Iowa Population in 2010 (April 1) - base for estimates by County

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Population estimates base, April 1, 2010, (V2019) - (Number)
County Value
Adair 7,682
Adams 4,029
Allamakee 14,328
Appanoose 12,887
Audubon 6,119
Benton 26,069
Black Hawk 131,090
Boone 26,308
Bremer 24,276
Buchanan 20,958
Buena Vista 20,265
Butler 14,869
Calhoun 10,177
Carroll 20,816
Cass 13,952
Cedar 18,495
Cerro Gordo 44,151
Cherokee 12,067
Chickasaw 12,442
Clarke 9,286
Clay 16,667
Clayton 18,128
Clinton 49,117
Crawford 17,096
Dallas 66,138
Davis 8,753
Decatur 8,457
Delaware 17,770
Des Moines 40,325
Dickinson 16,667
Dubuque 93,643
Emmet 10,302
Fayette 20,882
Floyd 16,295
Franklin 10,680
Fremont 7,438
Greene 9,337
Grundy 12,453
Guthrie 10,955
Hamilton 15,673
Hancock 11,338
Hardin 17,534
Harrison 14,937
Henry 20,145
Howard 9,564
Humboldt 9,814
Ida 7,089
Iowa 16,355
Jackson 19,853
Jasper 36,842
Jefferson 16,840
Johnson 130,882
Jones 20,636
Keokuk 10,511
Kossuth 15,545
Lee 35,862
Linn 211,238
Louisa 11,387
Lucas 8,900
Lyon 11,581
Madison 15,679
Mahaska 22,382
Marion 33,307
Marshall 40,648
Mills 15,059
Mitchell 10,776
Monona 9,242
Monroe 7,972
Montgomery 10,740
Muscatine 42,749
O'Brien 14,398
Osceola 6,462
Page 15,946
Palo Alto 9,421
Plymouth 24,984
Pocahontas 7,310
Polk 430,632
Pottawattamie 93,149
Poweshiek 18,915
Ringgold 5,130
Sac 10,350
Scott 165,223
Shelby 12,169
Sioux 33,704
Story 89,542
Tama 17,767
Taylor 6,317
Union 12,534
Van Buren 7,571
Wapello 35,624
Warren 46,228
Washington 21,704
Wayne 6,403
Webster 38,013
Winnebago 10,874
Winneshiek 21,058
Woodbury 102,175
Worth 7,591
Wright 13,229