Ranking of Iowa Counties By Non-Hispanic White Population in 2020

Updated on August 12, 2024.

Based on the US Census Vintage data estimates, in 2020, among all Iowa counties, Polk County had the highest number of people who identified their ethnicity as Non-Hispanic White (372.60K), followed by Linn County (194.27K), and Scott County (138.29K).

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.

See this for other years:
Ranking of Iowa Counties By Non-Hispanic White Population in 2020
Polk
372.60K
Linn
194.27K
Scott
138.29K
Johnson
117.28K
Black Hawk
104.72K
Dubuque
88.93K
Dallas
84.33K
Story
81.34K
Pottawattamie
81.20K
Woodbury
74.19K
Ranking of Iowa Counties By Non-Hispanic White Population in 2020
Rank
County
Non-Hispanic White Population
1 Polk County 372,598
2 Linn County 194,266
3 Scott County 138,293
4 Johnson County 117,281
5 Black Hawk County 104,722
6 Dubuque County 88,933
7 Dallas County 84,329
8 Story County 81,336
9 Pottawattamie County 81,203
10 Woodbury County 74,185
11 Warren County 49,175
12 Clinton County 42,071
13 Cerro Gordo County 38,487
14 Jasper County 35,046
15 Des Moines County 33,590
16 Muscatine County 33,042
17 Webster County 31,934
18 Marion County 31,452
19 Lee County 30,503
20 Sioux County 30,197
21 Wapello County 27,936
22 Marshall County 27,851
23 Boone County 25,130
24 Benton County 24,439
25 Bremer County 23,556
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