Ranking of Iowa Counties By Non-Hispanic Black or African American Population in 2018
Updated on June 18, 2025.
Based on the US Census Vintage data estimates, in 2018, among all Iowa counties, Polk County had the highest number of people who identified their ethnicity as Non-Hispanic Black or African American (33.79K), followed by Linn County (13.28K), and Scott County (12.95K).
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.
You may also be interested in:
Related Topics: Iowa Census Vintage Data Topic List.
Data Source: US Census Bureau (Vintage).
See this for other years:
Ranking of Iowa Counties By Non-Hispanic Black or African American Population in 2018
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| Rank | County | Non-Hispanic Black or African American Population |
|---|---|---|
| 1 | Polk County | 33786 |
| 2 | Linn County | 13283 |
| 3 | Scott County | 12952 |
| 4 | Black Hawk County | 12564 |
| 5 | Johnson County | 11223 |
| 6 | Woodbury County | 3797 |
| 7 | Dubuque County | 3355 |
| 8 | Story County | 2650 |
| 9 | Des Moines County | 2338 |
| 10 | Dallas County | 2029 |
| 11 | Webster County | 1585 |
| 12 | Pottawattamie County | 1497 |
| 13 | Clinton County | 1294 |
| 14 | Wapello County | 1281 |
| 15 | Muscatine County | 1049 |
| 16 | Lee County | 1015 |
| 17 | Jasper County | 823 |
| 18 | Marshall County | 793 |
| 19 | Cerro Gordo County | 760 |
| 20 | Buena Vista County | 602 |
| 21 | Crawford County | 588 |
| 22 | Jones County | 517 |
| 23 | Henry County | 515 |
| 24 | Warren County | 431 |
| 25 | Mahaska County | 415 |
| 26 | Page County | 414 |
| 27 | Floyd County | 413 |
| 28 | Jefferson County | 405 |
| 29 | Bremer County | 304 |
| 30 | Boone County | 303 |
| 31 | Fayette County | 285 |
| 32 | Marion County | 280 |
| 33 | Poweshiek County | 263 |
| 34 | Hardin County | 258 |
| 35 | Allamakee County | 239 |
| 36 | Washington County | 230 |
| 37 | Carroll County | 226 |
| 38 | Calhoun County | 222 |
| 39 | Plymouth County | 213 |
| 40 | Sioux County | 192 |
| 41 | Union County | 162 |
| 42 | Winnebago County | 157 |
| 43 | Kossuth County | 156 |
| 44 | Winneshiek County | 151 |
| 45 | Delaware County | 149 |
| 46 | Palo Alto County | 148 |
| 47 | Benton County | 147 |
| 47 | Clayton County | 147 |
| 48 | Decatur County | 144 |
| 49 | Tama County | 134 |
| 50 | Hamilton County | 126 |
| 51 | O'Brien County | 125 |
| 52 | Clay County | 121 |
| 53 | Cherokee County | 120 |
| 54 | Emmet County | 115 |
| 55 | Jackson County | 114 |
| 56 | Cedar County | 113 |
| 57 | Louisa County | 109 |
| 58 | Buchanan County | 107 |
| 59 | Clarke County | 96 |
| 60 | Mills County | 95 |
| 61 | Iowa County | 90 |
| 62 | Hancock County | 87 |
| 62 | Madison County | 87 |
| 62 | Shelby County | 87 |
| 62 | Wright County | 87 |
| 63 | Appanoose County | 82 |
| 64 | Dickinson County | 77 |
| 65 | Chickasaw County | 70 |
| 66 | Franklin County | 68 |
| 67 | Mitchell County | 63 |
| 68 | Guthrie County | 58 |
| 68 | Humboldt County | 58 |
| 68 | Keokuk County | 58 |
| 69 | Harrison County | 57 |
| 70 | Worth County | 56 |
| 71 | Cass County | 55 |
| 71 | Pocahontas County | 55 |
| 72 | Grundy County | 53 |
| 72 | Monroe County | 53 |
| 73 | Howard County | 52 |
| 74 | Monona County | 49 |
| 75 | Montgomery County | 46 |
| 76 | Fremont County | 45 |
| 77 | Ringgold County | 39 |
| 78 | Butler County | 38 |
| 78 | Greene County | 38 |
| 78 | Lyon County | 38 |
| 79 | Adair County | 32 |
| 80 | Osceola County | 30 |
| 81 | Lucas County | 29 |
| 81 | Wayne County | 29 |
| 82 | Sac County | 28 |
| 83 | Ida County | 27 |
| 84 | Taylor County | 22 |
| 85 | Audubon County | 21 |
| 85 | Van Buren County | 21 |
| 86 | Davis County | 15 |
| 87 | Adams County | 12 |
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