Ranking of Iowa Counties By Percentage of Population that are Non-Hispanic White in 2010
Updated on June 18, 2025.
Based on the US Census Vintage data estimates, in 2010, among all Iowa counties, Audubon County had the highest percentage of its population who identified their ethnicity as Non-Hispanic White (98.1%), followed by Mitchell County (98.08%), and Delaware County (98%).
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 White in 2010
25
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| Rank | County | % of County Population |
|---|---|---|
| 1 | Audubon County | 98.1 |
| 2 | Mitchell County | 98.08 |
| 3 | Delaware County | 98 |
| 3 | Lucas County | 98 |
| 4 | Grundy County | 97.92 |
| 5 | Butler County | 97.86 |
| 5 | Keokuk County | 97.86 |
| 6 | Adair County | 97.71 |
| 6 | Davis County | 97.71 |
| 7 | Wayne County | 97.59 |
| 8 | Dickinson County | 97.49 |
| 9 | Ida County | 97.38 |
| 10 | Van Buren County | 97.37 |
| 11 | Benton County | 97.35 |
| 12 | Adams County | 97.34 |
| 13 | Harrison County | 97.33 |
| 14 | Howard County | 97.3 |
| 15 | Lyon County | 97.24 |
| 16 | Kossuth County | 97.22 |
| 17 | Madison County | 97.17 |
| 18 | Buchanan County | 97.09 |
| 19 | Clayton County | 96.89 |
| 20 | Chickasaw County | 96.83 |
| 20 | Ringgold County | 96.83 |
| 20 | Sac County | 96.83 |
| 21 | Jackson County | 96.79 |
| 22 | Appanoose County | 96.78 |
| 23 | Iowa County | 96.74 |
| 24 | Shelby County | 96.73 |
| 25 | Cedar County | 96.72 |
| 26 | Cass County | 96.7 |
| 27 | Guthrie County | 96.67 |
| 28 | Carroll County | 96.66 |
| 28 | Greene County | 96.66 |
| 29 | Bremer County | 96.62 |
| 30 | Palo Alto County | 96.58 |
| 31 | Worth County | 96.48 |
| 32 | Pocahontas County | 96.27 |
| 33 | Monroe County | 96.23 |
| 34 | Monona County | 96.22 |
| 35 | Calhoun County | 96.17 |
| 36 | Union County | 95.96 |
| 37 | Jasper County | 95.8 |
| 37 | Warren County | 95.8 |
| 38 | Boone County | 95.79 |
| 39 | Winneshiek County | 95.75 |
| 40 | Fayette County | 95.71 |
| 40 | Fremont County | 95.71 |
| 41 | Cherokee County | 95.67 |
| 42 | Marion County | 95.58 |
| 43 | Mills County | 95.57 |
| 44 | Montgomery County | 95.51 |
| 45 | Jones County | 95.5 |
| 46 | Plymouth County | 95.16 |
| 47 | Clay County | 95.13 |
| 48 | Mahaska County | 94.91 |
| 49 | Humboldt County | 94.77 |
| 50 | Floyd County | 94.73 |
| 50 | Hancock County | 94.73 |
| 51 | O'Brien County | 94.51 |
| 52 | Winnebago County | 94.3 |
| 53 | Decatur County | 94 |
| 54 | Hardin County | 93.68 |
| 55 | Poweshiek County | 93.55 |
| 56 | Taylor County | 92.93 |
| 57 | Dubuque County | 92.86 |
| 58 | Allamakee County | 92.75 |
| 59 | Washington County | 92.72 |
| 60 | Page County | 92.68 |
| 61 | Cerro Gordo County | 92.61 |
| 62 | Clinton County | 92.58 |
| 63 | Osceola County | 91.86 |
| 64 | Lee County | 91.57 |
| 65 | Hamilton County | 91.54 |
| 66 | Emmet County | 90.32 |
| 67 | Webster County | 90.04 |
| 68 | Henry County | 89.95 |
| 69 | Pottawattamie County | 89.78 |
| 70 | Des Moines County | 89.5 |
| 71 | Linn County | 89.31 |
| 72 | Sioux County | 89.2 |
| 73 | Wright County | 88.78 |
| 74 | Dallas County | 88.67 |
| 75 | Clarke County | 88.08 |
| 76 | Franklin County | 87.47 |
| 77 | Wapello County | 87.32 |
| 78 | Story County | 86.91 |
| 79 | Jefferson County | 86.23 |
| 80 | Black Hawk County | 83.85 |
| 81 | Tama County | 83.82 |
| 82 | Johnson County | 83.07 |
| 83 | Scott County | 82.91 |
| 84 | Louisa County | 81.72 |
| 85 | Muscatine County | 80.77 |
| 85 | Polk County | 80.77 |
| 86 | Marshall County | 77.94 |
| 87 | Woodbury County | 77.51 |
| 88 | Crawford County | 72.94 |
| 89 | Buena Vista County | 67.61 |
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