Ranking of Iowa Counties By Population with Subsaharan African Ancestry in 2021
Updated on April 16, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, there were 35.41K people in Iowa with Subsaharan African ancestry. Among all Iowa counties, Polk County had the highest population with Subsaharan African ancestry (12.98K), followed by Johnson County (5.64K), and Linn County (3.86K).
The chart and table below shows the top 10 counties with high number of people with Subsaharan African 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 Subsaharan African Ancestry in 2021
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| Rank | County | Population |
|---|---|---|
| 1 | Polk County | 12975 |
| 2 | Johnson County | 5642 |
| 3 | Linn County | 3855 |
| 4 | Black Hawk County | 1847 |
| 5 | Woodbury County | 1595 |
| 6 | Dallas County | 1213 |
| 7 | Story County | 920 |
| 8 | Scott County | 837 |
| 9 | Wapello County | 658 |
| 10 | Muscatine County | 512 |
| 11 | Crawford County | 511 |
| 12 | Jasper County | 460 |
| 13 | Dubuque County | 411 |
| 14 | Jefferson County | 332 |
| 15 | Lee County | 253 |
| 16 | Plymouth County | 250 |
| 17 | Pottawattamie County | 244 |
| 18 | Buena Vista County | 219 |
| 19 | Des Moines County | 200 |
| 20 | Allamakee County | 174 |
| 21 | Floyd County | 164 |
| 22 | Jones County | 150 |
| 23 | O'Brien County | 134 |
| 24 | Marshall County | 133 |
| 25 | Webster County | 126 |
| 26 | Poweshiek County | 123 |
| 27 | Boone County | 122 |
| 28 | Bremer County | 111 |
| 29 | Buchanan County | 99 |
| 30 | Marion County | 85 |
| 31 | Warren County | 82 |
| 32 | Henry County | 71 |
| 33 | Palo Alto County | 60 |
| 34 | Fayette County | 55 |
| 35 | Cedar County | 52 |
| 36 | Carroll County | 50 |
| 37 | Winneshiek County | 48 |
| 38 | Louisa County | 46 |
| 39 | Sioux County | 35 |
| 40 | Butler County | 34 |
| 41 | Monona County | 29 |
| 42 | Cerro Gordo County | 26 |
| 42 | Emmet County | 26 |
| 42 | Howard County | 26 |
| 43 | Mahaska County | 25 |
| 43 | Washington County | 25 |
| 44 | Cherokee County | 23 |
| 44 | Clayton County | 23 |
| 44 | Decatur County | 23 |
| 45 | Monroe County | 20 |
| 46 | Hancock County | 19 |
| 47 | Clarke County | 18 |
| 48 | Appanoose County | 17 |
| 49 | Grundy County | 16 |
| 49 | Union County | 16 |
| 50 | Clinton County | 14 |
| 50 | Harrison County | 14 |
| 50 | Tama County | 14 |
| 51 | Page County | 12 |
| 51 | Van Buren County | 12 |
| 52 | Benton County | 11 |
| 52 | Cass County | 11 |
| 52 | Keokuk County | 11 |
| 53 | Calhoun County | 10 |
| 53 | Fremont County | 10 |
| 54 | Hardin County | 9 |
| 55 | Wayne County | 8 |
| 56 | Kossuth County | 7 |
| 57 | Hamilton County | 6 |
| 57 | Osceola County | 6 |
| 57 | Pocahontas County | 6 |
| 58 | Adams County | 4 |
| 58 | Greene County | 4 |
| 58 | Humboldt County | 4 |
| 58 | Lyon County | 4 |
| 59 | Clay County | 3 |
| 59 | Mills County | 3 |
| 60 | Iowa County | 2 |
| 60 | Sac County | 2 |
| 61 | Dickinson County | 1 |
| 61 | Jackson County | 1 |
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