Ranking of Iowa Counties By Percentage of the Population that Identified as Non-Hispanic from Census 2020
Updated on April 26, 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 population who identified as Non-Hispanic (not hispanic or latino) (99.06%), followed by Adams County (98.87%), and Grundy County (98.82%).
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 population that identified as non-hispanic.
You can see similar ranking information for other states and also for the different racial groups and the different ethnicities 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
Population that Identified as Non-Hispanic from Census 2020
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| Rank | County | % County Population |
|---|---|---|
| 1 | Wayne County | 99.06 |
| 2 | Adams County | 98.87 |
| 3 | Grundy County | 98.82 |
| 4 | Jackson County | 98.78 |
| 5 | Butler County | 98.72 |
| 6 | Delaware County | 98.61 |
| 7 | Audubon County | 98.48 |
| 8 | Ringgold County | 98.48 |
| 9 | Monroe County | 98.46 |
| 10 | Davis County | 98.42 |
| 11 | Van Buren County | 98.42 |
| 12 | Buchanan County | 98.36 |
| 13 | Benton County | 98.19 |
| 14 | Mitchell County | 98.17 |
| 15 | Appanoose County | 98.13 |
| 16 | Madison County | 98.09 |
| 17 | Clayton County | 97.99 |
| 18 | Harrison County | 97.99 |
| 19 | Bremer County | 97.96 |
| 20 | Marion County | 97.91 |
| 21 | Keokuk County | 97.86 |
| 22 | Mahaska County | 97.84 |
| 23 | Dickinson County | 97.71 |
| 24 | Lucas County | 97.71 |
| 25 | Cass County | 97.67 |
| 26 | Calhoun County | 97.62 |
| 27 | Jones County | 97.59 |
| 28 | Adair County | 97.52 |
| 29 | Cedar County | 97.50 |
| 30 | Guthrie County | 97.42 |
| 31 | Boone County | 97.35 |
| 32 | Fayette County | 97.34 |
| 33 | Monona County | 97.30 |
| 34 | Howard County | 97.28 |
| 35 | Decatur County | 97.24 |
| 36 | Poweshiek County | 97.17 |
| 37 | Worth County | 97.17 |
| 38 | Carroll County | 97.14 |
| 39 | Jasper County | 97.13 |
| 40 | Fremont County | 97.12 |
| 41 | Winneshiek County | 97.09 |
| 42 | Greene County | 97.08 |
| 43 | Iowa County | 97.03 |
| 44 | Dubuque County | 97.00 |
| 45 | Page County | 96.95 |
| 46 | Palo Alto County | 96.95 |
| 47 | Warren County | 96.84 |
| 48 | Mills County | 96.82 |
| 49 | Des Moines County | 96.80 |
| 50 | Union County | 96.71 |
| 51 | Clinton County | 96.69 |
| 52 | Lee County | 96.69 |
| 53 | Lyon County | 96.59 |
| 54 | Shelby County | 96.49 |
| 55 | Floyd County | 96.48 |
| 56 | Montgomery County | 96.41 |
| 57 | Sac County | 96.39 |
| 58 | Ida County | 96.36 |
| 59 | Linn County | 96.13 |
| 60 | Jefferson County | 96.11 |
| 61 | Chickasaw County | 96.00 |
| 62 | Kossuth County | 95.93 |
| 63 | Clay County | 95.70 |
| 64 | Humboldt County | 95.52 |
| 65 | Cherokee County | 95.45 |
| 66 | Hardin County | 95.15 |
| 67 | Black Hawk County | 95.08 |
| 68 | Pocahontas County | 95.00 |
| 69 | Story County | 94.89 |
| 70 | Cerro Gordo County | 94.80 |
| 71 | Henry County | 94.71 |
| 72 | Winnebago County | 94.44 |
| 73 | Webster County | 94.42 |
| 74 | Hancock County | 94.31 |
| 75 | Plymouth County | 94.18 |
| 76 | Dallas County | 93.46 |
| 77 | Johnson County | 93.33 |
| 78 | Taylor County | 93.23 |
| 79 | Scott County | 93.08 |
| 80 | O'Brien County | 93.06 |
| 81 | Washington County | 92.86 |
| 82 | Pottawattamie County | 91.82 |
| 83 | Allamakee County | 91.32 |
| 84 | Emmet County | 90.55 |
| 85 | Hamilton County | 90.26 |
| 86 | Osceola County | 90.26 |
| 87 | Polk County | 90.24 |
| 88 | Tama County | 89.47 |
| 89 | Wapello County | 87.78 |
| 90 | Sioux County | 86.30 |
| 91 | Clarke County | 84.26 |
| 92 | Louisa County | 84.06 |
| 93 | Franklin County | 83.69 |
| 94 | Woodbury County | 82.31 |
| 95 | Muscatine County | 82.03 |
| 96 | Wright County | 81.50 |
| 97 | Marshall County | 77.21 |
| 98 | Buena Vista County | 71.55 |
| 99 | Crawford County | 70.28 |