Ranking of Iowa Counties By Population with Nigerian Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 1.52K people in Iowa with Nigerian ancestry. Among all Iowa counties, Polk County had the highest population with Nigerian ancestry (557), followed by Linn County (394), and Johnson County (294).

The chart and table below shows the top 10 counties with high number of people with Nigerian ancestry.

You can see similar information for other states and for other ancestry groups in Iowa.

Data Source: US Census Bureau.
Ranking of Iowa Counties By Population with Nigerian Ancestry in 2021
Polk County
Linn County
Johnson County
Warren County
Scott County
Henry County
Story County
Woodbury County
Marshall County
Decatur County
Ranking of Iowa Counties By Population with Nigerian Ancestry in 2021
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Rank County Population
1 Polk County 557
2 Linn County 394
3 Johnson County 294
4 Warren County 74
5 Scott County 58
6 Henry County 50
7 Story County 19
8 Woodbury County 16
9 Marshall County 10
10 Decatur County 8
11 Wayne County 7
12 Cass County 6
12 Mahaska County 6
12 Pottawattamie County 6
13 Bremer County 5
13 Hamilton County 5
14 Dubuque County 3
15 Black Hawk County 2
16 Buena Vista County 1
16 Jackson County 1
16 Van Buren County 1