Iowa American Indian and Alaska Native Alone Population By County in 2020

Updated on June 16, 2025.

Based on the US Census Vintage data estimates, in 2020, the American Indian and Alaska Native Alone population in Iowa was 18,004 and represented 0.56% of the total Iowa population (3,190,904).

Among Iowa counties, Woodbury County had the highest number of people who identified as American Indian and Alaska Native Alone (3,309), followed by Polk County (1,893), and Tama County (1,419).

In the map below, we show the number and percentage of each county's American Indian and Alaska Native Alone population, as well as the gender percentages when you interact with the map. The data can also be found in a table below. You can use the table to sort, filter, and explore the data further.

You can see similar information for other states and also by state for the United States.

You can also see similar information for other racial and ethnicity groups in Iowa.

See this for other years:
Iowa American Indian and Alaska Native Alone Population By County in 2020
Iowa American Indian and Alaska Native Alone Population By County in 2020
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County American Indian & Alaska Native Pop. % of County Population
Adair 20 0.27
Adams 19 0.51
Allamakee 102 0.73
Appanoose 48 0.39
Audubon 13 0.23
Benton 90 0.35
Black Hawk 552 0.42
Boone 149 0.56
Bremer 46 0.18
Buchanan 49 0.24
Buena Vista 146 0.7
Butler 29 0.2
Calhoun 48 0.49
Carroll 59 0.28
Cass 66 0.5
Cedar 46 0.25
Cerro Gordo 159 0.37
Cherokee 47 0.4
Chickasaw 16 0.13
Clarke 109 1.12
Clay 73 0.45
Clayton 40 0.24
Clinton 188 0.41
Crawford 240 1.46
Dallas 348 0.35
Davis 33 0.36
Decatur 43 0.56
Delaware 31 0.18
Des Moines 152 0.39
Dickinson 48 0.27
Dubuque 303 0.31
Emmet 148 1.58
Fayette 64 0.33
Floyd 64 0.41
Franklin 92 0.92
Fremont 22 0.34
Greene 53 0.61
Grundy 21 0.17
Guthrie 44 0.42
Hamilton 112 0.75
Hancock 36 0.34
Hardin 79 0.47
Harrison 54 0.37
Henry 89 0.44
Howard 54 0.57
Humboldt 34 0.35
Ida 25 0.36
Iowa 49 0.29
Jackson 68 0.35
Jasper 179 0.47
Jefferson 57 0.36
Johnson 586 0.38
Jones 98 0.48
Keokuk 35 0.35
Kossuth 78 0.53
Lee 107 0.32
Linn 642 0.28
Louisa 73 0.68
Lucas 34 0.4
Lyon 61 0.51
Madison 73 0.44
Mahaska 101 0.46
Marion 85 0.25
Marshall 347 0.87
Mills 102 0.71
Mitchell 25 0.24
Monona 156 1.78
Monroe 18 0.24
Montgomery 63 0.61
Muscatine 295 0.68
O'Brien 63 0.45
Osceola 39 0.63
Page 104 0.69
Palo Alto 45 0.5
Plymouth 236 0.92
Pocahontas 49 0.69
Polk 1893 0.38
Pottawattamie 764 0.82
Poweshiek 75 0.4
Ringgold 13 0.28
Sac 21 0.21
Scott 641 0.37
Shelby 61 0.52
Sioux 258 0.72
Story 296 0.3
Tama 1419 8.31
Taylor 22 0.38
Union 58 0.48
Van Buren 14 0.19
Wapello 330 0.93
Warren 177 0.34
Washington 76 0.34
Wayne 17 0.26
Webster 200 0.54
Winnebago 44 0.41
Winneshiek 34 0.17
Woodbury 3309 3.12
Worth 27 0.36
Wright 84 0.65