Ranking of Iowa Counties By Population with Pennsylvania German Ancestry in 2021
Updated on April 16, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, there were 3.25K people in Iowa with Pennsylvania German ancestry. Among all Iowa counties, Clayton County had the highest population with Pennsylvania German ancestry (359), followed by Davis County (316), and Polk County (265).
The chart and table below shows the top 10 counties with high number of people with Pennsylvania German 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 Pennsylvania German Ancestry in 2021
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| Rank | County | Population |
|---|---|---|
| 1 | Clayton County | 359 |
| 2 | Davis County | 316 |
| 3 | Polk County | 265 |
| 4 | Linn County | 224 |
| 5 | Buchanan County | 213 |
| 6 | Johnson County | 175 |
| 7 | Des Moines County | 114 |
| 8 | Decatur County | 93 |
| 9 | Kossuth County | 87 |
| 10 | Scott County | 81 |
| 11 | Appanoose County | 73 |
| 12 | Delaware County | 63 |
| 13 | Madison County | 61 |
| 14 | Black Hawk County | 59 |
| 15 | Mitchell County | 58 |
| 16 | Muscatine County | 57 |
| 17 | Marion County | 56 |
| 18 | Clinton County | 55 |
| 19 | Story County | 53 |
| 20 | Marshall County | 45 |
| 21 | Pocahontas County | 44 |
| 22 | Clay County | 43 |
| 23 | Pottawattamie County | 39 |
| 24 | Dickinson County | 36 |
| 25 | Benton County | 35 |
| 26 | Palo Alto County | 34 |
| 27 | Wayne County | 33 |
| 28 | Harrison County | 32 |
| 29 | Washington County | 26 |
| 30 | Cherokee County | 25 |
| 31 | Henry County | 23 |
| 32 | Woodbury County | 22 |
| 33 | Iowa County | 21 |
| 34 | Boone County | 20 |
| 34 | Jackson County | 20 |
| 35 | Cerro Gordo County | 18 |
| 36 | Fremont County | 17 |
| 36 | Warren County | 17 |
| 37 | Mahaska County | 16 |
| 38 | Dubuque County | 13 |
| 38 | Page County | 13 |
| 39 | Worth County | 12 |
| 40 | Hancock County | 10 |
| 40 | Mills County | 10 |
| 40 | Wright County | 10 |
| 41 | Cass County | 9 |
| 41 | Cedar County | 9 |
| 41 | Dallas County | 9 |
| 41 | Tama County | 9 |
| 42 | Bremer County | 8 |
| 42 | Crawford County | 8 |
| 42 | Fayette County | 8 |
| 42 | Osceola County | 8 |
| 43 | O'Brien County | 7 |
| 43 | Ringgold County | 7 |
| 44 | Guthrie County | 6 |
| 44 | Lee County | 6 |
| 45 | Buena Vista County | 5 |
| 45 | Humboldt County | 5 |
| 45 | Montgomery County | 5 |
| 46 | Adair County | 4 |
| 46 | Carroll County | 4 |
| 46 | Emmet County | 4 |
| 46 | Jasper County | 4 |
| 46 | Wapello County | 4 |
| 46 | Winnebago County | 4 |
| 47 | Keokuk County | 3 |
| 47 | Webster County | 3 |
| 48 | Audubon County | 2 |
| 48 | Grundy County | 2 |
| 48 | Hamilton County | 2 |
| 48 | Hardin County | 2 |
| 48 | Howard County | 2 |
| 48 | Jones County | 2 |
| 48 | Monona County | 2 |
| 48 | Taylor County | 2 |
| 49 | Calhoun County | 1 |
| 49 | Ida County | 1 |
| 49 | Poweshiek County | 1 |