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

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 7.05K people in Illinois with Brazilian ancestry (0.06% of Illinois population). Among all Illinois counties, Boone County had the highest percentage of its population with Brazilian ancestry (0.56%), followed by Piatt County (0.26%), and Menard County (0.24%).

The chart and table below shows the top 10 counties with high percentage of its population having Brazilian 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 Brazilian Ancestry in 2021
Boone County
Piatt County
Menard County
Coles County
Crawford County
Champaign County
Lake County
Cook County
Jackson County
DeKalb County
Ranking of Illinois Counties By Percentage of Population with Brazilian Ancestry in 2021
0 of 0
Rank County Percentage of Pop. (%)
1 Boone County 0.56
2 Piatt County 0.26
3 Menard County 0.24
4 Coles County 0.12
4 Crawford County 0.12
5 Champaign County 0.10
6 Lake County 0.09
7 Cook County 0.08
7 Jackson County 0.08
8 DeKalb County 0.07
8 McHenry County 0.07
8 Peoria County 0.07
9 Bureau County 0.05
9 DuPage County 0.05
9 Franklin County 0.05
9 Winnebago County 0.05
10 Adams County 0.04
11 McDonough County 0.03
11 Rock Island County 0.03
11 Sangamon County 0.03
12 Calhoun County 0.02
12 Fulton County 0.02
12 Hancock County 0.02
12 Kendall County 0.02
12 LaSalle County 0.02
12 McLean County 0.02
12 Macon County 0.02
12 Ogle County 0.02
12 St. Clair County 0.02
12 Will County 0.02
13 Kane County 0.01
13 White County 0.01
14 Williamson County 0.003