicagua river 432 Mount Pleasant 8,707
Iowa no description blank blank 822
Jackson north eastern boundary on Mississippi river 628 Bellevue 7,210
Jasper central part blank Newton 1,280
Jefferson southeast part 380 Fairfield 8,890
Johnson eastern part, crossed by Iowa river 610 Iowa City (Capital) 4,472
Jones eastern part, crossed by Wapsipinecon river 576 Anamosa 3,007
Keokuk southeast part blank Lancaster 4,822
Lee southeast corner, Des Moines river on southwest, Mississippi river on southeast 600 Fort Madison 18,860
Linn toward east part 720 Marion 5,444
Louisa eastern boundary, crossed by Iowa river, with Mississippi river on east 442 Wapello 4,939
Lucas southern part blank Chariton 471
Madison southwest part blank blank 1,179
Mahaska toward south part, crossed by Des Moines river blank Oskaloosa 5,989
Marion central part, crossed by Des Moines river blank Knoxville 5,482
Marshall central part, crossed by Iowa river blank blank 338
Monroe southern part blank Albia 2,884
Muscatine eastern boundary, Mississippi river on east 440 Muscatine 5,731
Page south boundary blank Nodaway 551
Polk central part, crossed by Des Moines river blank Des Moines 4,515
Pottawatamie west boundary, Missouri river on west blank blank 7,828
Poweshiek central part blank Montezuma 615
Scott south eastern boundary, Mississippi river on southeast 540 Davenport 5,986
Van Buren on south boundary, crossed by Des Moines river 504 Keosauque 12,270
Wapello in southeastern part, crossed by Des Moines river blank Ottumwa 8,471
Warren toward southern part blank Indianola 961
Washington in southeastern part, Iowa river on northeast 648 Washington 4,957
Wayne on south boundary 375 blank 340
Winneshiek north boundary, crossed by Upper Iowa river blank Fort Atkinson 546

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