Ranking of Iowa Counties By Percentage of the Voting-age Population that Identified as Non-Hispanic from Census 2020
Updated on August 29, 2023.
According to the data from the United States 2020 decennial Census, in April 2020, among all of Iowa counties, Wayne County had the highest percentange of a county's voting-age population who identified as Non-Hispanic (not hispanic or latino) (99.42%), followed by Adams County (99.27%), and Grundy County (99.13%).
The chart below shows the top 10 counties, and the table below shows the ranking of all Iowa counties based on the percentage of each county's voting-age population that identified as non-hispanic.
You can see similar ranking information for other states and also for the different 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 the
Voting-age Population that Identified as Non-Hispanic from Census 2020
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| Rank | County | % County Voting-age Population |
|---|---|---|
| 1 | Wayne County | 99.42 |
| 2 | Adams County | 99.27 |
| 3 | Grundy County | 99.13 |
| 4 | Jackson County | 99.04 |
| 5 | Butler County | 99.03 |
| 6 | Van Buren County | 98.98 |
| 7 | Monroe County | 98.95 |
| 8 | Ringgold County | 98.95 |
| 9 | Audubon County | 98.94 |
| 10 | Delaware County | 98.84 |
| 11 | Clayton County | 98.70 |
| 12 | Benton County | 98.68 |
| 13 | Buchanan County | 98.68 |
| 14 | Harrison County | 98.64 |
| 15 | Adair County | 98.58 |
| 16 | Mitchell County | 98.57 |
| 17 | Davis County | 98.51 |
| 18 | Appanoose County | 98.48 |
| 19 | Madison County | 98.39 |
| 20 | Dickinson County | 98.38 |
| 21 | Bremer County | 98.33 |
| 22 | Keokuk County | 98.32 |
| 23 | Marion County | 98.28 |
| 24 | Cass County | 98.26 |
| 25 | Mahaska County | 98.19 |
| 26 | Boone County | 98.09 |
| 27 | Calhoun County | 98.09 |
| 28 | Guthrie County | 98.03 |
| 29 | Cedar County | 98.02 |
| 30 | Worth County | 97.97 |
| 31 | Fayette County | 97.94 |
| 32 | Jones County | 97.93 |
| 33 | Howard County | 97.91 |
| 34 | Lucas County | 97.91 |
| 35 | Iowa County | 97.79 |
| 36 | Mills County | 97.78 |
| 37 | Monona County | 97.77 |
| 38 | Greene County | 97.71 |
| 39 | Jasper County | 97.71 |
| 40 | Winneshiek County | 97.65 |
| 41 | Palo Alto County | 97.62 |
| 42 | Clinton County | 97.57 |
| 43 | Carroll County | 97.56 |
| 44 | Fremont County | 97.54 |
| 45 | Poweshiek County | 97.54 |
| 46 | Warren County | 97.50 |
| 47 | Des Moines County | 97.49 |
| 48 | Dubuque County | 97.49 |
| 49 | Page County | 97.47 |
| 50 | Montgomery County | 97.46 |
| 51 | Floyd County | 97.32 |
| 52 | Sac County | 97.31 |
| 53 | Union County | 97.31 |
| 54 | Shelby County | 97.28 |
| 55 | Decatur County | 97.16 |
| 56 | Lee County | 97.16 |
| 57 | Lyon County | 97.16 |
| 58 | Ida County | 97.09 |
| 59 | Clay County | 96.84 |
| 60 | Humboldt County | 96.84 |
| 61 | Kossuth County | 96.81 |
| 62 | Linn County | 96.80 |
| 63 | Jefferson County | 96.77 |
| 64 | Chickasaw County | 96.71 |
| 65 | Cherokee County | 96.57 |
| 66 | Pocahontas County | 96.20 |
| 67 | Black Hawk County | 96.11 |
| 68 | Hardin County | 96.11 |
| 69 | Cerro Gordo County | 95.79 |
| 70 | Hancock County | 95.78 |
| 71 | Henry County | 95.68 |
| 72 | Webster County | 95.64 |
| 73 | Winnebago County | 95.61 |
| 74 | Plymouth County | 95.35 |
| 75 | Story County | 95.19 |
| 76 | O'Brien County | 94.76 |
| 77 | Taylor County | 94.55 |
| 78 | Washington County | 94.48 |
| 79 | Dallas County | 94.44 |
| 80 | Scott County | 94.35 |
| 81 | Johnson County | 94.07 |
| 82 | Allamakee County | 93.54 |
| 83 | Pottawattamie County | 93.46 |
| 84 | Emmet County | 92.89 |
| 85 | Hamilton County | 92.45 |
| 86 | Polk County | 92.03 |
| 87 | Osceola County | 91.87 |
| 88 | Tama County | 91.82 |
| 89 | Wapello County | 90.43 |
| 90 | Sioux County | 89.12 |
| 91 | Franklin County | 87.51 |
| 92 | Clarke County | 87.03 |
| 93 | Wright County | 86.42 |
| 94 | Louisa County | 86.37 |
| 95 | Woodbury County | 85.46 |
| 96 | Muscatine County | 84.99 |
| 97 | Marshall County | 81.94 |
| 98 | Crawford County | 76.52 |
| 99 | Buena Vista County | 75.17 |