Ranking of Illinois Counties By Percentage of Population with Cajun Ancestry in 2021
Updated on April 16, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, there were 448 people in Illinois with Cajun ancestry (0.004% of Illinois population). Among all Illinois counties, Jo Daviess County had the highest percentage of its population with Cajun ancestry (0.09%), followed by Iroquois County (0.07%), and Clinton County (0.04%).
The chart and table below shows the top 10 counties with high percentage of its population having Cajun ancestry.
You can see similar information for other states and for other ancestry groups in Illinois.
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Related Topics: Illinois ACS-5Yrs Estimates, 2021 Topic List.
Data Source: US Census Bureau.
Ranking of Illinois Counties By Percentage of Population with Cajun Ancestry in 2021
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| Rank | County | Percentage of Pop. (%) |
|---|---|---|
| 1 | Jo Daviess County | 0.09 |
| 2 | Iroquois County | 0.07 |
| 3 | Clinton County | 0.04 |
| 4 | Randolph County | 0.03 |
| 5 | Sangamon County | 0.02 |
| 5 | Winnebago County | 0.02 |
| 6 | DuPage County | 0.01 |
| 6 | Kane County | 0.01 |
| 6 | Logan County | 0.01 |
| 6 | McLean County | 0.01 |
| 6 | Ogle County | 0.01 |
| 7 | Knox County | 0.004 |
| 8 | McHenry County | 0.003 |
| 8 | Will County | 0.003 |
| 9 | Lake County | 0.002 |
| 9 | Madison County | 0.002 |
| 10 | Cook County | 0.001 |
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