Ranking of Iowa Counties By White 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 White Alone population (aged 25 years and above) who had an educational attainment of Bachelors or Higher was 577,925. Among all Iowa counties, Polk County had the highest White Alone population (aged 25 years and above) with an educational attainment of Bachelors or Higher (111,295), followed by Linn County (48,600), and Johnson County (41,690).
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 Bachelors or Higher in 2021
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| Rank | County | Number of People |
|---|---|---|
| 1 | Polk County | 111295 |
| 2 | Linn County | 48600 |
| 3 | Johnson County | 41690 |
| 4 | Scott County | 35565 |
| 5 | Dallas County | 28124 |
| 6 | Story County | 22450 |
| 7 | Black Hawk County | 22108 |
| 8 | Dubuque County | 20097 |
| 9 | Woodbury County | 14424 |
| 10 | Pottawattamie County | 13679 |
| 11 | Warren County | 10764 |
| 12 | Cerro Gordo County | 7094 |
| 13 | Clinton County | 6563 |
| 14 | Marion County | 6426 |
| 15 | Sioux County | 6419 |
| 16 | Muscatine County | 6040 |
| 17 | Des Moines County | 5698 |
| 18 | Bremer County | 5322 |
| 19 | Jasper County | 4995 |
| 20 | Boone County | 4747 |
| 21 | Marshall County | 4742 |
| 22 | Webster County | 4564 |
| 23 | Lee County | 4471 |
| 24 | Wapello County | 4088 |
| 25 | Dickinson County | 4046 |
| 26 | Plymouth County | 3938 |
| 27 | Winneshiek County | 3931 |
| 28 | Benton County | 3751 |
| 29 | Jefferson County | 3497 |
| 30 | Poweshiek County | 3484 |
| 31 | Washington County | 3433 |
| 32 | Jones County | 3018 |
| 33 | Mahaska County | 2956 |
| 34 | Carroll County | 2920 |
| 35 | Buchanan County | 2897 |
| 36 | Henry County | 2885 |
| 37 | Mills County | 2852 |
| 38 | Cedar County | 2779 |
| 39 | Madison County | 2638 |
| 40 | Clay County | 2627 |
| 41 | Buena Vista County | 2594 |
| 42 | Iowa County | 2591 |
| 43 | Jackson County | 2546 |
| 44 | Hamilton County | 2483 |
| 45 | Hardin County | 2355 |
| 46 | Fayette County | 2299 |
| 47 | Delaware County | 2218 |
| 48 | Grundy County | 2183 |
| 49 | Clayton County | 2100 |
| 50 | Floyd County | 2050 |
| 51 | O'Brien County | 1996 |
| 52 | Cass County | 1928 |
| 53 | Harrison County | 1912 |
| 53 | Kossuth County | 1912 |
| 54 | Page County | 1876 |
| 55 | Butler County | 1836 |
| 56 | Shelby County | 1818 |
| 57 | Union County | 1758 |
| 58 | Tama County | 1757 |
| 59 | Cherokee County | 1742 |
| 60 | Crawford County | 1728 |
| 61 | Winnebago County | 1690 |
| 62 | Wright County | 1617 |
| 63 | Allamakee County | 1604 |
| 64 | Appanoose County | 1601 |
| 65 | Hancock County | 1540 |
| 66 | Guthrie County | 1515 |
| 67 | Chickasaw County | 1478 |
| 68 | Lyon County | 1475 |
| 69 | Mitchell County | 1473 |
| 70 | Calhoun County | 1436 |
| 71 | Palo Alto County | 1423 |
| 72 | Montgomery County | 1282 |
| 73 | Franklin County | 1250 |
| 74 | Greene County | 1230 |
| 74 | Sac County | 1230 |
| 75 | Humboldt County | 1162 |
| 76 | Howard County | 1144 |
| 77 | Keokuk County | 1141 |
| 78 | Decatur County | 1126 |
| 79 | Emmet County | 1051 |
| 80 | Worth County | 1031 |
| 81 | Louisa County | 1023 |
| 82 | Adair County | 1015 |
| 83 | Davis County | 1011 |
| 84 | Monroe County | 976 |
| 85 | Clarke County | 920 |
| 86 | Monona County | 907 |
| 87 | Ida County | 892 |
| 88 | Lucas County | 885 |
| 89 | Audubon County | 847 |
| 90 | Pocahontas County | 844 |
| 91 | Fremont County | 830 |
| 92 | Van Buren County | 768 |
| 93 | Osceola County | 716 |
| 94 | Ringgold County | 655 |
| 95 | Taylor County | 648 |
| 96 | Wayne County | 646 |
| 97 | Adams County | 544 |