Ranking of Iowa Counties By Percentage of Population that are Non-Hispanic Two Or More Races in 2018
Updated on June 18, 2025.
Based on the US Census Vintage data estimates, in 2018, among all Iowa counties, Scott County had the highest percentage of its population who identified their ethnicity as Non-Hispanic Two Or More Races (2.79%), followed by Linn County (2.61%), and Des Moines County (2.52%).
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 2018
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| Rank | County | % of County Population |
|---|---|---|
| 1 | Scott County | 2.79 |
| 2 | Linn County | 2.61 |
| 3 | Des Moines County | 2.52 |
| 4 | Black Hawk County | 2.37 |
| 5 | Woodbury County | 2.34 |
| 6 | Johnson County | 2.25 |
| 7 | Polk County | 2.2 |
| 8 | Webster County | 2.13 |
| 9 | Clinton County | 1.99 |
| 10 | Tama County | 1.89 |
| 11 | Lee County | 1.73 |
| 11 | Pottawattamie County | 1.73 |
| 12 | Cerro Gordo County | 1.62 |
| 13 | Henry County | 1.58 |
| 13 | Story County | 1.58 |
| 14 | Jefferson County | 1.56 |
| 15 | Dubuque County | 1.54 |
| 16 | Hamilton County | 1.48 |
| 17 | Poweshiek County | 1.43 |
| 18 | Dallas County | 1.42 |
| 19 | Wapello County | 1.37 |
| 20 | Marshall County | 1.36 |
| 21 | Page County | 1.35 |
| 22 | Pocahontas County | 1.34 |
| 23 | Monona County | 1.31 |
| 24 | Appanoose County | 1.28 |
| 24 | Decatur County | 1.28 |
| 24 | Winnebago County | 1.28 |
| 25 | Floyd County | 1.27 |
| 26 | Fayette County | 1.24 |
| 26 | Harrison County | 1.24 |
| 26 | Warren County | 1.24 |
| 27 | Van Buren County | 1.23 |
| 28 | Greene County | 1.22 |
| 28 | Muscatine County | 1.22 |
| 29 | Madison County | 1.21 |
| 30 | Jackson County | 1.2 |
| 30 | Marion County | 1.2 |
| 31 | Cedar County | 1.18 |
| 31 | Guthrie County | 1.18 |
| 32 | Clarke County | 1.17 |
| 33 | Worth County | 1.16 |
| 34 | Clay County | 1.15 |
| 35 | Wayne County | 1.13 |
| 36 | Mills County | 1.11 |
| 36 | Montgomery County | 1.11 |
| 37 | Mahaska County | 1.1 |
| 37 | Washington County | 1.1 |
| 38 | Humboldt County | 1.09 |
| 39 | Buena Vista County | 1.08 |
| 39 | Plymouth County | 1.08 |
| 40 | Boone County | 1.06 |
| 40 | Fremont County | 1.06 |
| 40 | Hardin County | 1.06 |
| 41 | Jasper County | 1.05 |
| 41 | Osceola County | 1.05 |
| 41 | Sac County | 1.05 |
| 41 | Wright County | 1.05 |
| 42 | Franklin County | 1.03 |
| 43 | Bremer County | 1.02 |
| 43 | Ida County | 1.02 |
| 44 | Buchanan County | 1.01 |
| 44 | Monroe County | 1.01 |
| 44 | Palo Alto County | 1.01 |
| 45 | Benton County | 0.99 |
| 45 | Shelby County | 0.99 |
| 46 | Carroll County | 0.98 |
| 46 | Kossuth County | 0.98 |
| 47 | Iowa County | 0.97 |
| 48 | Cherokee County | 0.96 |
| 48 | Davis County | 0.96 |
| 48 | Lyon County | 0.96 |
| 49 | Calhoun County | 0.94 |
| 50 | Louisa County | 0.93 |
| 51 | Emmet County | 0.92 |
| 52 | Hancock County | 0.9 |
| 53 | Audubon County | 0.89 |
| 53 | Keokuk County | 0.89 |
| 54 | Grundy County | 0.86 |
| 54 | Union County | 0.86 |
| 55 | Butler County | 0.84 |
| 55 | Dickinson County | 0.84 |
| 56 | O'Brien County | 0.83 |
| 57 | Clayton County | 0.82 |
| 57 | Howard County | 0.82 |
| 58 | Ringgold County | 0.81 |
| 58 | Taylor County | 0.81 |
| 59 | Cass County | 0.76 |
| 60 | Adair County | 0.75 |
| 60 | Delaware County | 0.75 |
| 61 | Adams County | 0.74 |
| 62 | Chickasaw County | 0.73 |
| 62 | Lucas County | 0.73 |
| 63 | Jones County | 0.71 |
| 64 | Winneshiek County | 0.7 |
| 65 | Sioux County | 0.69 |
| 66 | Mitchell County | 0.65 |
| 67 | Allamakee County | 0.6 |
| 68 | Crawford County | 0.59 |
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