RANKING · 2020 CENSUS · 20 SHOWN OF 20

Highest Iranian population share, Iowa counties · 2020

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 20 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

01Appanoose County, IAIA12,0770.2%–

02Johnson County, IAIA160,0440.1%–

03Guthrie County, IAIA10,7820.1%–

04Story County, IAIA101,2910.1%–

05Mahaska County, IAIA21,8800.1%–

06Adair County, IAIA7,4030.1%–

07Black Hawk County, IAIA131,5320.1%–

08Winneshiek County, IAIA19,7330.1%–

09Emmet County, IAIA9,1070.0%–

10Dubuque County, IAIA99,3810.0%–

11Scott County, IAIA175,2590.0%–

12Lee County, IAIA32,3060.0%–

13Pottawattamie County, IAIA92,9960.0%–

14Warren County, IAIA57,3310.0%–

15Crawford County, IAIA16,2370.0%–

16Hardin County, IAIA16,4550.0%–

17Poweshiek County, IAIA18,3680.0%–

18Polk County, IAIA516,5460.0%–

19Woodbury County, IAIA106,6490.0%–

20Linn County, IAIA232,0280.0%–

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