# Counties in Iowa by graduate or professional degree, population 25 and over, 2024

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

- Indicator id: `graduate_degree_share`
- Unit: %
- Definition: People aged 25 and over whose highest degree is a master's, professional school or doctorate degree, 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 master's, professional school or doctorate degree 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 master's, professional school or doctorate degree 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/graduate-or-professional-degree/iowa-counties

| Rank | Place | % |
|---:|---|---:|
| 1 | Johnson County | 24.1 |
| 2 | Story County | 23.5 |
| 3 | Jefferson County | 18.8 |
| 4 | Dallas County | 17.7 |
| 5 | Scott County | 14 |
| 6 | Polk County | 13.1 |
| 7 | Bremer County | 12.1 |
| 8 | Dubuque County | 11.6 |
| 9 | Linn County | 11.4 |
| 10 | Poweshiek County | 11.3 |
| 11 | Decatur County | 11.2 |
| 12 | Black Hawk County | 11 |
| 13 | Winneshiek County | 10.3 |
| 14 | Warren County | 9.7 |
| 15 | Marion County | 9.7 |
| 16 | Mills County | 9.6 |
| 17 | Boone County | 9.5 |
| 18 | Washington County | 9 |
| 19 | Dickinson County | 8.6 |
| 20 | Woodbury County | 8.4 |
| 21 | Cherokee County | 8.3 |
| 21 | Shelby County | 8.3 |
| 23 | Sioux County | 8.3 |
| 24 | Benton County | 8.2 |
| 25 | Guthrie County | 8 |
| 26 | Cerro Gordo County | 7.9 |
| 27 | Pottawattamie County | 7.9 |
| 28 | Wapello County | 7.6 |
| 29 | Mitchell County | 7.6 |
| 30 | Buena Vista County | 7.5 |
| 31 | Des Moines County | 7.5 |
| 32 | Grundy County | 7.4 |
| 32 | Monroe County | 7.4 |
| 34 | Marshall County | 7.4 |
| 35 | Henry County | 7.2 |
| 36 | Muscatine County | 7.2 |
| 37 | Winnebago County | 7.1 |
| 38 | Clinton County | 7 |
| 39 | Clay County | 7 |
| 40 | Iowa County | 7 |
| 41 | Allamakee County | 6.7 |
| 42 | Hamilton County | 6.7 |
| 43 | Lee County | 6.6 |
| 44 | Jasper County | 6.5 |
| 45 | Wright County | 6.5 |
| 46 | Delaware County | 6.5 |
| 46 | Madison County | 6.5 |
| 48 | Jones County | 6.5 |
| 49 | Calhoun County | 6.4 |
| 50 | Union County | 6.3 |
| 51 | Monona County | 6.1 |
| 52 | Carroll County | 6.1 |
| 53 | Mahaska County | 6 |
| 54 | Fayette County | 6 |
| 55 | Tama County | 6 |
| 56 | Hardin County | 5.9 |
| 57 | Adams County | 5.8 |
| 57 | Harrison County | 5.8 |
| 57 | Webster County | 5.8 |
| 60 | Van Buren County | 5.8 |
| 61 | Buchanan County | 5.8 |
| 61 | Clarke County | 5.8 |
| 63 | Page County | 5.8 |
| 64 | Cedar County | 5.8 |
| 64 | Kossuth County | 5.8 |
| 66 | Ringgold County | 5.7 |
| 67 | Chickasaw County | 5.5 |
| 68 | Greene County | 5.4 |
| 69 | Hancock County | 5.4 |
| 70 | Lucas County | 5.3 |
| 71 | Montgomery County | 5.3 |
| 72 | Adair County | 5.2 |
| 73 | Butler County | 5.1 |
| 74 | Sac County | 5.1 |
| 75 | Davis County | 5.1 |
| 76 | Cass County | 5.1 |
| 77 | Ida County | 5.1 |
| 78 | Jackson County | 5 |
| 78 | Wayne County | 5 |
| 80 | Franklin County | 5 |
| 80 | Plymouth County | 5 |
| 82 | O'Brien County | 4.9 |
| 83 | Floyd County | 4.8 |
| 84 | Keokuk County | 4.7 |
| 85 | Worth County | 4.7 |
| 86 | Humboldt County | 4.6 |
| 87 | Taylor County | 4.6 |
| 88 | Palo Alto County | 4.5 |
| 89 | Emmet County | 4.4 |
| 90 | Pocahontas County | 4.2 |
| 91 | Crawford County | 4.2 |
| 92 | Osceola County | 4.1 |
| 93 | Lyon County | 4.1 |
| 94 | Appanoose County | 4.1 |
| 95 | Clayton County | 3.9 |
| 96 | Howard County | 3.9 |
| 97 | Audubon County | 3.6 |
| 98 | Fremont County | 3.4 |
| 99 | Louisa County | 2.9 |