Iowa Population by County
year 2000


Iowa Population by County
year 2000

Area Population
Polk County 374,601
Linn County 191,701
Scott County 158,668
Black Hawk County 128,012
Johnson County 111,006
Woodbury County 103,877
Dubuque County 89,143
Pottawattamie County 87,704
Story County 79,981
Clinton County 50,149
Cerro Gordo County 46,447
Des Moines County 42,351
Muscatine County 41,722
Dallas County 40,750
Warren County 40,671
Webster County 40,235
Marshall County 39,311
Lee County 38,052
Jasper County 37,213
Wapello County 36,051
Marion County 32,052
Sioux County 31,589
Boone County 26,224
Benton County 25,308
Plymouth County 24,849
Bremer County 23,325
Mahaska County 22,335
Fayette County 22,008
Carroll County 21,421
Winneshiek County 21,310
Buchanan County 21,093
Washington County 20,670
Buena Vista County 20,411
Henry County 20,336
Jackson County 20,296
Jones County 20,221
Poweshiek County 18,815
Hardin County 18,812
Clayton County 18,678
Delaware County 18,404
Cedar County 18,187
Tama County 18,103
Clay County 17,372
Kossuth County 17,163
Page County 16,976
Crawford County 16,942
Floyd County 16,900
Hamilton County 16,438
Dickinson County 16,424
Jefferson County 16,181
Iowa County 15,671
Harrison County 15,666
Butler County 15,305
O'Brien County 15,102
Cass County 14,684
Allamakee County 14,675
Mills County 14,547
Wright County 14,334
Madison County 14,019
Appanoose County 13,721
Shelby County 13,173
Chickasaw County 13,095
Cherokee County 13,035
Grundy County 12,369
Union County 12,309
Louisa County 12,183
Hancock County 12,100
Montgomery County 11,771
Lyon County 11,763
Winnebago County 11,723
Sac County 11,529
Keokuk County 11,400
Guthrie County 11,353
Calhoun County 11,115
Emmet County 11,027
Mitchell County 10,874
Franklin County 10,704
Humboldt County 10,381
Greene County 10,366
Palo Alto County 10,147
Monona County 10,020
Howard County 9,932
Lucas County 9,422
Clarke County 9,133
Decatur County 8,689
Pocahontas County 8,662
Davis County 8,541
Adair County 8,243
Monroe County 8,016
Fremont County 8,010
Worth County 7,909
Ida County 7,837
Van Buren County 7,809
Osceola County 7,003
Taylor County 6,958
Audubon County 6,830
Wayne County 6,730
Ringgold County 5,469
Adams County 4,482