Iowa Non-Hispanic White alone Population By County in 2020

Updated on August 2, 2024.

Based on the US Census Vintage data estimates, in 2020, there were 2,690,606 people that identified as Non-Hispanic White alone in Iowa and they represented 84.32% of the total population of Iowa in 2020. Polk County had the highest number of Non-Hispanic White alone population (372,598), followed by Linn County (194,266), and Scott County (138,293). On the other hand, Adams County had the lowest number of Non-Hispanic White alone (3,560), followed by Ringgold County (4,442), and Taylor County (5,328).

When it comes to the percentage of each county's population that identified as Non-Hispanic White alone, Grundy County had the highest percentage (96.55%), followed by Davis County (96.49%), and Mitchell County (96.43%).

You can see similar information for other ethnicity and racial groups in Iowa.

You can also see similar information for other states and also by state for the United States.

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

See this for other years:
Iowa Non-Hispanic White alone Population By County in 2020
Iowa Non-Hispanic White alone Population By County in 2020
County
Non-Hispanic White alone Population
% of County Population
Polk 372,598 75.57
Linn 194,266 84.31
Scott 138,293 79.2
Johnson 117,281 76.63
Black Hawk 104,722 79.91
Dubuque 88,933 89.55
Dallas 84,329 83.88
Story 81,336 82.45
Pottawattamie 81,203 86.69
Woodbury 74,185 70.04
Warren 49,175 93.51
Clinton 42,071 90.62
Cerro Gordo 38,487 89.46
Jasper 35,046 92.69
Des Moines 33,590 86.52
Muscatine 33,042 76.59
Webster 31,934 86.32
Marion 31,452 94.13
Lee 30,503 90.96
Sioux 30,197 84.15
Wapello 27,936 79.08
Marshall 27,851 69.46
Boone 25,130 94.13
Benton 24,439 95.66
Bremer 23,556 94.18
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