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 (2023 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.

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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 2000

01Monroe County, IAIA7,4061.1%–

02Decatur County, IAIA7,6550.4%–

03Clay County, IAIA16,2020.2%–

04Scott County, IAIA175,2590.2%–

05Delaware County, IAIA17,6740.2%–

06Linn County, IAIA232,0280.1%–

07Wayne County, IAIA6,7380.1%–

08Polk County, IAIA516,5460.1%–

09Buena Vista County, IAIA20,4490.1%–

10Henry County, IAIA19,3490.1%–

11Bremer County, IAIA25,2960.1%–

12Mahaska County, IAIA21,8800.1%–

13Cedar County, IAIA18,3590.1%–

14Clinton County, IAIA46,0020.1%–

15Black Hawk County, IAIA131,5320.1%–

16Johnson County, IAIA160,0440.1%–

17Poweshiek County, IAIA18,3680.1%–

18Taylor County, IAIA5,8350.1%–

19Calhoun County, IAIA9,5620.1%–

20Boone County, IAIA26,7990.0%–

21Marion County, IAIA34,1920.0%–

22Warren County, IAIA57,3310.0%–

23Webster County, IAIA36,8380.0%–

24Des Moines County, IAIA38,0770.0%–

25Story County, IAIA101,2910.0%–

26Pottawattamie County, IAIA92,9960.0%–

27Woodbury County, IAIA106,6490.0%–

28Buchanan County, IAIA20,8830.0%–

29Shelby County, IAIA11,6890.0%–

30Allamakee County, IAIA14,2380.0%–

31Dubuque County, IAIA99,3810.0%–

32Jasper County, IAIA38,1530.0%–

SHOWING 1–32 OF 32

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