Ranking of Iowa Counties By Black or African American Alone Population in 2015
Updated on June 18, 2025.
Based on the US Census Vintage data estimates, in 2015, among all Iowa counties, Polk County had the highest number of people who identified their race as Black or African American Alone (31.68K), followed by Scott County (13.12K), and Black Hawk County (12.42K).
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 Black or African American Alone Population in 2015
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| Rank | County | Black or African American Alone Population |
|---|---|---|
| 1 | Polk County | 31678 |
| 2 | Scott County | 13119 |
| 3 | Black Hawk County | 12415 |
| 4 | Linn County | 10830 |
| 5 | Johnson County | 9628 |
| 6 | Woodbury County | 3226 |
| 7 | Dubuque County | 3073 |
| 8 | Story County | 2669 |
| 9 | Des Moines County | 2347 |
| 10 | Webster County | 1602 |
| 11 | Pottawattamie County | 1573 |
| 12 | Dallas County | 1507 |
| 13 | Clinton County | 1407 |
| 14 | Wapello County | 1110 |
| 15 | Muscatine County | 1109 |
| 16 | Lee County | 1041 |
| 17 | Marshall County | 787 |
| 18 | Jasper County | 683 |
| 19 | Cerro Gordo County | 628 |
| 20 | Buena Vista County | 620 |
| 21 | Henry County | 497 |
| 21 | Jones County | 497 |
| 22 | Crawford County | 483 |
| 23 | Jefferson County | 396 |
| 24 | Page County | 387 |
| 25 | Floyd County | 376 |
| 26 | Warren County | 365 |
| 27 | Mahaska County | 335 |
| 28 | Boone County | 298 |
| 29 | Poweshiek County | 279 |
| 30 | Marion County | 274 |
| 31 | Sioux County | 254 |
| 32 | Bremer County | 252 |
| 33 | Fayette County | 249 |
| 34 | Hardin County | 247 |
| 35 | Washington County | 206 |
| 36 | Allamakee County | 204 |
| 37 | Calhoun County | 196 |
| 38 | Carroll County | 194 |
| 39 | Plymouth County | 172 |
| 40 | Winneshiek County | 171 |
| 41 | Winnebago County | 162 |
| 42 | Hamilton County | 148 |
| 43 | Decatur County | 145 |
| 44 | Clayton County | 144 |
| 45 | Union County | 142 |
| 46 | Benton County | 132 |
| 46 | Jackson County | 132 |
| 47 | O'Brien County | 126 |
| 48 | Clay County | 123 |
| 49 | Palo Alto County | 118 |
| 50 | Louisa County | 111 |
| 51 | Kossuth County | 108 |
| 52 | Cherokee County | 106 |
| 53 | Buchanan County | 102 |
| 54 | Shelby County | 99 |
| 55 | Wright County | 98 |
| 56 | Hancock County | 96 |
| 57 | Franklin County | 92 |
| 58 | Clarke County | 90 |
| 58 | Iowa County | 90 |
| 59 | Mills County | 89 |
| 60 | Emmet County | 88 |
| 61 | Cedar County | 81 |
| 61 | Madison County | 81 |
| 62 | Tama County | 80 |
| 63 | Appanoose County | 78 |
| 63 | Chickasaw County | 78 |
| 64 | Pocahontas County | 74 |
| 65 | Worth County | 73 |
| 66 | Monroe County | 72 |
| 67 | Delaware County | 66 |
| 68 | Dickinson County | 62 |
| 69 | Humboldt County | 55 |
| 69 | Keokuk County | 55 |
| 69 | Mitchell County | 55 |
| 70 | Montgomery County | 50 |
| 71 | Grundy County | 46 |
| 71 | Howard County | 46 |
| 72 | Harrison County | 45 |
| 73 | Fremont County | 44 |
| 74 | Butler County | 43 |
| 75 | Cass County | 42 |
| 75 | Greene County | 42 |
| 76 | Guthrie County | 41 |
| 77 | Lyon County | 38 |
| 78 | Monona County | 36 |
| 78 | Osceola County | 36 |
| 79 | Taylor County | 33 |
| 80 | Lucas County | 28 |
| 80 | Wayne County | 28 |
| 81 | Audubon County | 27 |
| 81 | Ida County | 27 |
| 81 | Sac County | 27 |
| 82 | Adair County | 25 |
| 82 | Ringgold County | 25 |
| 83 | Davis County | 18 |
| 84 | Van Buren County | 17 |
| 85 | Adams County | 10 |
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