Ranking of Iowa Counties By Population with Scottish Ancestry in 2021
Updated on April 16, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, there were 45.41K people in Iowa with Scottish ancestry. Among all Iowa counties, Polk County had the highest population with Scottish ancestry (7.46K), followed by Linn County (3.93K), and Johnson County (2.67K).
The chart and table below shows the top 10 counties with high number of people with Scottish 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 Scottish Ancestry in 2021
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| Rank | County | Population |
|---|---|---|
| 1 | Polk County | 7460 |
| 2 | Linn County | 3934 |
| 3 | Johnson County | 2674 |
| 4 | Scott County | 2643 |
| 5 | Black Hawk County | 1713 |
| 6 | Story County | 1526 |
| 7 | Dallas County | 1494 |
| 8 | Pottawattamie County | 1212 |
| 9 | Woodbury County | 1139 |
| 10 | Warren County | 980 |
| 11 | Jones County | 940 |
| 12 | Dubuque County | 805 |
| 13 | Muscatine County | 800 |
| 14 | Boone County | 597 |
| 15 | Lee County | 596 |
| 16 | Clinton County | 590 |
| 17 | Webster County | 558 |
| 18 | Cerro Gordo County | 540 |
| 19 | Marshall County | 502 |
| 20 | Wapello County | 501 |
| 21 | Marion County | 490 |
| 22 | Jasper County | 461 |
| 23 | Washington County | 454 |
| 24 | Des Moines County | 452 |
| 25 | Poweshiek County | 433 |
| 26 | Mahaska County | 399 |
| 27 | Henry County | 342 |
| 28 | Buchanan County | 326 |
| 29 | Jefferson County | 323 |
| 30 | Mills County | 318 |
| 31 | Union County | 315 |
| 32 | Benton County | 305 |
| 33 | Madison County | 277 |
| 34 | Page County | 270 |
| 35 | Keokuk County | 267 |
| 36 | Grundy County | 249 |
| 37 | Sac County | 246 |
| 38 | Plymouth County | 244 |
| 39 | Winneshiek County | 235 |
| 40 | Iowa County | 227 |
| 41 | Jackson County | 223 |
| 42 | Cedar County | 222 |
| 43 | Cherokee County | 213 |
| 44 | Bremer County | 208 |
| 45 | Appanoose County | 207 |
| 46 | Hamilton County | 204 |
| 47 | Clay County | 202 |
| 47 | Hardin County | 202 |
| 48 | Sioux County | 196 |
| 49 | Carroll County | 190 |
| 50 | Fayette County | 184 |
| 51 | Buena Vista County | 181 |
| 51 | Cass County | 181 |
| 52 | Decatur County | 180 |
| 53 | Tama County | 176 |
| 54 | O'Brien County | 171 |
| 55 | Dickinson County | 169 |
| 55 | Louisa County | 169 |
| 56 | Van Buren County | 168 |
| 57 | Butler County | 157 |
| 57 | Kossuth County | 157 |
| 58 | Guthrie County | 152 |
| 59 | Lucas County | 150 |
| 60 | Harrison County | 149 |
| 60 | Wayne County | 149 |
| 61 | Pocahontas County | 148 |
| 62 | Greene County | 145 |
| 63 | Clayton County | 144 |
| 64 | Humboldt County | 142 |
| 65 | Fremont County | 130 |
| 66 | Hancock County | 128 |
| 67 | Palo Alto County | 120 |
| 68 | Taylor County | 117 |
| 69 | Crawford County | 116 |
| 70 | Wright County | 114 |
| 71 | Allamakee County | 110 |
| 71 | Monona County | 110 |
| 72 | Montgomery County | 101 |
| 73 | Howard County | 94 |
| 74 | Ringgold County | 88 |
| 75 | Davis County | 86 |
| 76 | Ida County | 83 |
| 77 | Floyd County | 82 |
| 78 | Adair County | 80 |
| 79 | Clarke County | 78 |
| 79 | Emmet County | 78 |
| 80 | Lyon County | 74 |
| 81 | Calhoun County | 69 |
| 82 | Chickasaw County | 68 |
| 82 | Delaware County | 68 |
| 83 | Franklin County | 63 |
| 84 | Audubon County | 61 |
| 85 | Adams County | 59 |
| 86 | Shelby County | 57 |
| 87 | Worth County | 51 |
| 88 | Mitchell County | 48 |
| 89 | Winnebago County | 43 |
| 90 | Monroe County | 40 |
| 91 | Osceola County | 14 |