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Home >> Iowa >> Counties

Iowa County List

County State Population
Polk County, Iowa Iowa 497,441
Linn County, Iowa Iowa 229,463
Scott County, Iowa Iowa 174,302
Johnson County, Iowa Iowa 154,881
Black Hawk County, Iowa Iowa 130,693
Woodbury County, Iowa Iowa 105,760
Dallas County, Iowa Iowa 104,136
Dubuque County, Iowa Iowa 98,948
Story County, Iowa Iowa 98,592
Pottawattamie County, Iowa Iowa 93,407
Warren County, Iowa Iowa 53,484
Clinton County, Iowa Iowa 46,383
Cerro Gordo County, Iowa Iowa 42,785
Muscatine County, Iowa Iowa 42,735
Marshall County, Iowa Iowa 39,971
Des Moines County, Iowa Iowa 38,597
Jasper County, Iowa Iowa 37,864
Webster County, Iowa Iowa 36,848
Sioux County, Iowa Iowa 35,984
Wapello County, Iowa Iowa 35,265
Marion County, Iowa Iowa 33,551
Lee County, Iowa Iowa 33,175
Boone County, Iowa Iowa 26,669
Plymouth County, Iowa Iowa 25,699
Benton County, Iowa Iowa 25,698
Bremer County, Iowa Iowa 25,118
Washington County, Iowa Iowa 22,539
Mahaska County, Iowa Iowa 22,045
Jones County, Iowa Iowa 20,799
Buena Vista County, Iowa Iowa 20,684
Carroll County, Iowa Iowa 20,677
Buchanan County, Iowa Iowa 20,645
Henry County, Iowa Iowa 20,228
Winneshiek County, Iowa Iowa 19,972
Jackson County, Iowa Iowa 19,429
Fayette County, Iowa Iowa 19,393
Poweshiek County, Iowa Iowa 18,582
Cedar County, Iowa Iowa 18,427
Dickinson County, Iowa Iowa 17,844
Delaware County, Iowa Iowa 17,549
Clayton County, Iowa Iowa 17,069
Tama County, Iowa Iowa 16,982
Madison County, Iowa Iowa 16,760
Hardin County, Iowa Iowa 16,729
Iowa County, Iowa Iowa 16,547
Clay County, Iowa Iowa 16,446
Crawford County, Iowa Iowa 16,289
Jefferson County, Iowa Iowa 15,676
Floyd County, Iowa Iowa 15,502
Page County, Iowa Iowa 15,168
Hamilton County, Iowa Iowa 14,893
Harrison County, Iowa Iowa 14,645
Kossuth County, Iowa Iowa 14,610
Mills County, Iowa Iowa 14,563
Butler County, Iowa Iowa 14,301
O’Brien County, Iowa Iowa 14,103
Allamakee County, Iowa Iowa 14,038
Cass County, Iowa Iowa 13,115
Wright County, Iowa Iowa 12,817
Grundy County, Iowa Iowa 12,352
Appanoose County, Iowa Iowa 12,242
Lyon County, Iowa Iowa 12,087
Union County, Iowa Iowa 12,038
Chickasaw County, Iowa Iowa 11,868
Shelby County, Iowa Iowa 11,757
Cherokee County, Iowa Iowa 11,587
Hancock County, Iowa Iowa 10,718
Louisa County, Iowa Iowa 10,710
Winnebago County, Iowa Iowa 10,648
Guthrie County, Iowa Iowa 10,646
Mitchell County, Iowa Iowa 10,548
Montgomery County, Iowa Iowa 10,254
Franklin County, Iowa Iowa 9,977
Keokuk County, Iowa Iowa 9,964
Calhoun County, Iowa Iowa 9,858
Sac County, Iowa Iowa 9,759
Clarke County, Iowa Iowa 9,690
Humboldt County, Iowa Iowa 9,573
Howard County, Iowa Iowa 9,459
Emmet County, Iowa Iowa 9,316
Davis County, Iowa Iowa 9,127
Palo Alto County, Iowa Iowa 8,902
Greene County, Iowa Iowa 8,722
Lucas County, Iowa Iowa 8,685
Monona County, Iowa Iowa 8,619
Decatur County, Iowa Iowa 7,669
Monroe County, Iowa Iowa 7,546
Adair County, Iowa Iowa 7,471
Worth County, Iowa Iowa 7,380
Van Buren County, Iowa Iowa 7,236
Pocahontas County, Iowa Iowa 7,040
Ida County, Iowa Iowa 6,944
Fremont County, Iowa Iowa 6,570
Wayne County, Iowa Iowa 6,518
Osceola County, Iowa Iowa 6,114
Taylor County, Iowa Iowa 5,901
Audubon County, Iowa Iowa 5,622
Ringgold County, Iowa Iowa 4,664
Adams County, Iowa Iowa 3,641

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