Ranking of Iowa Counties By Non-Hispanic White 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 Iowa Non-Hispanic White Alone population (aged 25 years and above) who had an educational attainment of High School Graduate or Equivalent was 583,427. Among all Iowa counties, Polk County had the highest Non-Hispanic White Alone population (aged 25 years and above) with an educational attainment of High School Graduate or Equivalent (65,308), followed by Linn County (35,167), and Scott County (27,200).
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 | Number of People |
|---|---|---|
| 1 | Polk County | 65308 |
| 2 | Linn County | 35167 |
| 3 | Scott County | 27200 |
| 4 | Black Hawk County | 21184 |
| 5 | Dubuque County | 20503 |
| 6 | Pottawattamie County | 18852 |
| 7 | Woodbury County | 17286 |
| 8 | Clinton County | 11573 |
| 9 | Johnson County | 10811 |
| 10 | Dallas County | 10307 |
| 11 | Jasper County | 9904 |
| 12 | Cerro Gordo County | 9809 |
| 13 | Warren County | 9615 |
| 14 | Lee County | 8238 |
| 15 | Des Moines County | 8096 |
| 16 | Wapello County | 7965 |
| 17 | Webster County | 7962 |
| 18 | Story County | 7918 |
| 19 | Muscatine County | 7856 |
| 20 | Marshall County | 7613 |
| 21 | Marion County | 7152 |
| 22 | Benton County | 6360 |
| 23 | Boone County | 5844 |
| 24 | Plymouth County | 5793 |
| 25 | Jackson County | 5636 |
| 26 | Sioux County | 5552 |
| 27 | Mahaska County | 5454 |
| 28 | Fayette County | 5416 |
| 29 | Jones County | 5363 |
| 30 | Washington County | 5347 |
| 31 | Clayton County | 5227 |
| 32 | Delaware County | 5066 |
| 33 | Bremer County | 4865 |
| 34 | Cedar County | 4860 |
| 35 | Carroll County | 4703 |
| 36 | Buchanan County | 4671 |
| 37 | Poweshiek County | 4570 |
| 38 | Henry County | 4488 |
| 39 | Winneshiek County | 4380 |
| 40 | Hardin County | 4178 |
| 41 | Iowa County | 4130 |
| 42 | Page County | 4105 |
| 43 | Tama County | 4030 |
| 44 | Floyd County | 3898 |
| 45 | Harrison County | 3868 |
| 46 | Allamakee County | 3747 |
| 47 | Butler County | 3675 |
| 48 | Clay County | 3672 |
| 49 | Madison County | 3659 |
| 50 | Chickasaw County | 3634 |
| 51 | Kossuth County | 3525 |
| 52 | Dickinson County | 3399 |
| 53 | O'Brien County | 3397 |
| 54 | Hamilton County | 3250 |
| 55 | Cherokee County | 3244 |
| 56 | Cass County | 3094 |
| 57 | Mills County | 3066 |
| 58 | Crawford County | 3040 |
| 59 | Lyon County | 2996 |
| 60 | Wright County | 2971 |
| 61 | Appanoose County | 2967 |
| 62 | Keokuk County | 2966 |
| 63 | Buena Vista County | 2810 |
| 64 | Grundy County | 2794 |
| 65 | Shelby County | 2760 |
| 66 | Union County | 2687 |
| 67 | Hancock County | 2643 |
| 68 | Jefferson County | 2623 |
| 69 | Calhoun County | 2576 |
| 70 | Guthrie County | 2564 |
| 71 | Clarke County | 2521 |
| 72 | Louisa County | 2503 |
| 73 | Howard County | 2496 |
| 74 | Lucas County | 2477 |
| 75 | Mitchell County | 2470 |
| 76 | Sac County | 2457 |
| 77 | Humboldt County | 2441 |
| 78 | Monona County | 2348 |
| 79 | Franklin County | 2316 |
| 80 | Montgomery County | 2301 |
| 81 | Winnebago County | 2296 |
| 82 | Emmet County | 2260 |
| 83 | Greene County | 2252 |
| 84 | Adair County | 2090 |
| 85 | Monroe County | 2068 |
| 86 | Van Buren County | 1878 |
| 87 | Ida County | 1804 |
| 88 | Worth County | 1791 |
| 89 | Wayne County | 1767 |
| 90 | Pocahontas County | 1728 |
| 91 | Palo Alto County | 1713 |
| 92 | Fremont County | 1704 |
| 93 | Decatur County | 1696 |
| 94 | Davis County | 1578 |
| 95 | Osceola County | 1558 |
| 96 | Taylor County | 1475 |
| 97 | Audubon County | 1425 |
| 98 | Ringgold County | 1217 |
| 99 | Adams County | 915 |
