Ranking of Iowa Counties By Population with Welsh Ancestry in 2021
Updated on April 16, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, there were 19.65K people in Iowa with Welsh ancestry. Among all Iowa counties, Polk County had the highest population with Welsh ancestry (3.78K), followed by Linn County (1.65K), and Johnson County (1.17K).
The chart and table below shows the top 10 counties with high number of people with Welsh 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 Welsh Ancestry in 2021
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| Rank | County | Population |
|---|---|---|
| 1 | Polk County | 3784 |
| 2 | Linn County | 1650 |
| 3 | Johnson County | 1172 |
| 4 | Dallas County | 767 |
| 5 | Scott County | 727 |
| 6 | Black Hawk County | 665 |
| 7 | Story County | 646 |
| 8 | Woodbury County | 440 |
| 9 | Pottawattamie County | 424 |
| 10 | Warren County | 366 |
| 11 | Jasper County | 365 |
| 12 | Keokuk County | 335 |
| 13 | Marion County | 330 |
| 14 | Des Moines County | 318 |
| 15 | Madison County | 294 |
| 16 | Dubuque County | 285 |
| 17 | Cerro Gordo County | 283 |
| 18 | Iowa County | 276 |
| 18 | Marshall County | 276 |
| 19 | Mahaska County | 253 |
| 20 | Clinton County | 251 |
| 21 | Muscatine County | 230 |
| 22 | Washington County | 200 |
| 23 | Cedar County | 194 |
| 24 | Louisa County | 185 |
| 25 | Henry County | 176 |
| 26 | Webster County | 163 |
| 27 | Wapello County | 151 |
| 28 | Boone County | 150 |
| 29 | Benton County | 144 |
| 30 | Lee County | 133 |
| 30 | Union County | 133 |
| 31 | Cherokee County | 123 |
| 32 | Delaware County | 114 |
| 33 | Tama County | 112 |
| 34 | Mills County | 111 |
| 35 | Davis County | 110 |
| 35 | Guthrie County | 110 |
| 36 | Jones County | 109 |
| 37 | Cass County | 108 |
| 37 | Page County | 108 |
| 38 | Buena Vista County | 103 |
| 38 | Fayette County | 103 |
| 39 | Fremont County | 96 |
| 40 | Monroe County | 95 |
| 41 | Jackson County | 90 |
| 42 | Hardin County | 89 |
| 43 | Poweshiek County | 88 |
| 44 | Appanoose County | 86 |
| 45 | Plymouth County | 85 |
| 46 | Bremer County | 84 |
| 47 | Winneshiek County | 80 |
| 48 | Winnebago County | 79 |
| 49 | Buchanan County | 78 |
| 50 | Allamakee County | 71 |
| 51 | Calhoun County | 69 |
| 52 | Lucas County | 68 |
| 53 | Montgomery County | 64 |
| 54 | Clay County | 62 |
| 55 | Grundy County | 61 |
| 56 | Kossuth County | 58 |
| 57 | Wright County | 57 |
| 58 | Clayton County | 56 |
| 58 | Dickinson County | 56 |
| 59 | Crawford County | 55 |
| 60 | Harrison County | 54 |
| 60 | Jefferson County | 54 |
| 60 | Worth County | 54 |
| 61 | Adair County | 52 |
| 61 | Shelby County | 52 |
| 62 | Decatur County | 50 |
| 63 | Palo Alto County | 48 |
| 63 | Sioux County | 48 |
| 64 | Emmet County | 47 |
| 65 | Carroll County | 41 |
| 66 | Butler County | 40 |
| 67 | Clarke County | 37 |
| 68 | Franklin County | 36 |
| 68 | Ida County | 36 |
| 69 | Hancock County | 35 |
| 70 | Monona County | 34 |
| 71 | Humboldt County | 29 |
| 71 | Sac County | 29 |
| 71 | Van Buren County | 29 |
| 71 | Wayne County | 29 |
| 72 | Hamilton County | 28 |
| 73 | Pocahontas County | 26 |
| 74 | Howard County | 23 |
| 75 | Lyon County | 19 |
| 76 | O'Brien County | 18 |
| 77 | Ringgold County | 17 |
| 78 | Adams County | 15 |
| 78 | Audubon County | 15 |
| 78 | Chickasaw County | 15 |
| 79 | Greene County | 14 |
| 80 | Mitchell County | 11 |
| 81 | Taylor County | 6 |
| 82 | Osceola County | 5 |
| 83 | Floyd County | 2 |
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