RANKING · 2024 ACS · 32 SHOWN OF 32

Highest Jamaican population share, Iowa counties

Iowa counties ranked by the share of all residents who are Jamaican ancestry (2024 American Community Survey). A concentration measure: Jamaican residents as a percentage of total population. This list covers the 32 counties in Iowa that qualify, ranked against each other statewide. The median across all 32 is 0.1%. Biggest climber in the top 100 since 2020: Scott County, IA, up 19 places to #4.

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SAME RANKING BYCities States Metros

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

YEAR2010 2020 2024

RANKPLACESTATEPOPJAMAICAN SHAREVS 2010

01Monroe County, IAIA7,4061.1%–

02Decatur County, IAIA7,6550.4%+0.3 pts

03Clay County, IAIA16,2020.2%–

04▲19Scott County, IAIA175,2590.2%+0.2 pts

05Delaware County, IAIA17,6740.2%–

06▲3Linn County, IAIA232,0280.1%+0.1 pts

07Wayne County, IAIA6,7380.1%–

08▲8Polk County, IAIA516,5460.1%+0.1 pts

09Buena Vista County, IAIA20,4490.1%–

10▼4Henry County, IAIA19,3490.1%–

11Bremer County, IAIA25,2960.1%–

12▼8Mahaska County, IAIA21,8800.1%–

13Cedar County, IAIA18,3590.1%–

14Clinton County, IAIA46,0020.1%–

15▲2Black Hawk County, IAIA131,5320.1%0.0 pts

16▼5Johnson County, IAIA160,0440.1%0.0 pts

17Poweshiek County, IAIA18,3680.1%–

18Taylor County, IAIA5,8350.1%–

19Calhoun County, IAIA9,5620.1%–

20▼13Boone County, IAIA26,7990.0%−0.1 pts

21Marion County, IAIA34,1920.0%–

22Warren County, IAIA57,3310.0%–

23▼15Webster County, IAIA36,8380.0%0.0 pts

24Des Moines County, IAIA38,0770.0%–

25▼5Story County, IAIA101,2910.0%–

26Pottawattamie County, IAIA92,9960.0%–

27▼14Woodbury County, IAIA106,6490.0%0.0 pts

28Buchanan County, IAIA20,8830.0%–

29▼28Shelby County, IAIA11,6890.0%–

30Allamakee County, IAIA14,2380.0%–

31▼16Dubuque County, IAIA99,3810.0%0.0 pts

32▼18Jasper County, IAIA38,1530.0%0.0 pts

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