# Counties in Iowa by high school graduate or higher, population 25 and over, 2024

All 99 values come from U.S. Census Bureau for 2024, so the places are comparable.

- Indicator id: `high_school_graduate_share`
- Unit: %
- Definition: People aged 25 and over who hold a regular high school diploma, a GED or alternative credential, or any higher level of education, as a percentage of all people aged 25 and over. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.
- Source: U.S. Census Bureau, American Community Survey 5-year estimates, table B15003: population 25 years and over with a high school diploma, GED or higher as a percentage of the population 25 years and over, calculated with stored inputs (https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b15003.dat)
- Retrieved: 2026-10-12
- Citation: U.S. Census Bureau. American Community Survey 5-year estimates, table B15003: population 25 years and over with a high school diploma, GED or higher as a percentage of the population 25 years and over, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b15003.dat. Retrieved 2026-10-12.
- Web page: https://invokely.ai/rankings/high-school-graduate-or-higher/iowa-counties

| Rank | Place | % |
|---:|---|---:|
| 1 | Story County | 97.4 |
| 2 | Dickinson County | 96.9 |
| 3 | Grundy County | 96.9 |
| 4 | Warren County | 96.7 |
| 5 | Madison County | 96.6 |
| 6 | Mills County | 96.6 |
| 7 | Johnson County | 96.3 |
| 8 | Winneshiek County | 96.2 |
| 9 | Bremer County | 96.2 |
| 10 | Guthrie County | 95.9 |
| 11 | Cedar County | 95.7 |
| 12 | Iowa County | 95.5 |
| 13 | Monroe County | 95.4 |
| 14 | Dallas County | 95.4 |
| 15 | Shelby County | 95.4 |
| 16 | Lyon County | 95.3 |
| 17 | Benton County | 95.2 |
| 18 | Carroll County | 95.2 |
| 19 | Jones County | 95.2 |
| 20 | Linn County | 95.2 |
| 21 | Kossuth County | 95.1 |
| 22 | Boone County | 95.1 |
| 22 | Jefferson County | 95.1 |
| 24 | Floyd County | 95 |
| 25 | Adair County | 94.9 |
| 26 | Poweshiek County | 94.9 |
| 27 | Marion County | 94.8 |
| 28 | Cerro Gordo County | 94.8 |
| 28 | Plymouth County | 94.8 |
| 30 | Winnebago County | 94.7 |
| 31 | Cass County | 94.5 |
| 32 | Ida County | 94.5 |
| 33 | Keokuk County | 94.4 |
| 34 | Hamilton County | 94.4 |
| 35 | Jackson County | 94.2 |
| 36 | Scott County | 94.1 |
| 37 | Buchanan County | 94.1 |
| 38 | Jasper County | 94 |
| 39 | Ringgold County | 94 |
| 40 | Butler County | 93.9 |
| 41 | Adams County | 93.9 |
| 42 | Dubuque County | 93.9 |
| 43 | Harrison County | 93.9 |
| 44 | Des Moines County | 93.8 |
| 45 | Delaware County | 93.7 |
| 46 | Chickasaw County | 93.7 |
| 47 | Worth County | 93.6 |
| 48 | Greene County | 93.6 |
| 49 | Washington County | 93.5 |
| 50 | Mahaska County | 93.5 |
| 51 | Page County | 93.4 |
| 52 | Palo Alto County | 93.3 |
| 53 | Clay County | 93.3 |
| 54 | Clinton County | 93.3 |
| 55 | Humboldt County | 93.2 |
| 56 | Cherokee County | 93.2 |
| 57 | Fayette County | 93.1 |
| 58 | Fremont County | 93.1 |
| 59 | Mitchell County | 93.1 |
| 60 | Hardin County | 93.1 |
| 61 | Webster County | 93 |
| 62 | Calhoun County | 92.9 |
| 63 | Black Hawk County | 92.9 |
| 64 | Sac County | 92.8 |
| 65 | Taylor County | 92.6 |
| 66 | Allamakee County | 92.6 |
| 66 | Clayton County | 92.6 |
| 68 | Monona County | 92.5 |
| 69 | Howard County | 92.5 |
| 70 | Lee County | 92.5 |
| 71 | Polk County | 92.5 |
| 72 | Audubon County | 92.3 |
| 73 | Lucas County | 91.8 |
| 74 | Montgomery County | 91.7 |
| 75 | Henry County | 91.7 |
| 76 | Wright County | 91.7 |
| 77 | Tama County | 91.5 |
| 78 | Union County | 91.5 |
| 79 | Hancock County | 91.4 |
| 80 | Wayne County | 90.9 |
| 81 | Sioux County | 90.9 |
| 82 | Pottawattamie County | 90.7 |
| 83 | Pocahontas County | 90.6 |
| 84 | Franklin County | 90.5 |
| 85 | O'Brien County | 90.5 |
| 86 | Emmet County | 90.1 |
| 87 | Appanoose County | 89.8 |
| 87 | Decatur County | 89.8 |
| 89 | Muscatine County | 89.7 |
| 90 | Clarke County | 89.3 |
| 91 | Wapello County | 88.6 |
| 92 | Woodbury County | 87.6 |
| 93 | Osceola County | 87.4 |
| 94 | Marshall County | 86.9 |
| 95 | Louisa County | 85.7 |
| 95 | Van Buren County | 85.7 |
| 97 | Crawford County | 83.6 |
| 98 | Buena Vista County | 81.3 |
| 99 | Davis County | 80.9 |