RANKING · 2020 CENSUS · 48 SHOWN OF 48

Largest Colombian population, Illinois counties · 2020

Illinois counties ranked by the number of residents who are Colombian origin, 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 48 counties in Illinois that qualify, ranked against each other statewide. The median across all 48 is 32.

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 2010

01Cook County, ILIL5,194,62515,663+24%

02DuPage County, ILIL934,2982,547+7%

03Lake County, ILIL719,3391,857−7%

04Kane County, ILIL525,7571,030+63%

05Will County, ILIL712,253962+15%

06McHenry County, ILIL317,751664+113%

07DeKalb County, ILIL101,835497+581%

08Champaign County, ILIL209,972371+202%

09McLean County, ILIL171,419223+132%

10Sangamon County, ILIL194,170178+514%

11Peoria County, ILIL178,553170+710%

12Winnebago County, ILIL283,674135−64%

13Logan County, ILIL27,182106–

14Madison County, ILIL263,110104+126%

15Tazewell County, ILIL130,04991+1038%

16Rock Island County, ILIL141,86990+210%

17Kankakee County, ILIL105,52583+63%

18St. Clair County, ILIL250,70857−68%

19Adams County, ILIL64,26746+130%

20Macon County, ILIL99,30043−84%

21LaSalle County, ILIL107,77338−32%

22Menard County, ILIL11,86334+325%

23Vermilion County, ILIL71,25934–

24Jackson County, ILIL52,50132+113%

25Iroquois County, ILIL26,15027+286%

26Grundy County, ILIL54,05226–

27Henry County, ILIL48,09526−63%

28Lee County, ILIL32,91423–

29Marion County, ILIL36,38222+450%

30Macoupin County, ILIL43,74816–

31White County, ILIL13,25016–

32Richland County, ILIL15,21914–

33Douglas County, ILIL19,88013–

34Shelby County, ILIL20,57613–

35Bureau County, ILIL32,51011–

36Stephenson County, ILIL43,22010−9%

37Brown County, ILIL6,4019–

38Marshall County, ILIL11,4739–

39Morgan County, ILIL32,5158–

40Hancock County, ILIL16,8037–

41Jo Daviess County, ILIL21,5947–

42Whiteside County, ILIL54,1217−71%

43Cass County, ILIL12,4636–

44Fulton County, ILIL32,9016−40%

45Knox County, ILIL47,7676−98%

46Livingston County, ILIL35,0574−83%

47Franklin County, ILIL36,9162–

48Crawford County, ILIL18,6481–

SHOWING 1–48 OF 48

Download CSV (full list, 48 rows)

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