Ranking of Iowa Counties By Two Or More Races Population in 2018
Updated on June 18, 2025.
Based on the US Census Vintage data estimates, in 2018, among all Iowa counties, Polk County had the highest number of people who identified their race as Two Or More Races (11.91K), followed by Linn County (6.39K), and Scott County (5.48K).
The chart below shows the top 10 counties, and the table below shows the ranking of all Iowa counties.
You can see similar ranking information for other racial and ethnicity groups in the United States.
You can also see similar information for other states, and also the ranking of all counties in the United States.
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Related Topics: Iowa Census Vintage Data Topic List.
Data Source: US Census Bureau (Vintage).
See this for other years:
Ranking of Iowa Counties By Two Or More Races Population in 2018
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| Rank | County | Two Or More Races Population |
|---|---|---|
| 1 | Polk County | 11907 |
| 2 | Linn County | 6392 |
| 3 | Scott County | 5480 |
| 4 | Johnson County | 3769 |
| 5 | Black Hawk County | 3371 |
| 6 | Woodbury County | 2987 |
| 7 | Pottawattamie County | 1829 |
| 8 | Story County | 1768 |
| 9 | Dubuque County | 1606 |
| 10 | Dallas County | 1458 |
| 11 | Des Moines County | 1165 |
| 12 | Clinton County | 1006 |
| 13 | Webster County | 858 |
| 14 | Cerro Gordo County | 770 |
| 15 | Marshall County | 743 |
| 16 | Warren County | 704 |
| 17 | Lee County | 658 |
| 18 | Muscatine County | 647 |
| 19 | Wapello County | 555 |
| 20 | Tama County | 471 |
| 21 | Marion County | 431 |
| 22 | Jasper County | 428 |
| 23 | Henry County | 337 |
| 24 | Plymouth County | 319 |
| 25 | Jefferson County | 314 |
| 26 | Boone County | 305 |
| 27 | Washington County | 303 |
| 28 | Poweshiek County | 301 |
| 29 | Bremer County | 279 |
| 30 | Benton County | 276 |
| 30 | Sioux County | 276 |
| 31 | Buena Vista County | 271 |
| 31 | Mahaska County | 271 |
| 32 | Fayette County | 262 |
| 33 | Hamilton County | 248 |
| 34 | Jackson County | 242 |
| 34 | Page County | 242 |
| 35 | Cedar County | 239 |
| 36 | Floyd County | 226 |
| 37 | Buchanan County | 222 |
| 38 | Carroll County | 206 |
| 39 | Madison County | 205 |
| 40 | Clay County | 204 |
| 41 | Hardin County | 201 |
| 42 | Emmet County | 195 |
| 43 | Harrison County | 194 |
| 44 | Mills County | 179 |
| 45 | Iowa County | 177 |
| 46 | Appanoose County | 176 |
| 46 | Dickinson County | 176 |
| 47 | Kossuth County | 166 |
| 48 | Winneshiek County | 165 |
| 49 | Wright County | 162 |
| 50 | Jones County | 156 |
| 51 | Clayton County | 153 |
| 52 | Louisa County | 152 |
| 53 | Winnebago County | 147 |
| 54 | Delaware County | 140 |
| 55 | Clarke County | 136 |
| 55 | Crawford County | 136 |
| 56 | Franklin County | 135 |
| 57 | O'Brien County | 134 |
| 58 | Humboldt County | 132 |
| 59 | Guthrie County | 131 |
| 60 | Butler County | 125 |
| 60 | Union County | 125 |
| 61 | Montgomery County | 124 |
| 62 | Cass County | 122 |
| 63 | Lyon County | 121 |
| 64 | Shelby County | 120 |
| 65 | Greene County | 119 |
| 66 | Monona County | 118 |
| 66 | Sac County | 118 |
| 67 | Decatur County | 116 |
| 68 | Cherokee County | 114 |
| 69 | Grundy County | 110 |
| 70 | Allamakee County | 100 |
| 70 | Hancock County | 100 |
| 70 | Worth County | 100 |
| 71 | Palo Alto County | 99 |
| 72 | Calhoun County | 98 |
| 73 | Pocahontas County | 96 |
| 74 | Keokuk County | 94 |
| 74 | Van Buren County | 94 |
| 75 | Chickasaw County | 89 |
| 75 | Davis County | 89 |
| 75 | Fremont County | 89 |
| 76 | Howard County | 86 |
| 77 | Monroe County | 85 |
| 78 | Osceola County | 82 |
| 79 | Lucas County | 77 |
| 80 | Mitchell County | 75 |
| 81 | Wayne County | 74 |
| 82 | Ida County | 73 |
| 83 | Adair County | 70 |
| 84 | Ringgold County | 53 |
| 85 | Audubon County | 51 |
| 85 | Taylor County | 51 |
| 86 | Adams County | 28 |
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