RANKING · 2024 ACS · 22 SHOWN OF 22

Highest Iranian population share, Iowa counties

Iowa counties ranked by the share of all residents who are Iranian ancestry (2024 American Community Survey). A concentration measure: Iranian residents as a percentage of total population. This list covers the 22 counties in Iowa that qualify, ranked against each other statewide. The median across all 22 is 0.0%. Biggest climber in the top 100 since 2020: Poweshiek County, IA, up 12 places to #5.

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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 Iranian population share by state

RANKPLACESTATEPOPIRANIAN SHAREVS 2010

01▲3Story County, IAIA101,2910.3%+0.3 pts

02Johnson County, IAIA160,0440.2%−0.1 pts

03▲2Mahaska County, IAIA21,8800.1%–

04▲3Black Hawk County, IAIA131,5320.1%0.0 pts

05▲12Poweshiek County, IAIA18,3680.1%–

06Dickinson County, IAIA18,0770.1%–

07Dallas County, IAIA118,4570.1%–

08Calhoun County, IAIA9,5620.1%–

09▲2Scott County, IAIA175,2590.0%0.0 pts

10▲10Linn County, IAIA232,0280.0%0.0 pts

11▼1Dubuque County, IAIA99,3810.0%–

12Clinton County, IAIA46,0020.0%–

13Allamakee County, IAIA14,2380.0%−0.1 pts

14▲1Crawford County, IAIA16,2370.0%–

15▲3Polk County, IAIA516,5460.0%0.0 pts

16Marion County, IAIA34,1920.0%–

17Jasper County, IAIA38,1530.0%–

18▼5Pottawattamie County, IAIA92,9960.0%0.0 pts

19Clayton County, IAIA16,8450.0%–

20Benton County, IAIA26,0040.0%–

21Delaware County, IAIA17,6740.0%–

22▼21Appanoose County, IAIA12,0770.0%–

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