Ranking of Iowa Counties By Percentage of Population that are Non-Hispanic Two Or More Races in 2021
Updated on June 18, 2025.
Based on the US Census Vintage data estimates, in 2021, among all Iowa counties, Scott County had the highest percentage of its population who identified their ethnicity as Non-Hispanic Two Or More Races (2.94%), followed by Linn County (2.79%), and Black Hawk County (2.61%).
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.
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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 Two Or More Races in 2021
25
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| Rank | County | % of County Population |
|---|---|---|
| 1 | Scott County | 2.94 |
| 2 | Linn County | 2.79 |
| 3 | Black Hawk County | 2.61 |
| 4 | Des Moines County | 2.57 |
| 5 | Woodbury County | 2.46 |
| 6 | Johnson County | 2.4 |
| 7 | Polk County | 2.37 |
| 8 | Webster County | 2.35 |
| 9 | Clinton County | 2.22 |
| 10 | Tama County | 2.05 |
| 11 | Lee County | 1.99 |
| 12 | Jefferson County | 1.98 |
| 13 | Pottawattamie County | 1.91 |
| 14 | Cerro Gordo County | 1.82 |
| 15 | Dubuque County | 1.69 |
| 16 | Story County | 1.64 |
| 17 | Henry County | 1.59 |
| 18 | Dallas County | 1.58 |
| 19 | Hamilton County | 1.51 |
| 20 | Poweshiek County | 1.49 |
| 21 | Fremont County | 1.46 |
| 21 | Marshall County | 1.46 |
| 22 | Warren County | 1.44 |
| 22 | Winnebago County | 1.44 |
| 23 | Page County | 1.43 |
| 24 | Appanoose County | 1.41 |
| 24 | Shelby County | 1.41 |
| 25 | Decatur County | 1.4 |
| 25 | Wapello County | 1.4 |
| 26 | Cedar County | 1.39 |
| 27 | Pocahontas County | 1.35 |
| 28 | Monroe County | 1.33 |
| 29 | Wayne County | 1.32 |
| 30 | Fayette County | 1.29 |
| 30 | Floyd County | 1.29 |
| 30 | Marion County | 1.29 |
| 30 | Monona County | 1.29 |
| 31 | Mills County | 1.28 |
| 32 | Clay County | 1.27 |
| 33 | Muscatine County | 1.26 |
| 34 | Madison County | 1.22 |
| 35 | Plymouth County | 1.21 |
| 36 | Greene County | 1.2 |
| 36 | Harrison County | 1.2 |
| 37 | Guthrie County | 1.19 |
| 38 | Benton County | 1.18 |
| 38 | Bremer County | 1.18 |
| 38 | Dickinson County | 1.18 |
| 38 | Ida County | 1.18 |
| 38 | Jackson County | 1.18 |
| 39 | Keokuk County | 1.17 |
| 39 | Washington County | 1.17 |
| 39 | Worth County | 1.17 |
| 40 | Mahaska County | 1.16 |
| 40 | Van Buren County | 1.16 |
| 41 | Osceola County | 1.15 |
| 42 | Boone County | 1.14 |
| 43 | Lyon County | 1.13 |
| 44 | Buena Vista County | 1.12 |
| 44 | Wright County | 1.12 |
| 45 | Buchanan County | 1.11 |
| 45 | Jasper County | 1.11 |
| 46 | Humboldt County | 1.1 |
| 47 | Clayton County | 1.09 |
| 47 | Montgomery County | 1.09 |
| 47 | Palo Alto County | 1.09 |
| 48 | Hardin County | 1.08 |
| 48 | Sac County | 1.08 |
| 49 | Calhoun County | 1.07 |
| 49 | Clarke County | 1.07 |
| 49 | Taylor County | 1.07 |
| 50 | Butler County | 1.05 |
| 51 | O'Brien County | 1.04 |
| 52 | Howard County | 1.02 |
| 53 | Emmet County | 1 |
| 53 | Iowa County | 1 |
| 54 | Adams County | 0.99 |
| 54 | Grundy County | 0.99 |
| 55 | Adair County | 0.98 |
| 56 | Franklin County | 0.97 |
| 57 | Hancock County | 0.95 |
| 58 | Davis County | 0.93 |
| 58 | Louisa County | 0.93 |
| 58 | Lucas County | 0.93 |
| 59 | Carroll County | 0.92 |
| 60 | Kossuth County | 0.91 |
| 60 | Union County | 0.91 |
| 61 | Cherokee County | 0.9 |
| 62 | Audubon County | 0.89 |
| 62 | Jones County | 0.89 |
| 63 | Cass County | 0.87 |
| 64 | Chickasaw County | 0.86 |
| 65 | Delaware County | 0.84 |
| 66 | Ringgold County | 0.82 |
| 67 | Winneshiek County | 0.76 |
| 68 | Crawford County | 0.75 |
| 69 | Sioux County | 0.67 |
| 70 | Allamakee County | 0.64 |
| 70 | Mitchell County | 0.64 |