Ranking of Iowa Counties By Population with Cajun Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 100 people in Iowa with Cajun ancestry. Among all Iowa counties, Polk County had the highest population with Cajun ancestry (17), followed by Black Hawk County (11), and Lee County (11).

The chart and table below shows the top 10 counties with high number of people with Cajun 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 Cajun Ancestry in 2021
Polk County
Black Hawk County
Lee County
O'Brien County
Clay County
Grundy County
Lucas County
Woodbury County
Marshall County
Pottawattamie County
Ranking of Iowa Counties By Population with Cajun Ancestry in 2021
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Rank County Population
1 Polk County 17
2 Black Hawk County 11
2 Lee County 11
2 O'Brien County 11
3 Clay County 9
4 Grundy County 8
4 Lucas County 8
4 Woodbury County 8
5 Marshall County 6
5 Pottawattamie County 6
6 Ida County 5