RANKING · 2024 ACS · 33 SHOWN OF 33

Highest Nigerian population share, Iowa counties

Iowa counties ranked by the share of all residents who are Nigerian ancestry (2024 American Community Survey). A concentration measure: Nigerian residents as a percentage of total population. This list covers the 33 counties in Iowa that qualify, ranked against each other statewide. The median across all 33 is 0.1%. Biggest climber in the top 100 since 2020: Linn County, IA, up 17 places to #5.

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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 2010

01Decatur County, IAIA7,6550.5%–

02Montgomery County, IAIA10,0020.4%–

03Emmet County, IAIA9,1070.4%–

04▼1Warren County, IAIA57,3310.3%–

05▲17Linn County, IAIA232,0280.2%+0.2 pts

06Des Moines County, IAIA38,0770.2%–

07▼1Polk County, IAIA516,5460.2%+0.1 pts

08Wapello County, IAIA35,2100.2%–

09▼7Johnson County, IAIA160,0440.2%+0.1 pts

10Franklin County, IAIA9,8680.2%–

11▼1Story County, IAIA101,2910.1%0.0 pts

12Page County, IAIA14,8560.1%–

13▼5Clinton County, IAIA46,0020.1%+0.1 pts

14▲4Pottawattamie County, IAIA92,9960.1%–

15Adams County, IAIA3,6170.1%–

16Boone County, IAIA26,7990.1%–

17▼4Webster County, IAIA36,8380.1%–

18Marshall County, IAIA39,8900.1%–

19Hamilton County, IAIA14,9440.1%–

20Washington County, IAIA22,6670.1%–

21▼10Bremer County, IAIA25,2960.1%–

22Appanoose County, IAIA12,0770.0%–

23▼6Woodbury County, IAIA106,6490.0%0.0 pts

24Dallas County, IAIA118,4570.0%–

25▼16Mahaska County, IAIA21,8800.0%–

26Lee County, IAIA32,3060.0%–

27Tama County, IAIA16,7960.0%–

28Cass County, IAIA12,9600.0%–

29▼13Dubuque County, IAIA99,3810.0%–

30▼23Scott County, IAIA175,2590.0%0.0 pts

31▼10Black Hawk County, IAIA131,5320.0%0.0 pts

32Carroll County, IAIA20,3030.0%–

33Cerro Gordo County, IAIA42,3720.0%–

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES