Ranking of Iowa Counties By 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. Among all Iowa counties, Polk County had the highest population with Swiss ancestry (1.41K), followed by Johnson County (1.16K), and Linn County (973).
The chart and table below shows the top 10 counties with high number of people with 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 Population with Swiss Ancestry in 2021
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| Rank | County | Population |
|---|---|---|
| 1 | Polk County | 1408 |
| 2 | Johnson County | 1163 |
| 3 | Linn County | 973 |
| 4 | Dubuque County | 813 |
| 5 | Black Hawk County | 708 |
| 6 | Scott County | 700 |
| 7 | Dallas County | 689 |
| 8 | Story County | 664 |
| 9 | Washington County | 607 |
| 10 | Fayette County | 411 |
| 11 | Davis County | 385 |
| 12 | Howard County | 372 |
| 13 | Jones County | 371 |
| 14 | Des Moines County | 325 |
| 15 | Sioux County | 253 |
| 16 | Henry County | 229 |
| 17 | Jackson County | 215 |
| 18 | Lyon County | 213 |
| 19 | Marion County | 201 |
| 20 | Floyd County | 188 |
| 21 | Woodbury County | 174 |
| 22 | Clayton County | 173 |
| 23 | Clinton County | 163 |
| 24 | Jasper County | 156 |
| 25 | Warren County | 144 |
| 26 | Pottawattamie County | 132 |
| 27 | Cerro Gordo County | 129 |
| 28 | Tama County | 119 |
| 29 | Allamakee County | 109 |
| 30 | Delaware County | 107 |
| 30 | Kossuth County | 107 |
| 30 | Muscatine County | 107 |
| 31 | Benton County | 104 |
| 32 | Jefferson County | 100 |
| 33 | Webster County | 96 |
| 34 | Palo Alto County | 95 |
| 34 | Van Buren County | 95 |
| 35 | Union County | 90 |
| 36 | Iowa County | 89 |
| 36 | Mitchell County | 89 |
| 37 | Boone County | 83 |
| 38 | Wapello County | 81 |
| 39 | Clay County | 64 |
| 40 | Marshall County | 62 |
| 41 | Keokuk County | 60 |
| 41 | Winneshiek County | 60 |
| 42 | Taylor County | 59 |
| 43 | Plymouth County | 58 |
| 44 | Mills County | 56 |
| 45 | Buchanan County | 53 |
| 46 | Buena Vista County | 52 |
| 47 | Crawford County | 51 |
| 48 | Wayne County | 50 |
| 49 | Humboldt County | 48 |
| 49 | Louisa County | 48 |
| 50 | Hamilton County | 46 |
| 50 | Poweshiek County | 46 |
| 51 | O'Brien County | 45 |
| 52 | Ida County | 44 |
| 53 | Cherokee County | 42 |
| 53 | Montgomery County | 42 |
| 54 | Clarke County | 41 |
| 54 | Hardin County | 41 |
| 54 | Wright County | 41 |
| 55 | Page County | 39 |
| 56 | Chickasaw County | 37 |
| 57 | Hancock County | 36 |
| 58 | Carroll County | 35 |
| 59 | Bremer County | 34 |
| 60 | Calhoun County | 33 |
| 60 | Harrison County | 33 |
| 60 | Lee County | 33 |
| 61 | Cedar County | 30 |
| 62 | Butler County | 27 |
| 63 | Appanoose County | 26 |
| 64 | Guthrie County | 25 |
| 64 | Mahaska County | 25 |
| 64 | Worth County | 25 |
| 65 | Dickinson County | 23 |
| 65 | Grundy County | 23 |
| 66 | Cass County | 22 |
| 67 | Decatur County | 16 |
| 67 | Pocahontas County | 16 |
| 68 | Franklin County | 13 |
| 68 | Monroe County | 13 |
| 68 | Sac County | 13 |
| 69 | Adair County | 12 |
| 70 | Audubon County | 10 |
| 71 | Monona County | 8 |
| 72 | Fremont County | 7 |
| 72 | Greene County | 7 |
| 73 | Emmet County | 6 |
| 73 | Madison County | 6 |
| 73 | Shelby County | 6 |
| 74 | Adams County | 3 |
| 75 | Lucas County | 2 |
| 75 | Osceola County | 2 |
| 75 | Winnebago County | 2 |