Ranking of Illinois Counties By Percentage of Population with Basque Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 420 people in Illinois with Basque ancestry (0.003% of Illinois population). Among all Illinois counties, Lee County had the highest percentage of its population with Basque ancestry (0.08%), followed by Jackson County (0.02%), and Cook County (0.01%).

The chart and table below shows the top 10 counties with high percentage of its population having Basque ancestry.

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

Data Source: US Census Bureau.
Ranking of Illinois Counties By Percentage of Population with Basque Ancestry in 2021
Lee County
Jackson County
Cook County
Kankakee County
Morgan County
DuPage County
McLean County
Bureau County
Sangamon County
McHenry County
Ranking of Illinois Counties By Percentage of Population with Basque Ancestry in 2021
0 of 0
Rank County Percentage of Pop. (%)
1 Lee County 0.08
2 Jackson County 0.02
3 Cook County 0.01
3 Kankakee County 0.01
3 Morgan County 0.01
4 DuPage County 0.004
4 McLean County 0.004
5 Bureau County 0.003
6 Sangamon County 0.002
7 McHenry County 0.001
7 Will County 0.001