RANKING · 2020 CENSUS · 33 SHOWN OF 33

Largest Brazilian population, Illinois counties · 2020

Illinois counties ranked by the number of residents who are Brazilian ancestry, from the 2020 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 33 counties in Illinois that qualify, ranked against each other statewide.

Brazilian Americans: full group profile →

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SAME RANKING BYCities States Metros

RELATEDLargest American population Highest American population share Largest Arab population Highest Arab population share Largest Egyptian population Highest Egyptian population share

YEAR2010 2020 2024

RANKPLACESTATEPOPBRAZILIAN POPULATIONVS 2010

01Cook County, ILIL5,194,6253,681+41%

02Lake County, ILIL719,339512+77%

03DuPage County, ILIL934,298405−61%

04Kane County, ILIL525,757395+51%

05Boone County, ILIL53,568342+1610%

06Will County, ILIL712,253270−7%

07Champaign County, ILIL209,972197−42%

08McHenry County, ILIL317,751174−21%

09Winnebago County, ILIL283,674124+265%

10McLean County, ILIL171,419103+692%

11Peoria County, ILIL178,55396−33%

12DeKalb County, ILIL101,83565–

13Madison County, ILIL263,11058−38%

14Sangamon County, ILIL194,17050+163%

15Piatt County, ILIL16,79136–

16Rock Island County, ILIL141,86935−3%

17St. Clair County, ILIL250,70833+120%

18Jackson County, ILIL52,50130–

19Kendall County, ILIL145,47029+222%

20Macon County, ILIL99,30021+91%

21Adams County, ILIL64,26720+300%

22Menard County, ILIL11,86319–

23Lee County, ILIL32,91417–

24Bureau County, ILIL32,51015–

25Franklin County, ILIL36,91615–

26Fulton County, ILIL32,90114–

27LaSalle County, ILIL107,77311−42%

28Crawford County, ILIL18,6489–

29McDonough County, ILIL25,9168–

30Mercer County, ILIL15,2297–

31Hancock County, ILIL16,8035–

32Calhoun County, ILIL4,3002−60%

33Williamson County, ILIL67,2251–

SHOWING 1–33 OF 33

Download CSV (full list, 33 rows)

UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS