RANKING · 2020 CENSUS · 22 SHOWN OF 22

Highest Nigerian population share, Iowa counties · 2020

Iowa counties ranked by the share of all residents who are Nigerian ancestry (2023 American Community Survey). A concentration measure: Nigerian residents as a percentage of total population. This list covers the 22 counties in Iowa that qualify, ranked against each other statewide.

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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 SHAREVS 2000

01Muscatine County, IAIA41,8530.3%–

02Johnson County, IAIA160,0440.3%–

03Warren County, IAIA57,3310.2%–

04Henry County, IAIA19,3490.1%–

05Wayne County, IAIA6,7380.1%–

06Polk County, IAIA516,5460.1%–

07Scott County, IAIA175,2590.1%–

08Clinton County, IAIA46,0020.0%–

09Mahaska County, IAIA21,8800.0%–

10Story County, IAIA101,2910.0%–

11Bremer County, IAIA25,2960.0%–

12Sioux County, IAIA36,7740.0%–

13Webster County, IAIA36,8380.0%–

14Pocahontas County, IAIA6,8190.0%–

15Van Buren County, IAIA7,1310.0%–

16Dubuque County, IAIA99,3810.0%–

17Woodbury County, IAIA106,6490.0%–

18Pottawattamie County, IAIA92,9960.0%–

19Jackson County, IAIA19,2880.0%–

20Buena Vista County, IAIA20,4490.0%–

21Black Hawk County, IAIA131,5320.0%–

22Linn County, IAIA232,0280.0%–

SHOWING 1–22 OF 22

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UPDATED 2026-06-06 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES