# Counties in Iowa by foreign-born share of the population, 2024

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

- Indicator id: `foreign_born_share`
- Unit: %
- Definition: People who were not US citizens at birth, as a percentage of the total population. Includes naturalized citizens, lawful permanent residents, temporary migrants and unauthorized immigrants. 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 B05002: foreign-born population as a percentage of the total population, calculated with stored inputs (https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b05002.dat)
- Retrieved: 2026-10-09
- Citation: U.S. Census Bureau. American Community Survey 5-year estimates, table B05002: foreign-born population as a percentage of the total population, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b05002.dat. Retrieved 2026-10-09.
- Web page: https://invokely.ai/rankings/foreign-born-population/iowa-counties
- CSV: https://invokely.ai/download/rankings/foreign-born-population/iowa-counties.csv

| Rank | Place | % |
|---:|---|---:|
| 1 | Buena Vista County | 21.3 |
| 2 | Crawford County | 17.5 |
| 3 | Marshall County | 14.6 |
| 4 | Jefferson County | 14.1 |
| 5 | Woodbury County | 10.6 |
| 6 | Dallas County | 10.4 |
| 7 | Polk County | 10.1 |
| 8 | Wapello County | 9.9 |
| 9 | Johnson County | 9.8 |
| 10 | Louisa County | 9.4 |
| 11 | Story County | 8.6 |
| 12 | Sioux County | 8.5 |
| 13 | Franklin County | 8.5 |
| 14 | Allamakee County | 7.2 |
| 15 | Muscatine County | 6.8 |
| 16 | Clarke County | 6.6 |
| 17 | Wright County | 6.5 |
| 18 | Black Hawk County | 6.5 |
| 19 | Hamilton County | 6.4 |
| 20 | Osceola County | 5.8 |
| 21 | Linn County | 5.6 |
| 22 | Scott County | 4.8 |
| 23 | O'Brien County | 4.4 |
| 24 | Humboldt County | 4.4 |
| 25 | Lucas County | 4.1 |
| 25 | Tama County | 4.1 |
| 27 | Pottawattamie County | 4 |
| 28 | Plymouth County | 3.7 |
| 29 | Hardin County | 3.6 |
| 30 | Poweshiek County | 3.6 |
| 31 | Cherokee County | 3.6 |
| 32 | Winnebago County | 3.5 |
| 33 | Kossuth County | 3.4 |
| 34 | Emmet County | 3.4 |
| 35 | Dubuque County | 3.3 |
| 36 | Washington County | 3.2 |
| 37 | Taylor County | 3.2 |
| 38 | Pocahontas County | 3.2 |
| 39 | Webster County | 3 |
| 40 | Chickasaw County | 3 |
| 41 | Jasper County | 2.8 |
| 42 | Winneshiek County | 2.6 |
| 43 | Cerro Gordo County | 2.6 |
| 44 | Ida County | 2.6 |
| 45 | Clay County | 2.5 |
| 46 | Palo Alto County | 2.5 |
| 47 | Floyd County | 2.4 |
| 48 | Sac County | 2.4 |
| 49 | Des Moines County | 2.3 |
| 50 | Howard County | 2.3 |
| 51 | Butler County | 2.3 |
| 51 | Clayton County | 2.3 |
| 53 | Mahaska County | 2.2 |
| 54 | Hancock County | 2.2 |
| 55 | Fayette County | 2.1 |
| 56 | Marion County | 2.1 |
| 57 | Henry County | 2 |
| 58 | Clinton County | 2 |
| 59 | Lyon County | 2 |
| 60 | Lee County | 1.9 |
| 61 | Decatur County | 1.9 |
| 61 | Guthrie County | 1.9 |
| 63 | Page County | 1.9 |
| 64 | Union County | 1.8 |
| 65 | Mitchell County | 1.8 |
| 66 | Madison County | 1.8 |
| 67 | Grundy County | 1.7 |
| 68 | Audubon County | 1.7 |
| 69 | Adair County | 1.6 |
| 70 | Fremont County | 1.6 |
| 70 | Shelby County | 1.6 |
| 72 | Jones County | 1.6 |
| 73 | Bremer County | 1.6 |
| 73 | Montgomery County | 1.6 |
| 75 | Carroll County | 1.6 |
| 76 | Warren County | 1.5 |
| 77 | Boone County | 1.5 |
| 78 | Greene County | 1.5 |
| 79 | Davis County | 1.4 |
| 80 | Appanoose County | 1.3 |
| 81 | Buchanan County | 1.3 |
| 82 | Dickinson County | 1.2 |
| 83 | Mills County | 1.2 |
| 84 | Keokuk County | 1 |
| 85 | Iowa County | 1 |
| 86 | Calhoun County | 1 |
| 87 | Wayne County | 0.9 |
| 88 | Cass County | 0.9 |
| 89 | Cedar County | 0.9 |
| 90 | Worth County | 0.9 |
| 91 | Benton County | 0.8 |
| 92 | Harrison County | 0.8 |
| 93 | Jackson County | 0.8 |
| 94 | Monroe County | 0.8 |
| 95 | Ringgold County | 0.7 |
| 96 | Monona County | 0.7 |
| 97 | Van Buren County | 0.6 |
| 98 | Adams County | 0.5 |
| 99 | Delaware County | 0.3 |