Ranking of Iowa Counties By Percentage of Population with Scandinavian Ancestry in 2021
Updated on April 16, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, there were 15.78K people in Iowa with Scandinavian ancestry (0.50% of Iowa population). Among all Iowa counties, Madison County had the highest percentage of its population with Scandinavian ancestry (1.30%), followed by Dickinson County (1.24%), and Story County (1.24%).
The chart and table below shows the top 10 counties with high percentage of its population having Scandinavian 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 Scandinavian Ancestry in 2021
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| Rank | County | Percentage of Pop. (%) |
|---|---|---|
| 1 | Madison County | 1.30 |
| 2 | Dickinson County | 1.24 |
| 2 | Story County | 1.24 |
| 3 | Floyd County | 1.13 |
| 4 | Lucas County | 1.10 |
| 5 | Sac County | 1.09 |
| 6 | Howard County | 1.06 |
| 7 | Cerro Gordo County | 0.89 |
| 8 | Warren County | 0.74 |
| 9 | Calhoun County | 0.70 |
| 10 | Boone County | 0.69 |
| 10 | Hamilton County | 0.69 |
| 10 | Ida County | 0.69 |
| 11 | Cass County | 0.68 |
| 11 | Jasper County | 0.68 |
| 12 | Polk County | 0.66 |
| 13 | Webster County | 0.65 |
| 14 | Adair County | 0.63 |
| 14 | Carroll County | 0.63 |
| 14 | Ringgold County | 0.63 |
| 15 | Linn County | 0.62 |
| 15 | Monona County | 0.62 |
| 16 | Johnson County | 0.60 |
| 17 | Worth County | 0.59 |
| 18 | Black Hawk County | 0.58 |
| 18 | Buena Vista County | 0.58 |
| 18 | Greene County | 0.58 |
| 18 | Van Buren County | 0.58 |
| 19 | Dallas County | 0.56 |
| 20 | Kossuth County | 0.53 |
| 20 | Mills County | 0.53 |
| 21 | Franklin County | 0.51 |
| 21 | Pocahontas County | 0.51 |
| 22 | Pottawattamie County | 0.49 |
| 22 | Union County | 0.49 |
| 23 | Harrison County | 0.47 |
| 23 | Palo Alto County | 0.47 |
| 24 | Wright County | 0.46 |
| 25 | Page County | 0.45 |
| 26 | Hancock County | 0.42 |
| 27 | Woodbury County | 0.41 |
| 28 | Butler County | 0.40 |
| 29 | Osceola County | 0.39 |
| 29 | Poweshiek County | 0.39 |
| 29 | Scott County | 0.39 |
| 30 | Bremer County | 0.38 |
| 30 | Henry County | 0.38 |
| 31 | Emmet County | 0.37 |
| 31 | Hardin County | 0.37 |
| 31 | Winneshiek County | 0.37 |
| 32 | Clarke County | 0.36 |
| 32 | Lee County | 0.36 |
| 32 | Mitchell County | 0.36 |
| 32 | Plymouth County | 0.36 |
| 33 | Chickasaw County | 0.35 |
| 33 | Clay County | 0.35 |
| 34 | Appanoose County | 0.34 |
| 34 | Cherokee County | 0.34 |
| 34 | Fremont County | 0.34 |
| 34 | Lyon County | 0.34 |
| 34 | Marshall County | 0.34 |
| 34 | Monroe County | 0.34 |
| 34 | Winnebago County | 0.34 |
| 35 | Fayette County | 0.32 |
| 36 | Keokuk County | 0.29 |
| 37 | Humboldt County | 0.28 |
| 38 | Cedar County | 0.27 |
| 38 | O'Brien County | 0.27 |
| 39 | Grundy County | 0.26 |
| 40 | Shelby County | 0.25 |
| 41 | Guthrie County | 0.24 |
| 41 | Jefferson County | 0.24 |
| 41 | Marion County | 0.24 |
| 42 | Louisa County | 0.22 |
| 43 | Decatur County | 0.21 |
| 44 | Des Moines County | 0.20 |
| 45 | Audubon County | 0.19 |
| 46 | Clayton County | 0.18 |
| 47 | Buchanan County | 0.17 |
| 47 | Muscatine County | 0.17 |
| 47 | Sioux County | 0.17 |
| 48 | Jones County | 0.16 |
| 48 | Washington County | 0.16 |
| 49 | Allamakee County | 0.15 |
| 49 | Wapello County | 0.15 |
| 50 | Crawford County | 0.14 |
| 50 | Dubuque County | 0.14 |
| 51 | Iowa County | 0.12 |
| 52 | Benton County | 0.11 |
| 52 | Wayne County | 0.11 |
| 53 | Jackson County | 0.09 |
| 53 | Mahaska County | 0.09 |
| 54 | Tama County | 0.05 |
| 55 | Clinton County | 0.04 |
| 55 | Davis County | 0.04 |
| 56 | Montgomery County | 0.01 |