Ranking of Illinois Counties By 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. Among all Illinois counties, Cook County had the highest population with Brazilian ancestry (4.16K), followed by Lake County (606), and DuPage County (444).

The chart and table below shows the top 10 counties with high number of people with 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 Population with Brazilian Ancestry in 2021
Cook County
Lake County
DuPage County
Boone County
McHenry County
Champaign County
Will County
Winnebago County
Peoria County
DeKalb County
Ranking of Illinois Counties By Population with Brazilian Ancestry in 2021
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Rank County Population
1 Cook County 4160
2 Lake County 606
3 DuPage County 444
4 Boone County 303
5 McHenry County 214
6 Champaign County 201
7 Will County 167
8 Winnebago County 149
9 Peoria County 126
10 DeKalb County 75
11 Sangamon County 67
12 Coles County 59
13 Kane County 56
14 St. Clair County 46
15 Rock Island County 45
16 Jackson County 43
16 Piatt County 43
17 Menard County 30
18 McLean County 27
19 Adams County 25
20 LaSalle County 24
21 Crawford County 22
21 Kendall County 22
21 Macon County 22
22 Franklin County 20
23 Bureau County 16
24 Ogle County 12
25 Fulton County 7
25 McDonough County 7
26 Hancock County 4
27 Williamson County 2
28 Calhoun County 1
28 White County 1