Ranking of Iowa Counties By White Alone Population Aged 25 years and above with an Educational attainment of Some College or Associates Degree in 2021 (ACS-5Yrs)
Updated on September 5, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, the Iowa White Alone population (aged 25 years and above) who had an educational attainment of Some College or Associates Degree was 633,534. Among all Iowa counties, Polk County had the highest White Alone population (aged 25 years and above) with an educational attainment of Some College or Associates Degree (83,354), followed by Linn County (48,647), and Scott County (33,500).
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 White Alone Population (Aged 25yrs+) with an Educational Attainment of Some College or Associates Degree in 2021
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| Rank | County | Number of People |
|---|---|---|
| 1 | Polk County | 83354 |
| 2 | Linn County | 48647 |
| 3 | Scott County | 33500 |
| 4 | Black Hawk County | 23666 |
| 5 | Pottawattamie County | 20621 |
| 6 | Johnson County | 19804 |
| 7 | Woodbury County | 19060 |
| 8 | Dubuque County | 17855 |
| 9 | Dallas County | 15197 |
| 10 | Story County | 13952 |
| 11 | Warren County | 11107 |
| 12 | Cerro Gordo County | 10415 |
| 13 | Clinton County | 10188 |
| 14 | Des Moines County | 9573 |
| 15 | Jasper County | 8936 |
| 16 | Webster County | 8410 |
| 17 | Lee County | 8352 |
| 18 | Muscatine County | 8347 |
| 19 | Marshall County | 7246 |
| 20 | Wapello County | 7025 |
| 21 | Boone County | 6717 |
| 22 | Sioux County | 6518 |
| 23 | Marion County | 6269 |
| 24 | Benton County | 6190 |
| 25 | Plymouth County | 5759 |
| 26 | Carroll County | 5125 |
| 27 | Bremer County | 5088 |
| 28 | Jones County | 4999 |
| 29 | Buchanan County | 4995 |
| 30 | Dickinson County | 4712 |
| 31 | Washington County | 4558 |
| 32 | Cedar County | 4522 |
| 33 | Henry County | 4509 |
| 34 | Mahaska County | 4495 |
| 35 | Hardin County | 4358 |
| 36 | Jackson County | 4339 |
| 37 | Fayette County | 4239 |
| 38 | Madison County | 4211 |
| 39 | Clay County | 4131 |
| 40 | Winneshiek County | 4084 |
| 41 | Kossuth County | 4020 |
| 42 | Iowa County | 3895 |
| 43 | Page County | 3800 |
| 44 | Butler County | 3799 |
| 45 | Hamilton County | 3635 |
| 46 | Clayton County | 3585 |
| 47 | Delaware County | 3563 |
| 48 | Tama County | 3499 |
| 49 | Floyd County | 3470 |
| 50 | Mills County | 3466 |
| 51 | Harrison County | 3335 |
| 52 | Cass County | 3148 |
| 53 | Appanoose County | 3063 |
| 54 | Allamakee County | 3054 |
| 55 | Grundy County | 3041 |
| 56 | Poweshiek County | 3011 |
| 57 | O'Brien County | 3007 |
| 58 | Wright County | 2986 |
| 59 | Jefferson County | 2959 |
| 60 | Buena Vista County | 2906 |
| 61 | Shelby County | 2871 |
| 62 | Union County | 2869 |
| 63 | Crawford County | 2863 |
| 64 | Guthrie County | 2821 |
| 65 | Montgomery County | 2661 |
| 66 | Sac County | 2644 |
| 67 | Winnebago County | 2625 |
| 68 | Mitchell County | 2583 |
| 69 | Hancock County | 2577 |
| 70 | Lyon County | 2549 |
| 71 | Franklin County | 2444 |
| 72 | Humboldt County | 2434 |
| 73 | Cherokee County | 2432 |
| 74 | Chickasaw County | 2418 |
| 75 | Palo Alto County | 2403 |
| 76 | Emmet County | 2393 |
| 77 | Calhoun County | 2349 |
| 78 | Monona County | 2307 |
| 79 | Keokuk County | 2295 |
| 80 | Louisa County | 2200 |
| 81 | Greene County | 2082 |
| 82 | Howard County | 2079 |
| 83 | Lucas County | 2061 |
| 84 | Worth County | 1950 |
| 85 | Adair County | 1806 |
| 86 | Fremont County | 1802 |
| 87 | Pocahontas County | 1730 |
| 88 | Davis County | 1709 |
| 89 | Clarke County | 1676 |
| 90 | Monroe County | 1660 |
| 91 | Van Buren County | 1646 |
| 92 | Ida County | 1551 |
| 93 | Taylor County | 1418 |
| 94 | Osceola County | 1380 |
| 95 | Audubon County | 1375 |
| 96 | Wayne County | 1352 |
| 97 | Decatur County | 1186 |
| 98 | Ringgold County | 1062 |
| 99 | Adams County | 956 |
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