RANKING · 2024 ACS · 38 SHOWN OF 38

Largest Brazilian population, Illinois counties

Illinois counties ranked by the number of residents who are Brazilian ancestry, from the 2024 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 38 counties in Illinois that qualify, ranked against each other statewide. The median across all 38 is 25. Biggest climber in the top 100 since 2020: Fulton County, IL, up 9 places to #17.

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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, ILIL5,194,6254,111+57%

02Lake County, ILIL719,339840+191%

03DuPage County, ILIL934,298477−54%

04▲3Champaign County, ILIL209,972298−13%

05▲1Will County, ILIL712,253279−4%

06▼2Kane County, ILIL525,757135−48%

07▲2Winnebago County, ILIL283,674126+271%

08McHenry County, ILIL317,751117−47%

09Coles County, ILIL46,60782–

10▲7St. Clair County, ILIL250,70861+307%

11Kankakee County, ILIL105,52556+124%

12▲2Sangamon County, ILIL194,17046+142%

13Clark County, ILIL15,11434–

14▲7Adams County, ILIL64,26733+560%

15▲7Menard County, ILIL11,86329–

16Johnson County, ILIL13,36328+75%

17▲9Fulton County, ILIL32,90126–

18▲2Macon County, ILIL99,30026+136%

19▼3Rock Island County, ILIL141,86925−31%

20Knox County, ILIL47,76724–

21▼11McLean County, ILIL171,41923+77%

22Ogle County, ILIL51,39922–

23▲4LaSalle County, ILIL107,77321+11%

24De Witt County, ILIL15,11819–

25▼14Peoria County, ILIL178,55316−89%

26Henry County, ILIL48,09512–

27Monroe County, ILIL34,84011–

28▼9Kendall County, ILIL145,47010+11%

29McDonough County, ILIL25,9169–

30▼12Jackson County, ILIL52,5018–

31▼19DeKalb County, ILIL101,8357–

32Douglas County, ILIL19,8807–

33Tazewell County, ILIL130,0496–

34▼10Bureau County, ILIL32,5104–

35Livingston County, ILIL35,0573–

36▼4Calhoun County, ILIL4,3002−60%

37White County, ILIL13,2501–

38▼5Williamson County, ILIL67,2251–

SHOWING 1–38 OF 38

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES