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. The median across all 28 is 0.0%. Biggest climber in the top 100 since 2020: Scott County, IA, up 7 places to #15.

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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

02▲4Jefferson County, IAIA15,2910.3%–

03Cherokee County, IAIA11,3690.2%0.0 pts

04▲1Page County, IAIA14,8560.2%–

05Sac County, IAIA9,5250.2%–

06▲1Poweshiek County, IAIA18,3680.1%0.0 pts

07Audubon County, IAIA5,5090.1%–

08▼4Dallas County, IAIA118,4570.1%–

09Washington County, IAIA22,6670.1%+0.1 pts

10▼2Johnson 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%–

15▲7Scott County, IAIA175,2590.0%0.0 pts

16Marion County, IAIA34,1920.0%–

17Dubuque County, IAIA99,3810.0%–

18▼5Wapello County, IAIA35,2100.0%0.0 pts

19Linn County, IAIA232,0280.0%0.0 pts

20Iowa County, IAIA16,5040.0%–

21▼4Pottawattamie County, IAIA92,9960.0%–

22▼7Polk County, IAIA516,5460.0%0.0 pts

23Chickasaw County, IAIA11,6630.0%–

24O'Brien County, IAIA14,2200.0%–

25▼5Clinton County, IAIA46,0020.0%0.0 pts

26Delaware County, IAIA17,6740.0%–

27▼6Henry County, IAIA19,3490.0%–

28Webster County, IAIA36,8380.0%–

SHOWING 1–28 OF 28

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