RANKING · 2020 CENSUS · 22 SHOWN OF 22

Largest Nigerian population, Iowa counties · 2020

Iowa counties ranked by the number of residents who are Nigerian ancestry, from the 2020 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 22 counties in Iowa that qualify, ranked against each other statewide. The median across all 22 is 9.

Nigerian Americans: full group profile →

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RELATEDLargest American population Highest American population share Largest Arab population Highest Arab population share Largest Egyptian population Highest Egyptian population share

YEAR2010 2020 2024

RANKPLACESTATEPOPNIGERIAN POPULATIONVS 2010

01Johnson County, IAIA160,044394+7780%

02Polk County, IAIA516,546349+82%

03Muscatine County, IAIA41,853116–

04Scott County, IAIA175,259105+228%

05Warren County, IAIA57,33187–

06Story County, IAIA101,29122−84%

07Henry County, IAIA19,34921+950%

08Clinton County, IAIA46,00220+11%

09Dubuque County, IAIA99,38111–

10Mahaska County, IAIA21,8809–

11Woodbury County, IAIA106,6499−53%

12Pottawattamie County, IAIA92,9966–

13Sioux County, IAIA36,7746–

14Wayne County, IAIA6,7386–

15Webster County, IAIA36,8386–

16Bremer County, IAIA25,2965–

17Black Hawk County, IAIA131,5322−98%

18Buena Vista County, IAIA20,4491–

19Jackson County, IAIA19,2881–

20Linn County, IAIA232,0281−88%

21Pocahontas County, IAIA6,8191–

22Van Buren County, IAIA7,1311–

SHOWING 1–22 OF 22

Download CSV (full list, 22 rows)

UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS