Ranking of Iowa Counties By Percentage of Black or African American Alone Population Aged 25 years and above with an Educational attainment of High School Graduate or Equivalent in 2021 (ACS-5Yrs)
Based on the US Census ACS-5Yrs estimates, in 2021, the percentage of the Iowa Black or African American Alone population (aged 25 years and above) who had an educational attainment of High School Graduate or Equivalent was 32.95%. Among all Iowa counties, Adams County had the highest percentage of its Black or African American Alone population (aged 25 years and above) with an educational attainment of High School Graduate or Equivalent (100.00%), followed by Monona County (100.00%), and Monroe County (100.00%).
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.
| Rank | County | Percentage of Population (Aged 25yrs+) (%) |
|---|---|---|
| 1 | Adams County | 100.00 |
| 1 | Monona County | 100.00 |
| 1 | Monroe County | 100.00 |
| 1 | Worth County | 100.00 |
| 2 | Mills County | 97.73 |
| 3 | Jackson County | 97.62 |
| 4 | Audubon County | 93.33 |
| 5 | Clayton County | 91.30 |
| 6 | Floyd County | 90.55 |
| 7 | Lucas County | 86.96 |
| 8 | Howard County | 80.00 |
| 9 | Buchanan County | 77.63 |
| 10 | Louisa County | 68.12 |
| 11 | Boone County | 67.57 |
| 12 | Guthrie County | 66.67 |
| 13 | Lyon County | 63.64 |
| 14 | Tama County | 62.37 |
| 15 | Lee County | 62.36 |
| 16 | Hamilton County | 60.61 |
| 17 | Humboldt County | 57.90 |
| 18 | Fayette County | 57.27 |
| 19 | Allamakee County | 55.65 |
| 20 | Crawford County | 54.55 |
| 21 | Jones County | 54.03 |
| 22 | Jasper County | 53.88 |
| 23 | Muscatine County | 52.47 |
| 24 | Butler County | 50.00 |
| 25 | Buena Vista County | 49.52 |
| 26 | Mahaska County | 47.65 |
| 27 | Washington County | 47.31 |
| 28 | Page County | 46.71 |
| 29 | Cedar County | 46.15 |
| 30 | Henry County | 44.97 |
| 31 | Winnebago County | 43.59 |
| 32 | Marshall County | 42.37 |
| 33 | Marion County | 41.00 |
| 34 | Warren County | 40.68 |
| 35 | Woodbury County | 40.26 |
| 36 | Calhoun County | 40.00 |
| 37 | Greene County | 39.29 |
| 38 | Union County | 38.46 |
| 39 | Plymouth County | 36.63 |
| 40 | Sac County | 35.90 |
| 41 | Grundy County | 35.71 |
| 41 | Wayne County | 35.71 |
| 42 | Scott County | 34.95 |
| 43 | Pocahontas County | 34.78 |
| 44 | Clarke County | 33.33 |
| 45 | Polk County | 32.44 |
| 46 | Pottawattamie County | 32.38 |
| 47 | Black Hawk County | 31.71 |
| 48 | Linn County | 31.33 |
| 49 | Webster County | 30.45 |
| 50 | Kossuth County | 28.95 |
| 51 | Madison County | 28.85 |
| 52 | Clinton County | 27.71 |
| 53 | Johnson County | 27.02 |
| 54 | Des Moines County | 26.99 |
| 55 | Clay County | 26.67 |
| 56 | O'Brien County | 26.19 |
| 57 | Story County | 25.93 |
| 58 | Dubuque County | 25.27 |
| 59 | Harrison County | 25.00 |
| 60 | Benton County | 24.44 |
| 61 | Jefferson County | 22.75 |
| 62 | Dallas County | 22.68 |
| 63 | Iowa County | 21.43 |
| 64 | Cerro Gordo County | 21.10 |
| 65 | Fremont County | 18.75 |
| 66 | Chickasaw County | 17.54 |
| 67 | Sioux County | 15.56 |
| 68 | Dickinson County | 15.39 |
| 69 | Emmet County | 14.89 |
| 70 | Wapello County | 14.21 |
| 71 | Adair County | 13.95 |
| 72 | Keokuk County | 13.04 |
| 73 | Ida County | 11.11 |
| 74 | Cherokee County | 10.94 |
| 75 | Hardin County | 10.81 |
| 76 | Palo Alto County | 10.28 |
| 77 | Van Buren County | 10.00 |
| 78 | Poweshiek County | 9.57 |
| 79 | Winneshiek County | 8.16 |
| 80 | Bremer County | 7.04 |
| 81 | Cass County | 6.38 |
| 82 | Hancock County | 5.56 |
| 83 | Shelby County | 3.20 |
| 84 | Appanoose County | 0.00 |
| 84 | Carroll County | 0.00 |
| 84 | Decatur County | 0.00 |
| 84 | Delaware County | 0.00 |
| 84 | Franklin County | 0.00 |
| 84 | Mitchell County | 0.00 |
| 84 | Montgomery County | 0.00 |
| 84 | Osceola County | 0.00 |
| 84 | Wright County | 0.00 |
