Ranking of Iowa Counties By Non-Hispanic White Population in 2017
Updated on June 18, 2025.
Based on the US Census Vintage data estimates, in 2017, among all Iowa counties, Polk County had the highest number of people who identified their ethnicity as Non-Hispanic White (373.21K), followed by Linn County (192.92K), and Scott County (138.05K).
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 Non-Hispanic White Population in 2017
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| Rank | County | Non-Hispanic White Population |
|---|---|---|
| 1 | Polk County | 373214 |
| 2 | Linn County | 192917 |
| 3 | Scott County | 138046 |
| 4 | Johnson County | 117215 |
| 5 | Black Hawk County | 107295 |
| 6 | Dubuque County | 87952 |
| 7 | Pottawattamie County | 81959 |
| 8 | Story County | 81552 |
| 9 | Woodbury County | 74836 |
| 10 | Dallas County | 74622 |
| 11 | Warren County | 47199 |
| 12 | Clinton County | 42696 |
| 13 | Cerro Gordo County | 38974 |
| 14 | Jasper County | 34662 |
| 15 | Des Moines County | 34384 |
| 16 | Muscatine County | 33042 |
| 17 | Webster County | 31799 |
| 18 | Marion County | 31328 |
| 19 | Lee County | 31092 |
| 20 | Sioux County | 30298 |
| 21 | Wapello County | 28890 |
| 22 | Marshall County | 28283 |
| 23 | Boone County | 24983 |
| 24 | Benton County | 24707 |
| 25 | Bremer County | 23640 |
| 26 | Plymouth County | 23011 |
| 27 | Mahaska County | 20859 |
| 28 | Buchanan County | 20335 |
| 29 | Washington County | 20224 |
| 30 | Jones County | 19325 |
| 31 | Carroll County | 19221 |
| 32 | Winneshiek County | 19167 |
| 33 | Fayette County | 18496 |
| 34 | Jackson County | 18466 |
| 35 | Henry County | 17683 |
| 36 | Cedar County | 17663 |
| 37 | Clayton County | 16937 |
| 38 | Poweshiek County | 16800 |
| 39 | Delaware County | 16548 |
| 40 | Dickinson County | 16421 |
| 41 | Hardin County | 15728 |
| 42 | Iowa County | 15370 |
| 43 | Madison County | 15242 |
| 44 | Clay County | 15095 |
| 45 | Jefferson County | 14695 |
| 46 | Floyd County | 14447 |
| 47 | Mills County | 14168 |
| 48 | Kossuth County | 14130 |
| 49 | Butler County | 14075 |
| 50 | Page County | 13896 |
| 51 | Tama County | 13750 |
| 52 | Harrison County | 13575 |
| 53 | Hamilton County | 13437 |
| 54 | O'Brien County | 12747 |
| 55 | Cass County | 12521 |
| 56 | Allamakee County | 12501 |
| 57 | Grundy County | 11929 |
| 58 | Buena Vista County | 11894 |
| 59 | Appanoose County | 11776 |
| 60 | Union County | 11713 |
| 61 | Chickasaw County | 11484 |
| 62 | Lyon County | 11270 |
| 63 | Crawford County | 11239 |
| 64 | Shelby County | 10968 |
| 65 | Wright County | 10925 |
| 66 | Cherokee County | 10573 |
| 67 | Mitchell County | 10217 |
| 68 | Guthrie County | 10120 |
| 69 | Hancock County | 10043 |
| 70 | Keokuk County | 9779 |
| 71 | Winnebago County | 9666 |
| 72 | Montgomery County | 9477 |
| 73 | Sac County | 9321 |
| 74 | Calhoun County | 9181 |
| 75 | Humboldt County | 8940 |
| 76 | Howard County | 8913 |
| 77 | Louisa County | 8764 |
| 78 | Davis County | 8692 |
| 79 | Franklin County | 8641 |
| 80 | Greene County | 8481 |
| 81 | Palo Alto County | 8435 |
| 82 | Monona County | 8262 |
| 83 | Emmet County | 8230 |
| 84 | Lucas County | 8226 |
| 85 | Clarke County | 7733 |
| 86 | Decatur County | 7376 |
| 87 | Monroe County | 7339 |
| 88 | Worth County | 7024 |
| 89 | Van Buren County | 6899 |
| 90 | Adair County | 6767 |
| 91 | Fremont County | 6572 |
| 92 | Ida County | 6571 |
| 93 | Pocahontas County | 6340 |
| 94 | Wayne County | 6235 |
| 95 | Taylor County | 5514 |
| 96 | Osceola County | 5385 |
| 97 | Audubon County | 5360 |
| 98 | Ringgold County | 4803 |
| 99 | Adams County | 3532 |
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