Iowa Counties

County Name	Population
Adair County	7,059
Adams County	3,588
Allamakee County	13,642
Appanoose County	12,430
Audubon County	5,481
Benton County	25,414
Black Hawk County	130,786
Boone County	26,277
Bremer County	25,311
Buchanan County	21,287
Buena Vista County	19,772
Butler County	14,333
Calhoun County	9,473
Carroll County	19,914
Cass County	12,817
Cedar County	18,485
Cerro Gordo County	42,103
Cherokee County	11,190
Chickasaw County	11,834
Clarke County	9,353
Clay County	15,976
Clayton County	17,321
Clinton County	46,392
Crawford County	16,834
Dallas County	96,963
Davis County	9,051
Decatur County	7,769
Delaware County	16,937
Des Moines County	38,708
Dickinson County	17,549
Dubuque County	97,590
Emmet County	9,095
Fayette County	19,258
Floyd County	15,480
Franklin County	9,971
Fremont County	6,729
Greene County	8,795
Grundy County	12,217
Guthrie County	10,737
Hamilton County	14,716
Hancock County	10,507
Hardin County	16,575
Harrison County	13,928
Henry County	19,697
Howard County	9,176
Humboldt County	9,473
Ida County	6,833
Iowa County	16,138
Jackson County	19,205
Jasper County	37,148
Jefferson County	18,347
Johnson County	153,740
Jones County	20,617
Keokuk County	10,085
Kossuth County	14,680
Lee County	33,480
Linn County	227,854
Louisa County	11,011
Lucas County	8,518
Lyon County	11,756
Madison County	16,521
Mahaska County	22,370
Marion County	33,168
Marshall County	39,495
Mills County	14,766
Mitchell County	10,647
Monona County	8,598
Monroe County	7,770
Montgomery County	9,935
Muscatine County	42,394
O'Brien County	13,679
Osceola County	5,987
Page County	15,073
Palo Alto County	8,845
Plymouth County	25,219
Pocahontas County	6,607
Polk County	494,281
Pottawattamie County	93,328
Poweshiek County	18,381
Ringgold County	4,801
Sac County	9,603
Scott County	173,216
Shelby County	11,430
Sioux County	35,043
Story County	98,237
Tama County	16,801
Taylor County	6,092
Union County	12,157
Van Buren County	7,069
Wapello County	34,985
Warren County	52,265
Washington County	21,992
Wayne County	6,415
Webster County	35,934
Winnebago County	10,277
Winneshiek County	19,862
Woodbury County	103,138
Worth County	7,359
Wright County	12,416