Ranking of Iowa Counties By Percentage of Voting-age Population that were White Alone from Census 2020
Updated on August 26, 2023.
According to the data from the United States 2020 decennial Census, as at April 2020, among all Iowa counties, Audubon County had the highest percentage of its voting-age population that identified their race as White Alone (97.39%), followed by Butler County (97.17%), and Delaware County (96.89%).
The chart below shows the top 10 counties, and the table below shows the ranking of all Iowa counties based on the percentage of the voting-age population that identified as White Alone.
You can see similar ranking information for other states. You can also see similar rankings of counties for other racial groups in Iowa.
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Related Topics: Iowa Census 2020 Topic List.
Data Source: US Census Bureau, 2020 Census.
Ranking of Iowa Counties By
Percentage of Voting-age Population that were White Alone
from Census 2020
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| Rank | County | White Alone % of County Voting-age Pop. |
|---|---|---|
| 1 | Audubon County | 97.39 |
| 2 | Butler County | 97.17 |
| 3 | Delaware County | 96.89 |
| 4 | Wayne County | 96.85 |
| 5 | Grundy County | 96.76 |
| 6 | Davis County | 96.71 |
| 7 | Ringgold County | 96.55 |
| 8 | Van Buren County | 96.39 |
| 9 | Buchanan County | 96.34 |
| 10 | Monroe County | 96.26 |
| 11 | Harrison County | 96.20 |
| 12 | Dickinson County | 96.18 |
| 12 | Mitchell County | 96.18 |
| 13 | Adair County | 96.13 |
| 13 | Clayton County | 96.13 |
| 14 | Keokuk County | 96.05 |
| 15 | Benton County | 95.97 |
| 16 | Adams County | 95.92 |
| 17 | Ida County | 95.91 |
| 18 | Worth County | 95.75 |
| 19 | Jackson County | 95.71 |
| 20 | Cass County | 95.69 |
| 21 | Lucas County | 95.68 |
| 22 | Appanoose County | 95.61 |
| 23 | Guthrie County | 95.57 |
| 24 | Lyon County | 95.53 |
| 25 | Howard County | 95.52 |
| 26 | Sac County | 95.50 |
| 27 | Greene County | 95.32 |
| 28 | Madison County | 95.30 |
| 29 | Cedar County | 95.27 |
| 30 | Palo Alto County | 95.24 |
| 31 | Carroll County | 95.22 |
| 32 | Bremer County | 95.16 |
| 33 | Kossuth County | 94.98 |
| 34 | Calhoun County | 94.97 |
| 35 | Iowa County | 94.94 |
| 36 | Chickasaw County | 94.90 |
| 37 | Boone County | 94.85 |
| 37 | Fayette County | 94.85 |
| 38 | Montgomery County | 94.77 |
| 39 | Winneshiek County | 94.70 |
| 40 | Fremont County | 94.61 |
| 41 | Shelby County | 94.55 |
| 42 | Humboldt County | 94.52 |
| 43 | Cherokee County | 94.48 |
| 44 | Mills County | 94.32 |
| 45 | Marion County | 94.26 |
| 46 | Monona County | 94.25 |
| 47 | Union County | 94.24 |
| 48 | Clay County | 94.21 |
| 49 | Jones County | 93.98 |
| 50 | Warren County | 93.74 |
| 51 | Hancock County | 93.66 |
| 52 | Jasper County | 93.46 |
| 53 | Hardin County | 93.25 |
| 54 | Mahaska County | 93.17 |
| 55 | Pocahontas County | 93.02 |
| 56 | Taylor County | 93.00 |
| 57 | Decatur County | 92.95 |
| 58 | Poweshiek County | 92.77 |
| 59 | O'Brien County | 92.62 |
| 60 | Plymouth County | 92.30 |
| 61 | Floyd County | 92.26 |
| 62 | Washington County | 91.95 |
| 63 | Clinton County | 91.88 |
| 64 | Allamakee County | 91.86 |
| 65 | Winnebago County | 91.73 |
| 66 | Lee County | 91.61 |
| 67 | Page County | 91.52 |
| 68 | Cerro Gordo County | 91.39 |
| 69 | Dubuque County | 90.99 |
| 70 | Emmet County | 90.96 |
| 71 | Osceola County | 90.21 |
| 72 | Henry County | 89.41 |
| 73 | Hamilton County | 89.29 |
| 74 | Pottawattamie County | 88.67 |
| 75 | Webster County | 88.65 |
| 76 | Sioux County | 88.62 |
| 77 | Des Moines County | 88.33 |
| 78 | Jefferson County | 87.76 |
| 79 | Franklin County | 86.99 |
| 80 | Clarke County | 86.46 |
| 81 | Dallas County | 85.76 |
| 82 | Linn County | 85.72 |
| 83 | Wright County | 85.45 |
| 84 | Louisa County | 83.28 |
| 85 | Tama County | 83.20 |
| 86 | Wapello County | 83.04 |
| 87 | Story County | 82.95 |
| 88 | Muscatine County | 82.93 |
| 89 | Scott County | 82.60 |
| 90 | Black Hawk County | 81.90 |
| 91 | Polk County | 79.42 |
| 92 | Johnson County | 79.37 |
| 93 | Marshall County | 78.12 |
| 94 | Woodbury County | 76.32 |
| 95 | Crawford County | 73.67 |
| 96 | Buena Vista County | 65.08 |