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 (2023 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.

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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 2000

01Story County, IAIA101,2910.3%–

02Johnson County, IAIA160,0440.2%–

03Mahaska County, IAIA21,8800.1%–

04Black Hawk County, IAIA131,5320.1%–

05Poweshiek County, IAIA18,3680.1%–

06Dickinson County, IAIA18,0770.1%–

07Dallas County, IAIA118,4570.1%–

08Calhoun County, IAIA9,5620.1%–

09Scott County, IAIA175,2590.0%–

10Linn County, IAIA232,0280.0%–

11Dubuque County, IAIA99,3810.0%–

12Clinton County, IAIA46,0020.0%–

13Allamakee County, IAIA14,2380.0%–

14Crawford County, IAIA16,2370.0%–

15Polk County, IAIA516,5460.0%–

16Marion County, IAIA34,1920.0%–

17Jasper County, IAIA38,1530.0%–

18Pottawattamie County, IAIA92,9960.0%–

19Clayton County, IAIA16,8450.0%–

20Benton County, IAIA26,0040.0%–

21Delaware County, IAIA17,6740.0%–

22Appanoose County, IAIA12,0770.0%–

SHOWING 1–22 OF 22

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UPDATED 2026-06-06 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES