Ranking of Iowa Counties By Population with Iranian Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 991 people in Iowa with Iranian ancestry. Among all Iowa counties, Johnson County had the highest population with Iranian ancestry (243), followed by Story County (232), and Black Hawk County (205).

The chart and table below shows the top 10 counties with high number of people with Iranian ancestry.

You can see similar information for other states and for other ancestry groups in Iowa.

Data Source: US Census Bureau.
Ranking of Iowa Counties By Population with Iranian Ancestry in 2021
Johnson County
Story County
Black Hawk County
Scott County
Dubuque County
Polk County
Appanoose County
Mahaska County
Guthrie County
Clinton County
Ranking of Iowa Counties By Population with Iranian Ancestry in 2021
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Rank County Population
1 Johnson County 243
2 Story County 232
3 Black Hawk County 205
4 Scott County 82
5 Dubuque County 41
6 Polk County 37
7 Appanoose County 25
7 Mahaska County 25
8 Guthrie County 20
9 Clinton County 17
10 Pottawattamie County 14
11 Woodbury County 11
12 Lee County 9
13 Winneshiek County 8
14 Emmet County 5
14 Jasper County 5
15 Allamakee County 4
16 Crawford County 3
16 Delaware County 3
17 Hardin County 2