RANKING · 2020 CENSUS · 22 SHOWN OF 22

Largest Brazilian population, Iowa counties · 2020

Iowa counties ranked by the number of residents who are Brazilian ancestry, from the 2020 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 22 counties in Iowa that qualify, ranked against each other statewide. The median across all 22 is 15.

Brazilian Americans: full group profile →

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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

RANKPLACESTATEPOPBRAZILIAN POPULATIONVS 2010

01Story County, IAIA101,291353+2106%

02Dallas County, IAIA118,457155–

03Polk County, IAIA516,546137+389%

04Johnson County, IAIA160,04496+57%

05Linn County, IAIA232,02842+500%

06Floyd County, IAIA14,90137–

07Page County, IAIA14,85623–

08Muscatine County, IAIA41,85322−69%

09Pottawattamie County, IAIA92,99619–

10Sioux County, IAIA36,77415–

11Wapello County, IAIA35,210150%

12Ida County, IAIA6,77714–

13Poweshiek County, IAIA18,36812−37%

14Jefferson County, IAIA15,29112–

15Hardin County, IAIA16,4559–

16Marion County, IAIA34,1929–

17Clinton County, IAIA46,0027−46%

18Clay County, IAIA16,2026–

19Scott County, IAIA175,2595−96%

20Osceola County, IAIA5,9803–

21Mitchell County, IAIA10,6502–

22Henry County, IAIA19,3491–

SHOWING 1–22 OF 22

Download CSV (full list, 22 rows)

UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS