Ranking of Iowa Counties By Some Other Race Alone Population Aged 25 years and above with an Educational attainment of Less than High School Diploma in 2021 (ACS-5Yrs)
Updated on September 5, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, the Iowa Some Other Race Alone population (aged 25 years and above) who had an educational attainment of Less than High School Diploma was 9,976. Among all Iowa counties, Polk County had the highest Some Other Race Alone population (aged 25 years and above) with an educational attainment of Less than High School Diploma (1,854), followed by Woodbury County (936), and Marshall County (814).
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 Some Other Race Alone Population (Aged 25yrs+) with an Educational Attainment of Less than High School Diploma in 2021
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| Rank | County | Number of People |
|---|---|---|
| 1 | Polk County | 1854 |
| 2 | Woodbury County | 936 |
| 3 | Marshall County | 814 |
| 4 | Johnson County | 598 |
| 5 | Crawford County | 556 |
| 6 | Buena Vista County | 499 |
| 7 | Muscatine County | 413 |
| 8 | Pottawattamie County | 380 |
| 9 | Wapello County | 343 |
| 10 | Linn County | 306 |
| 11 | Black Hawk County | 302 |
| 12 | Sioux County | 295 |
| 13 | Dallas County | 261 |
| 14 | Scott County | 248 |
| 15 | Dubuque County | 225 |
| 16 | Louisa County | 214 |
| 17 | Washington County | 124 |
| 18 | Plymouth County | 114 |
| 19 | Story County | 84 |
| 20 | Cass County | 81 |
| 21 | Union County | 72 |
| 22 | Emmet County | 67 |
| 22 | Warren County | 67 |
| 23 | Clarke County | 60 |
| 24 | Shelby County | 55 |
| 25 | Henry County | 49 |
| 26 | Lee County | 47 |
| 27 | Chickasaw County | 42 |
| 28 | Webster County | 37 |
| 29 | Taylor County | 36 |
| 30 | Carroll County | 35 |
| 30 | O'Brien County | 35 |
| 31 | Calhoun County | 34 |
| 31 | Clinton County | 34 |
| 31 | Jasper County | 34 |
| 31 | Jones County | 34 |
| 31 | Lyon County | 34 |
| 32 | Keokuk County | 31 |
| 33 | Poweshiek County | 30 |
| 34 | Mills County | 28 |
| 35 | Benton County | 26 |
| 36 | Osceola County | 25 |
| 37 | Tama County | 24 |
| 38 | Worth County | 23 |
| 39 | Hancock County | 22 |
| 40 | Fremont County | 21 |
| 41 | Clayton County | 20 |
| 42 | Cerro Gordo County | 19 |
| 42 | Iowa County | 19 |
| 43 | Greene County | 18 |
| 43 | Harrison County | 18 |
| 44 | Ida County | 17 |
| 44 | Wright County | 17 |
| 45 | Pocahontas County | 16 |
| 46 | Winneshiek County | 14 |
| 47 | Bremer County | 13 |
| 47 | Clay County | 13 |
| 47 | Dickinson County | 13 |
| 47 | Hardin County | 13 |
| 47 | Van Buren County | 13 |
| 48 | Franklin County | 12 |
| 49 | Guthrie County | 11 |
| 50 | Delaware County | 10 |
| 50 | Sac County | 10 |
| 51 | Floyd County | 9 |
| 52 | Howard County | 7 |
| 52 | Kossuth County | 7 |
| 52 | Winnebago County | 7 |
| 53 | Humboldt County | 6 |
| 54 | Page County | 4 |
| 55 | Buchanan County | 3 |
| 55 | Decatur County | 3 |
| 55 | Grundy County | 3 |
| 55 | Marion County | 3 |
| 55 | Monona County | 3 |
| 56 | Audubon County | 2 |
| 56 | Ringgold County | 2 |
| 57 | Allamakee County | 1 |
| 57 | Mahaska County | 1 |
| 58 | Adair County | 0 |
| 58 | Adams County | 0 |
| 58 | Appanoose County | 0 |
| 58 | Boone County | 0 |
| 58 | Butler County | 0 |
| 58 | Cedar County | 0 |
| 58 | Cherokee County | 0 |
| 58 | Davis County | 0 |
| 58 | Des Moines County | 0 |
| 58 | Fayette County | 0 |
| 58 | Hamilton County | 0 |
| 58 | Jackson County | 0 |
| 58 | Jefferson County | 0 |
| 58 | Lucas County | 0 |
| 58 | Madison County | 0 |
| 58 | Mitchell County | 0 |
| 58 | Montgomery County | 0 |
| 58 | Palo Alto County | 0 |
| 58 | Wayne County | 0 |