RANKING · 2020 CENSUS · 20 SHOWN OF 20

Largest Iranian population, Iowa counties · 2020

Iowa counties ranked by the number of residents who are Iranian 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 20 counties in Iowa that qualify, ranked against each other statewide.

Iranian 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

RANKPLACESTATEPOPIRANIAN POPULATIONVS 2010

01Johnson County, IAIA160,044219−19%

02Black Hawk County, IAIA131,532110+214%

03Story County, IAIA101,291106+172%

04Scott County, IAIA175,25953−61%

05Dubuque County, IAIA99,38137–

06Polk County, IAIA516,54636−49%

07Appanoose County, IAIA12,07728–

08Mahaska County, IAIA21,88023–

09Pottawattamie County, IAIA92,99622+120%

10Guthrie County, IAIA10,78215–

11Linn County, IAIA232,02813−88%

12Winneshiek County, IAIA19,73311–

13Warren County, IAIA57,33110–

14Lee County, IAIA32,3069–

15Woodbury County, IAIA106,6497–

16Adair County, IAIA7,4037–

17Emmet County, IAIA9,1074–

18Crawford County, IAIA16,2373–

19Hardin County, IAIA16,4552–

20Poweshiek County, IAIA18,3682–

SHOWING 1–20 OF 20

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS