Ranking of Iowa Counties By Percentage of Population that are Non-Hispanic American Indian and Alaska Native in 2018

Updated on June 18, 2025.

Based on the US Census Vintage data estimates, in 2018, 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 (6.12%), followed by Woodbury County (1.5%), and Monona County (1.16%).

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.

You may also be interested in:
Ranking of Iowa Counties By Non-Hispanic American Indian and Alaska Native Population in 2018

Related Topics: Iowa Census Vintage Data Topic List.

Data Source: US Census Bureau (Vintage).

See this for other years:

Ranking of Iowa Counties By Percentage of Pop. that are Non-Hispanic American Indian and Alaska Native in 2018

Tama

Woodbury

Monona

Page

Mills

Emmet

Adams

Montgomery

Osceola

Pottawattamie

Ranking of Iowa Counties By Percentage of Pop. that are Non-Hispanic American Indian and Alaska Native in 2018

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Rank	County	% of County Population
1	Tama County	6.12
2	Woodbury County	1.5
3	Monona County	1.16
4	Page County	0.56
5	Mills County	0.48
6	Emmet County	0.46
7	Adams County	0.44
8	Montgomery County	0.43
8	Osceola County	0.43
8	Pottawattamie County	0.43
9	Decatur County	0.41
10	Calhoun County	0.4
10	Greene County	0.4
10	Plymouth County	0.4
11	Marshall County	0.37
12	Fremont County	0.36
12	Shelby County	0.36
13	Cherokee County	0.35
14	Boone County	0.33
14	Clarke County	0.33
14	Louisa County	0.33
14	Palo Alto County	0.33
14	Webster County	0.33
15	Guthrie County	0.31
15	Jones County	0.31
16	Hardin County	0.3
17	Jasper County	0.29
17	Union County	0.29
18	Appanoose County	0.28
18	Des Moines County	0.28
18	Harrison County	0.28
18	Henry County	0.28
18	Madison County	0.28
18	Mahaska County	0.28
18	Poweshiek County	0.28
18	Wapello County	0.28
19	Clay County	0.27
20	Adair County	0.26
20	Allamakee County	0.26
20	Hamilton County	0.26
21	Ida County	0.25
21	Jefferson County	0.25
21	Lee County	0.25
21	Muscatine County	0.25
22	Benton County	0.24
22	Clinton County	0.24
22	Lucas County	0.24
22	Ringgold County	0.24
23	Crawford County	0.23
23	Franklin County	0.23
23	Jackson County	0.23
23	Scott County	0.23
23	Winnebago County	0.23
24	Pocahontas County	0.22
24	Sioux County	0.22
24	Warren County	0.22
24	Wright County	0.22
25	Cerro Gordo County	0.21
25	Hancock County	0.21
25	Taylor County	0.21
26	Audubon County	0.2
26	Johnson County	0.2
26	Linn County	0.2
26	Van Buren County	0.2
27	Black Hawk County	0.19
27	Davis County	0.19
27	Dubuque County	0.19
27	Monroe County	0.19
27	Worth County	0.19
28	Carroll County	0.18
28	Lyon County	0.18
28	Story County	0.18
28	Washington County	0.18
29	Cass County	0.17
29	Dallas County	0.17
29	Floyd County	0.17
29	O'Brien County	0.17
29	Wayne County	0.17
30	Fayette County	0.16
30	Humboldt County	0.16
30	Polk County	0.16
31	Buchanan County	0.15
31	Cedar County	0.15
31	Iowa County	0.15
31	Marion County	0.15
32	Buena Vista County	0.14
32	Sac County	0.14
33	Delaware County	0.13
33	Dickinson County	0.13
33	Keokuk County	0.13
33	Kossuth County	0.13
34	Bremer County	0.12
34	Butler County	0.12
34	Grundy County	0.12
35	Clayton County	0.1
35	Howard County	0.1
35	Mitchell County	0.1
35	Winneshiek County	0.1
36	Chickasaw County	0.08