Ranking of Iowa Counties By Percentage of Population that are White Alone in 2011
Updated on June 18, 2025.
Based on the US Census Vintage data estimates, in 2011, among all Iowa counties, Lyon County had the highest percentage of its population who identified their race as White Alone (98.95%), followed by Mitchell County (98.84%), and Adair County (98.81%).
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
White Alone in 2011
25
0 of 0
| Rank | County | % of County Population |
|---|---|---|
| 1 | Lyon County | 98.95 |
| 2 | Mitchell County | 98.84 |
| 3 | Adair County | 98.81 |
| 4 | Lucas County | 98.76 |
| 5 | Grundy County | 98.72 |
| 6 | Chickasaw County | 98.69 |
| 7 | Davis County | 98.64 |
| 8 | Ida County | 98.62 |
| 9 | Delaware County | 98.61 |
| 10 | Keokuk County | 98.59 |
| 11 | Audubon County | 98.5 |
| 12 | Dickinson County | 98.49 |
| 13 | Butler County | 98.46 |
| 14 | Sac County | 98.42 |
| 14 | Van Buren County | 98.42 |
| 15 | Harrison County | 98.4 |
| 16 | Guthrie County | 98.38 |
| 16 | Howard County | 98.38 |
| 16 | Ringgold County | 98.38 |
| 16 | Shelby County | 98.38 |
| 16 | Wayne County | 98.38 |
| 17 | Taylor County | 98.33 |
| 18 | Clayton County | 98.32 |
| 19 | Iowa County | 98.29 |
| 20 | Benton County | 98.28 |
| 21 | Montgomery County | 98.2 |
| 22 | Kossuth County | 98.18 |
| 23 | Adams County | 98.17 |
| 24 | Madison County | 98.15 |
| 25 | Buchanan County | 98.1 |
| 25 | Osceola County | 98.1 |
| 26 | Cass County | 98.07 |
| 26 | Cedar County | 98.07 |
| 27 | Fremont County | 98.05 |
| 28 | Humboldt County | 98.02 |
| 29 | Worth County | 98 |
| 30 | Greene County | 97.99 |
| 30 | Monroe County | 97.99 |
| 30 | Pocahontas County | 97.99 |
| 31 | Appanoose County | 97.9 |
| 32 | Carroll County | 97.85 |
| 32 | Hancock County | 97.85 |
| 33 | Clay County | 97.72 |
| 33 | Plymouth County | 97.72 |
| 34 | O'Brien County | 97.71 |
| 35 | Palo Alto County | 97.7 |
| 36 | Wright County | 97.68 |
| 37 | Mills County | 97.67 |
| 38 | Franklin County | 97.62 |
| 39 | Jackson County | 97.55 |
| 40 | Cherokee County | 97.5 |
| 41 | Boone County | 97.47 |
| 42 | Union County | 97.44 |
| 43 | Sioux County | 97.38 |
| 44 | Clarke County | 97.37 |
| 44 | Washington County | 97.37 |
| 45 | Warren County | 97.34 |
| 46 | Bremer County | 97.31 |
| 46 | Winneshiek County | 97.31 |
| 47 | Winnebago County | 97.17 |
| 48 | Fayette County | 97.16 |
| 49 | Allamakee County | 97.07 |
| 49 | Hardin County | 97.07 |
| 49 | Monona County | 97.07 |
| 50 | Jasper County | 97.01 |
| 51 | Calhoun County | 96.98 |
| 52 | Marion County | 96.9 |
| 53 | Jones County | 96.52 |
| 54 | Floyd County | 96.36 |
| 55 | Mahaska County | 96.23 |
| 56 | Cerro Gordo County | 96.02 |
| 57 | Hamilton County | 95.82 |
| 58 | Decatur County | 95.75 |
| 59 | Louisa County | 95.72 |
| 60 | Muscatine County | 95.66 |
| 60 | Pottawattamie County | 95.66 |
| 61 | Emmet County | 95.63 |
| 62 | Poweshiek County | 95.46 |
| 63 | Wapello County | 95.35 |
| 64 | Crawford County | 95.22 |
| 65 | Page County | 94.76 |
| 66 | Clinton County | 94.58 |
| 67 | Dubuque County | 94.44 |
| 68 | Lee County | 94.28 |
| 69 | Marshall County | 93.72 |
| 70 | Dallas County | 93.67 |
| 71 | Henry County | 93.3 |
| 72 | Webster County | 93.25 |
| 73 | Des Moines County | 91.38 |
| 74 | Linn County | 91.27 |
| 75 | Woodbury County | 89.47 |
| 76 | Tama County | 89.08 |
| 77 | Story County | 88.78 |
| 78 | Buena Vista County | 88.41 |
| 79 | Scott County | 87.52 |
| 80 | Jefferson County | 87.4 |
| 81 | Polk County | 87.38 |
| 82 | Black Hawk County | 86.96 |
| 83 | Johnson County | 86.76 |
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