Ranking of Iowa Counties By Percentage of Population with Swiss Ancestry in 2021
Updated on April 16, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, there were 15.19K people in Iowa with Swiss ancestry (0.48% of Iowa population). Among all Iowa counties, Davis County had the highest percentage of its population with Swiss ancestry (4.25%), followed by Howard County (3.93%), and Washington County (2.70%).
The chart and table below shows the top 10 counties with high percentage of its population having Swiss ancestry.
You can see similar information for other states and for other ancestry groups in Iowa.
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Related Topics: Iowa ACS-5Yrs Estimates, 2021 Topic List.
Data Source: US Census Bureau.
Ranking of Iowa Counties By Percentage of Population with Swiss Ancestry in 2021
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| Rank | County | Percentage of Pop. (%) |
|---|---|---|
| 1 | Davis County | 4.25 |
| 2 | Howard County | 3.93 |
| 3 | Washington County | 2.70 |
| 4 | Fayette County | 2.10 |
| 5 | Jones County | 1.79 |
| 6 | Lyon County | 1.78 |
| 7 | Van Buren County | 1.32 |
| 8 | Floyd County | 1.20 |
| 9 | Henry County | 1.12 |
| 10 | Jackson County | 1.10 |
| 11 | Palo Alto County | 1.06 |
| 12 | Clayton County | 1.01 |
| 13 | Taylor County | 1.00 |
| 14 | Mitchell County | 0.85 |
| 15 | Des Moines County | 0.83 |
| 16 | Dubuque County | 0.82 |
| 17 | Allamakee County | 0.78 |
| 18 | Johnson County | 0.77 |
| 18 | Wayne County | 0.77 |
| 19 | Union County | 0.74 |
| 20 | Kossuth County | 0.72 |
| 21 | Dallas County | 0.71 |
| 21 | Sioux County | 0.71 |
| 22 | Tama County | 0.70 |
| 23 | Story County | 0.68 |
| 24 | Ida County | 0.63 |
| 24 | Jefferson County | 0.63 |
| 25 | Delaware County | 0.61 |
| 26 | Keokuk County | 0.60 |
| 26 | Marion County | 0.60 |
| 27 | Black Hawk County | 0.54 |
| 27 | Iowa County | 0.54 |
| 28 | Humboldt County | 0.50 |
| 29 | Louisa County | 0.44 |
| 30 | Linn County | 0.43 |
| 31 | Clarke County | 0.42 |
| 32 | Benton County | 0.41 |
| 32 | Jasper County | 0.41 |
| 32 | Montgomery County | 0.41 |
| 33 | Scott County | 0.40 |
| 34 | Clay County | 0.39 |
| 35 | Mills County | 0.38 |
| 36 | Cherokee County | 0.36 |
| 37 | Clinton County | 0.35 |
| 38 | Worth County | 0.34 |
| 39 | Calhoun County | 0.33 |
| 39 | Hancock County | 0.33 |
| 40 | O'Brien County | 0.32 |
| 40 | Wright County | 0.32 |
| 41 | Boone County | 0.31 |
| 41 | Chickasaw County | 0.31 |
| 41 | Crawford County | 0.31 |
| 41 | Hamilton County | 0.31 |
| 42 | Cerro Gordo County | 0.30 |
| 42 | Winneshiek County | 0.30 |
| 43 | Polk County | 0.29 |
| 44 | Warren County | 0.28 |
| 45 | Buchanan County | 0.26 |
| 45 | Page County | 0.26 |
| 45 | Webster County | 0.26 |
| 46 | Buena Vista County | 0.25 |
| 46 | Muscatine County | 0.25 |
| 46 | Poweshiek County | 0.25 |
| 47 | Guthrie County | 0.24 |
| 47 | Hardin County | 0.24 |
| 48 | Harrison County | 0.23 |
| 48 | Plymouth County | 0.23 |
| 48 | Pocahontas County | 0.23 |
| 48 | Wapello County | 0.23 |
| 49 | Appanoose County | 0.21 |
| 49 | Decatur County | 0.21 |
| 50 | Butler County | 0.19 |
| 50 | Grundy County | 0.19 |
| 51 | Audubon County | 0.18 |
| 52 | Carroll County | 0.17 |
| 52 | Cass County | 0.17 |
| 52 | Monroe County | 0.17 |
| 52 | Woodbury County | 0.17 |
| 53 | Adair County | 0.16 |
| 53 | Cedar County | 0.16 |
| 54 | Marshall County | 0.15 |
| 55 | Bremer County | 0.14 |
| 55 | Pottawattamie County | 0.14 |
| 56 | Dickinson County | 0.13 |
| 56 | Franklin County | 0.13 |
| 56 | Sac County | 0.13 |
| 57 | Mahaska County | 0.11 |
| 58 | Fremont County | 0.10 |
| 58 | Lee County | 0.10 |
| 59 | Monona County | 0.09 |
| 60 | Adams County | 0.08 |
| 60 | Greene County | 0.08 |
| 61 | Emmet County | 0.06 |
| 62 | Shelby County | 0.05 |
| 63 | Madison County | 0.04 |
| 64 | Osceola County | 0.03 |
| 65 | Lucas County | 0.02 |
| 65 | Winnebago County | 0.02 |
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