Ranking of Iowa Counties By Black or African American Alone Population Aged 25 years and above with an Educational attainment of Bachelors or Higher in 2021 (ACS-5Yrs)
Updated on September 5, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, the Iowa Black or African American Alone population (aged 25 years and above) who had an educational attainment of Bachelors or Higher was 11,757. Among all Iowa counties, Polk County had the highest Black or African American Alone population (aged 25 years and above) with an educational attainment of Bachelors or Higher (3,831), followed by Johnson County (1,418), and Linn County (1,300).
The chart below shows the top 10 Iowa counties, and the table below shows the ranking of all Iowa counties.
You can see similar information for other educational attainments, and for other races and ethnicities.
You can also see similar information for other states and for the United States.
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Related Topics: Iowa ACS-5Yrs Estimates, 2021 Topic List.
Data Source: US Census - ACS 5-Year Estimates.
Ranking of Iowa Counties By Black or African American Alone Population (Aged 25yrs+) with an Educational Attainment of Bachelors or Higher in 2021
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| Rank | County | Number of People |
|---|---|---|
| 1 | Polk County | 3831 |
| 2 | Johnson County | 1418 |
| 3 | Linn County | 1300 |
| 4 | Black Hawk County | 1181 |
| 5 | Scott County | 1135 |
| 6 | Story County | 424 |
| 7 | Woodbury County | 399 |
| 8 | Dallas County | 376 |
| 9 | Dubuque County | 269 |
| 10 | Jefferson County | 250 |
| 11 | Webster County | 151 |
| 12 | Wapello County | 139 |
| 13 | Muscatine County | 74 |
| 14 | Clinton County | 68 |
| 15 | Lee County | 58 |
| 16 | Jones County | 53 |
| 17 | Decatur County | 40 |
| 17 | Winneshiek County | 40 |
| 18 | Pottawattamie County | 38 |
| 19 | O'Brien County | 36 |
| 20 | Madison County | 33 |
| 21 | Marion County | 32 |
| 21 | Mitchell County | 32 |
| 21 | Warren County | 32 |
| 22 | Boone County | 29 |
| 22 | Des Moines County | 29 |
| 23 | Poweshiek County | 28 |
| 24 | Fayette County | 27 |
| 25 | Sioux County | 22 |
| 26 | Cerro Gordo County | 20 |
| 27 | Emmet County | 19 |
| 27 | Marshall County | 19 |
| 28 | Appanoose County | 17 |
| 28 | Buena Vista County | 17 |
| 29 | Henry County | 16 |
| 30 | Allamakee County | 11 |
| 30 | Mahaska County | 11 |
| 31 | Kossuth County | 10 |
| 32 | Bremer County | 9 |
| 33 | Benton County | 8 |
| 34 | Jasper County | 7 |
| 35 | Fremont County | 6 |
| 36 | Montgomery County | 5 |
| 36 | Van Buren County | 5 |
| 37 | Cherokee County | 4 |
| 37 | Dickinson County | 4 |
| 37 | Keokuk County | 4 |
| 37 | Lyon County | 4 |
| 37 | Plymouth County | 4 |
| 37 | Winnebago County | 4 |
| 38 | Grundy County | 3 |
| 39 | Butler County | 2 |
| 39 | Humboldt County | 2 |
| 40 | Hamilton County | 1 |
| 40 | Wayne County | 1 |
| 41 | Adair County | 0 |
| 41 | Adams County | 0 |
| 41 | Audubon County | 0 |
| 41 | Buchanan County | 0 |
| 41 | Calhoun County | 0 |
| 41 | Carroll County | 0 |
| 41 | Cass County | 0 |
| 41 | Cedar County | 0 |
| 41 | Chickasaw County | 0 |
| 41 | Clarke County | 0 |
| 41 | Clay County | 0 |
| 41 | Clayton County | 0 |
| 41 | Crawford County | 0 |
| 41 | Delaware County | 0 |
| 41 | Floyd County | 0 |
| 41 | Franklin County | 0 |
| 41 | Greene County | 0 |
| 41 | Guthrie County | 0 |
| 41 | Hancock County | 0 |
| 41 | Hardin County | 0 |
| 41 | Harrison County | 0 |
| 41 | Howard County | 0 |
| 41 | Ida County | 0 |
| 41 | Iowa County | 0 |
| 41 | Jackson County | 0 |
| 41 | Louisa County | 0 |
| 41 | Lucas County | 0 |
| 41 | Mills County | 0 |
| 41 | Monona County | 0 |
| 41 | Monroe County | 0 |
| 41 | Osceola County | 0 |
| 41 | Page County | 0 |
| 41 | Palo Alto County | 0 |
| 41 | Pocahontas County | 0 |
| 41 | Sac County | 0 |
| 41 | Shelby County | 0 |
| 41 | Tama County | 0 |
| 41 | Union County | 0 |
| 41 | Washington County | 0 |
| 41 | Worth County | 0 |
| 41 | Wright County | 0 |