Ranking of Iowa Counties By Percentage of Non-Hispanic White Alone Population Aged 25 years and above with an Educational attainment of Less than High School Diploma in 2021 (ACS-5Yrs)
Based on the US Census ACS-5Yrs estimates, in 2021, the percentage of the Iowa Non-Hispanic White Alone population (aged 25 years and above) who had an educational attainment of Less than High School Diploma was 5.12%. Among all Iowa counties, Davis County had the highest percentage of its Non-Hispanic White Alone population (aged 25 years and above) with an educational attainment of Less than High School Diploma (21.06%), followed by Van Buren County (12.24%), and Wayne County (10.46%).
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 | Davis County | 21.06 |
| 2 | Van Buren County | 12.24 |
| 3 | Wayne County | 10.46 |
| 4 | Clarke County | 10.42 |
| 5 | Decatur County | 9.99 |
| 6 | Louisa County | 9.08 |
| 7 | Pocahontas County | 8.99 |
| 8 | Appanoose County | 8.98 |
| 9 | Cass County | 8.95 |
| 10 | Clayton County | 8.67 |
| 11 | Pottawattamie County | 8.49 |
| 12 | O'Brien County | 8.22 |
| 13 | Howard County | 8.21 |
| 14 | Montgomery County | 8.06 |
| 15 | Audubon County | 7.95 |
| 16 | Allamakee County | 7.89 |
| 16 | Union County | 7.89 |
| 17 | Wapello County | 7.77 |
| 18 | Harrison County | 7.73 |
| 19 | Hancock County | 7.60 |
| 20 | Jefferson County | 7.55 |
| 21 | Muscatine County | 7.43 |
| 22 | Webster County | 7.31 |
| 23 | Mahaska County | 7.28 |
| 24 | Delaware County | 7.22 |
| 25 | Osceola County | 7.21 |
| 26 | Page County | 7.08 |
| 27 | Fayette County | 7.03 |
| 28 | Mitchell County | 6.99 |
| 29 | Henry County | 6.92 |
| 30 | Emmet County | 6.87 |
| 31 | Lucas County | 6.84 |
| 32 | Monona County | 6.82 |
| 33 | Ringgold County | 6.78 |
| 34 | Ida County | 6.72 |
| 35 | Worth County | 6.71 |
| 36 | Jackson County | 6.66 |
| 37 | Monroe County | 6.63 |
| 38 | Clinton County | 6.62 |
| 39 | Tama County | 6.61 |
| 40 | Keokuk County | 6.52 |
| 41 | Taylor County | 6.49 |
| 42 | Des Moines County | 6.26 |
| 43 | Crawford County | 6.19 |
| 43 | Floyd County | 6.19 |
| 43 | Washington County | 6.19 |
| 44 | Shelby County | 6.07 |
| 45 | Chickasaw County | 6.01 |
| 46 | Lee County | 5.91 |
| 47 | Hardin County | 5.90 |
| 48 | Buchanan County | 5.87 |
| 49 | Sac County | 5.86 |
| 50 | Black Hawk County | 5.83 |
| 50 | Palo Alto County | 5.83 |
| 51 | Marion County | 5.81 |
| 52 | Butler County | 5.64 |
| 53 | Adams County | 5.63 |
| 53 | Wright County | 5.63 |
| 54 | Greene County | 5.62 |
| 55 | Benton County | 5.61 |
| 56 | Dubuque County | 5.55 |
| 57 | Boone County | 5.52 |
| 58 | Kossuth County | 5.48 |
| 59 | Lyon County | 5.47 |
| 59 | Marshall County | 5.47 |
| 60 | Buena Vista County | 5.38 |
| 60 | Poweshiek County | 5.38 |
| 61 | Calhoun County | 5.25 |
| 62 | Cherokee County | 5.09 |
| 63 | Carroll County | 5.03 |
| 64 | Cerro Gordo County | 5.02 |
| 65 | Iowa County | 4.94 |
| 66 | Guthrie County | 4.90 |
| 67 | Fremont County | 4.74 |
| 67 | Woodbury County | 4.74 |
| 68 | Sioux County | 4.73 |
| 69 | Jasper County | 4.70 |
| 70 | Adair County | 4.62 |
| 70 | Hamilton County | 4.62 |
| 71 | Humboldt County | 4.52 |
| 72 | Clay County | 4.48 |
| 73 | Jones County | 4.42 |
| 74 | Mills County | 4.37 |
| 75 | Scott County | 4.31 |
| 76 | Winnebago County | 4.21 |
| 77 | Franklin County | 4.18 |
| 78 | Cedar County | 4.15 |
| 79 | Grundy County | 4.06 |
| 80 | Winneshiek County | 3.88 |
| 81 | Linn County | 3.85 |
| 82 | Plymouth County | 3.75 |
| 83 | Warren County | 3.62 |
| 84 | Polk County | 3.49 |
| 85 | Bremer County | 3.31 |
| 86 | Dickinson County | 3.24 |
| 87 | Madison County | 2.74 |
| 88 | Story County | 2.62 |
| 89 | Dallas County | 2.19 |
| 90 | Johnson County | 2.13 |
