RANKING · 2010 CENSUS · 42 SHOWN OF 42

Largest Colombian population, Illinois counties · 2010

Illinois counties ranked by the number of residents who are Colombian origin, from the 2010 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 42 counties in Illinois that qualify, ranked against each other statewide. The median across all 42 is 29.

Colombian Americans: full group profile →

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SAME RANKING BYCities States Metros

RELATEDLargest Mexican population Highest Mexican population share Largest Puerto Rican population Highest Puerto Rican population share Largest Cuban population Highest Cuban population share

YEAR2010 2020 2024

RANKPLACESTATEPOPCOLOMBIAN POPULATIONVS –

01Cook County, ILIL5,194,62512,645–

02DuPage County, ILIL934,2982,370–

03Lake County, ILIL719,3392,004–

04Will County, ILIL712,253839–

05Kane County, ILIL525,757631–

06Winnebago County, ILIL283,674370–

07McHenry County, ILIL317,751312–

08Macon County, ILIL99,300265–

09Knox County, ILIL47,767255–

10St. Clair County, ILIL250,708179–

11Champaign County, ILIL209,972123–

12McLean County, ILIL171,41996–

13Kendall County, ILIL145,47076–

14DeKalb County, ILIL101,83573–

15Henry County, ILIL48,09570–

16LaSalle County, ILIL107,77356–

17Kankakee County, ILIL105,52551–

18Madison County, ILIL263,11046–

19Coles County, ILIL46,60740–

20Williamson County, ILIL67,22533–

21Rock Island County, ILIL141,86929–

22Sangamon County, ILIL194,17029–

23Livingston County, ILIL35,05724–

24Whiteside County, ILIL54,12124–

25Peoria County, ILIL178,55321–

26Adams County, ILIL64,26720–

27McDonough County, ILIL25,91616–

28Jackson County, ILIL52,50115–

29Warren County, ILIL16,22215–

30Carroll County, ILIL15,41913–

31Ogle County, ILIL51,39911–

32Stephenson County, ILIL43,22011–

33Fulton County, ILIL32,90110–

34Perry County, ILIL20,16010–

35Wabash County, ILIL10,90710–

36Christian County, ILIL33,4439–

37Mason County, ILIL12,4118–

38Menard County, ILIL11,8638–

39Tazewell County, ILIL130,0498–

40Iroquois County, ILIL26,1507–

41Clinton County, ILIL37,1285–

42Marion County, ILIL36,3824–

SHOWING 1–42 OF 42

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS