Ranking of Iowa Counties By Percentage of Population that are American Indian and Alaska Native Alone in 2015

Updated on June 18, 2025.

Based on the US Census Vintage data estimates, in 2015, among all Iowa counties, Tama County had the highest percentage of its population who identified their race as American Indian and Alaska Native Alone (8.28%), followed by Woodbury County (2.93%), and Emmet County (1.51%).

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 American Indian and Alaska Native Alone in 2015
Tama
Woodbury
Emmet
Crawford
Monona
Wapello
Clarke
Marshall
Page
Pottawattamie
Ranking of Iowa Counties By Percentage of Pop. that are American Indian and Alaska Native Alone in 2015
0 of 0
Rank County % of County Population
1 Tama County 8.28
2 Woodbury County 2.93
3 Emmet County 1.51
4 Crawford County 1.32
5 Monona County 1.15
6 Wapello County 0.85
7 Clarke County 0.79
7 Marshall County 0.79
8 Page County 0.77
9 Pottawattamie County 0.71
10 Allamakee County 0.67
10 Plymouth County 0.67
11 Muscatine County 0.62
12 Buena Vista County 0.55
13 Sioux County 0.54
14 Decatur County 0.52
15 Franklin County 0.51
15 Wright County 0.51
16 Pocahontas County 0.49
17 Webster County 0.48
18 Cass County 0.46
19 Mills County 0.45
19 Palo Alto County 0.45
20 Louisa County 0.44
20 Montgomery County 0.44
21 Adams County 0.43
21 Boone County 0.43
22 Cherokee County 0.41
22 Jasper County 0.41
22 Madison County 0.41
23 Hamilton County 0.4
24 Hardin County 0.39
24 Mahaska County 0.39
24 Scott County 0.39
24 Union County 0.39
25 Calhoun County 0.38
25 Polk County 0.38
26 Dallas County 0.37
26 Shelby County 0.37
27 Black Hawk County 0.36
27 Henry County 0.36
27 Worth County 0.36
28 Greene County 0.35
28 Guthrie County 0.35
28 Harrison County 0.35
28 Johnson County 0.35
28 Lyon County 0.35
29 Clinton County 0.34
29 Osceola County 0.34
30 Fremont County 0.32
30 Kossuth County 0.32
30 O'Brien County 0.32
30 Taylor County 0.32
31 Cerro Gordo County 0.31
31 Des Moines County 0.31
31 Jones County 0.31
31 Washington County 0.31
32 Appanoose County 0.3
32 Carroll County 0.3
33 Jackson County 0.29
33 Poweshiek County 0.29
34 Clay County 0.28
34 Floyd County 0.28
34 Jefferson County 0.28
34 Lee County 0.28
34 Lucas County 0.28
34 Warren County 0.28
34 Winnebago County 0.28
35 Davis County 0.27
35 Dickinson County 0.27
35 Ida County 0.27
35 Linn County 0.27
36 Dubuque County 0.26
36 Fayette County 0.26
36 Story County 0.26
37 Hancock County 0.25
38 Wayne County 0.24
39 Benton County 0.23
39 Humboldt County 0.23
39 Iowa County 0.23
40 Buchanan County 0.22
40 Marion County 0.22
40 Mitchell County 0.22
40 Ringgold County 0.22
41 Audubon County 0.21
41 Keokuk County 0.21
42 Cedar County 0.2
42 Monroe County 0.2
43 Van Buren County 0.19
44 Sac County 0.18
45 Howard County 0.17
46 Butler County 0.16
46 Clayton County 0.16
46 Delaware County 0.16
47 Adair County 0.13
47 Bremer County 0.13
48 Chickasaw County 0.12
49 Winneshiek County 0.11
50 Grundy County 0.09