Iowa White Alone Population By County in Census 2020

Updated on February 11, 2023.

According to the data from the US 2020 decennial Census, in April 2020, there were 2,694,521 people in Iowa who identified their race as White Alone, which is 84.46% of the total population of Iowa. Polk County had the highest number of people who identify as White Alone (373,903), followed by Linn County (190,644), and Scott County (138,752). On the other hand, the three counties with the least number of people who identify as White Alone were: Adams County (3,531), Ringgold County (4,469), and Taylor County (5,412).

In terms of the percentage of each county's total population, Davis County had the highest percentage, with 96.56% of its population identifying their race as White Alone, followed by Butler County (96.46%), and Audubon County (96.39%).

You can see similar information for other states and also for the United States by state. You can also see similar information for other racial groups as well as the different ethnicities in Iowa.

Hover over or click on the counties to see the number and percentage of each county's population that identify as White Alone. The data can also be filtered, sorted, and explored further in a table below.

Iowa White Alone Population By County in Census 2020
Iowa White Alone Population By County in Census 2020
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County White Alone Population % of County Population
Adair County 7149 95.37
Adams County 3531 95.33
Allamakee County 12621 89.76
Appanoose County 11690 94.91
Audubon County 5469 96.39
Benton County 24258 94.85
Black Hawk County 102832 78.41
Boone County 24943 93.37
Bremer County 23597 94.43
Buchanan County 19696 95.77
Buena Vista County 12597 60.50
Butler County 13827 96.46
Calhoun County 9357 94.26
Carroll County 19543 94.14
Cass County 12413 94.56
Cedar County 17472 94.42
Cerro Gordo County 38618 89.55
Cherokee County 10831 92.91
Chickasaw County 11252 93.67
Clarke County 8231 84.44
Clay County 15230 92.96
Clayton County 16229 95.22
Clinton County 41771 89.91
Crawford County 11262 68.15
Dallas County 83359 83.63
Davis County 8797 96.56
Decatur County 7081 92.62
Delaware County 16787 95.99
Des Moines County 33164 85.23
Dickinson County 16819 95.01
Dubuque County 88314 88.97
Emmet County 8356 89.01
Fayette County 18271 93.65
Floyd County 14094 90.19
Franklin County 8366 83.50
Fremont County 6201 93.88
Greene County 8258 94.15
Grundy County 11836 96.00
Guthrie County 10032 94.44
Hamilton County 13079 86.97
Hancock County 9959 92.26
Hardin County 15465 91.63
Harrison County 13922 95.47
Henry County 17990 87.83
Howard County 8940 94.41
Humboldt County 8920 92.95
Ida County 6662 95.10
Iowa County 15571 93.45
Jackson County 18461 94.75
Jasper County 34866 92.21
Jefferson County 13565 86.61
Johnson County 117090 76.60
Jones County 19244 93.21
Keokuk County 9547 95.16
Kossuth County 13916 93.85
Lee County 30336 90.41
Linn County 190644 82.78
Louisa County 8834 81.52
Lucas County 8207 95.05
Lyon County 11270 94.44
Madison County 15609 94.33
Mahaska County 20453 92.17
Marion County 31156 93.24
Marshall County 29579 73.75
Mills County 13504 93.23
Mitchell County 10107 95.67
Monona County 8141 93.03
Monroe County 7225 95.35
Montgomery County 9698 93.88
Muscatine County 34598 80.02
O'Brien County 12825 90.43
Osceola County 5485 88.58
Page County 13858 91.11
Palo Alto County 8465 94.10
Plymouth County 23289 90.63
Pocahontas County 6459 91.26
Polk County 373903 75.94
Pottawattamie County 81329 86.83
Poweshiek County 17209 92.21
Ringgold County 4469 95.84
Sac County 9271 94.47
Scott County 138752 79.44
Shelby County 10990 93.56
Sioux County 30745 85.71
Story County 81046 82.25
Tama County 13658 79.71
Taylor County 5412 91.79
Union County 11365 93.63
Van Buren County 6923 96.11
Wapello County 28180 79.52
Warren County 48539 92.63
Washington County 20374 90.29
Wayne County 6261 96.37
Webster County 32108 86.78
Winnebago County 9665 90.51
Winneshiek County 18852 93.93
Woodbury County 76794 72.49
Worth County 7041 94.60
Wright County 10542 81.45