RANKING · 2024 ACS · 28 SHOWN OF 28

Highest Brazilian population share, Iowa counties

Iowa counties ranked by the share of all residents who are Brazilian ancestry (2024 American Community Survey). A concentration measure: Brazilian residents as a percentage of total population. This list covers the 28 counties in Iowa that qualify, ranked against each other statewide.

Brazilian 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

Highest Brazilian population share by state

RANKPLACESTATEPOPBRAZILIAN SHAREVS 2010

01Story County, IAIA101,2910.3%+0.3 pts

02Jefferson County, IAIA15,2910.3%–

03Cherokee County, IAIA11,3690.2%+0.0 pts

04Page County, IAIA14,8560.2%–

05Sac County, IAIA9,5250.2%–

06Poweshiek County, IAIA18,3680.1%+0.0 pts

07Audubon County, IAIA5,5090.1%–

08Dallas County, IAIA118,4570.1%–

09Washington County, IAIA22,6670.1%+0.1 pts

10Johnson County, IAIA160,0440.1%+0.0 pts

11Emmet County, IAIA9,1070.1%–

12Grundy County, IAIA12,3610.0%–

13Black Hawk County, IAIA131,5320.0%+0.0 pts

14Lyon County, IAIA12,3540.0%–

15Scott County, IAIA175,2590.0%−0.0 pts

16Marion County, IAIA34,1920.0%–

17Dubuque County, IAIA99,3810.0%–

18Wapello County, IAIA35,2100.0%−0.0 pts

19Linn County, IAIA232,0280.0%+0.0 pts

20Iowa County, IAIA16,5040.0%–

21Pottawattamie County, IAIA92,9960.0%–

22Polk County, IAIA516,5460.0%+0.0 pts

23Chickasaw County, IAIA11,6630.0%–

24O'Brien County, IAIA14,2200.0%–

25Clinton County, IAIA46,0020.0%−0.0 pts

26Delaware County, IAIA17,6740.0%–

27Henry County, IAIA19,3490.0%–

28Webster County, IAIA36,8380.0%–

SHOWING 1–28 OF 28

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UPDATED 2026-08-08 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES