Ranking of Iowa Counties By Percentage of Population that are Non-Hispanic American Indian and Alaska Native in 2020

Updated on June 18, 2025.

Based on the US Census Vintage data estimates, in 2020, among all Iowa counties, Tama County had the highest percentage of its population who identified their ethnicity as Non-Hispanic American Indian and Alaska Native (6.14%), followed by Monona County (1.66%), and Woodbury County (1.48%).

The chart below shows the top 10 counties, and the table below shows the ranking of all Iowa counties.

You can see similar ranking information for other racial and ethnicity groups in the United States.

You can also see similar information for other states, and also the ranking of all counties in the United States.

See this for other years:
Ranking of Iowa Counties By Percentage of Pop. that are Non-Hispanic American Indian and Alaska Native in 2020
Tama
Monona
Woodbury
Montgomery
Page
Osceola
Adams
Greene
Mills
Calhoun
Ranking of Iowa Counties By Percentage of Pop. that are Non-Hispanic American Indian and Alaska Native in 2020
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Rank County % of County Population
1 Tama County 6.14
2 Monona County 1.66
3 Woodbury County 1.48
4 Montgomery County 0.52
4 Page County 0.52
5 Osceola County 0.47
6 Adams County 0.46
6 Greene County 0.46
7 Mills County 0.45
8 Calhoun County 0.43
8 Decatur County 0.43
8 Pottawattamie County 0.43
9 Plymouth County 0.42
10 Appanoose County 0.36
10 Emmet County 0.36
10 Jones County 0.36
11 Boone County 0.35
11 Guthrie County 0.35
11 Louisa County 0.35
11 Marshall County 0.35
11 Shelby County 0.35
12 Fremont County 0.34
12 Jasper County 0.34
12 Webster County 0.34
13 Crawford County 0.33
14 Clay County 0.32
14 Des Moines County 0.32
15 Clarke County 0.31
16 Cherokee County 0.3
16 Davis County 0.3
16 Hardin County 0.3
16 Henry County 0.3
16 Howard County 0.3
16 Madison County 0.3
16 Mahaska County 0.3
16 Palo Alto County 0.3
16 Poweshiek County 0.3
17 Union County 0.29
18 Harrison County 0.28
18 Wapello County 0.28
19 Benton County 0.27
19 Franklin County 0.27
20 Clinton County 0.26
20 Jefferson County 0.26
20 Ringgold County 0.26
21 Adair County 0.25
21 Hamilton County 0.25
21 Jackson County 0.25
21 Lee County 0.25
21 Warren County 0.25
22 Cerro Gordo County 0.24
22 Muscatine County 0.24
23 Lucas County 0.23
23 Pocahontas County 0.23
24 Sioux County 0.22
24 Winnebago County 0.22
25 Allamakee County 0.21
25 Black Hawk County 0.21
25 Fayette County 0.21
25 Johnson County 0.21
25 Wright County 0.21
26 Cass County 0.2
26 Ida County 0.2
26 Monroe County 0.2
26 Scott County 0.2
26 Wayne County 0.2
26 Worth County 0.2
27 Taylor County 0.19
28 Audubon County 0.18
28 Dubuque County 0.18
28 Humboldt County 0.18
28 Linn County 0.18
28 Lyon County 0.18
28 O'Brien County 0.18
28 Van Buren County 0.18
28 Washington County 0.18
29 Cedar County 0.17
29 Dallas County 0.17
29 Floyd County 0.17
29 Sac County 0.17
29 Story County 0.17
30 Carroll County 0.16
30 Delaware County 0.16
30 Dickinson County 0.16
31 Buchanan County 0.15
31 Grundy County 0.15
31 Hancock County 0.15
31 Keokuk County 0.15
31 Marion County 0.15
32 Buena Vista County 0.14
32 Iowa County 0.14
32 Kossuth County 0.14
32 Polk County 0.14
33 Butler County 0.13
34 Bremer County 0.12
34 Clayton County 0.12
34 Mitchell County 0.12
35 Winneshiek County 0.1
36 Chickasaw County 0.07