RANKING · 2020 CENSUS · 48 SHOWN OF 48

Highest Colombian population share, Illinois counties · 2020

Illinois counties ranked by the share of all residents who are Colombian origin (2020 American Community Survey). A concentration measure: Colombian residents as a percentage of total population. This list covers the 48 counties in Illinois that qualify, ranked against each other statewide.

Colombian Americans: full group profile →

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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 SHAREVS 2010

01DeKalb County, ILIL101,8350.5%+0.4 pts

02Logan County, ILIL27,1820.4%–

03Cook County, ILIL5,194,6250.3%+0.1 pts

04Menard County, ILIL11,8630.3%+0.2 pts

05DuPage County, ILIL934,2980.3%+0.0 pts

06Lake County, ILIL719,3390.3%−0.0 pts

07McHenry County, ILIL317,7510.2%+0.1 pts

08Kane County, ILIL525,7570.2%+0.1 pts

09Champaign County, ILIL209,9720.2%+0.1 pts

10Will County, ILIL712,2530.1%+0.0 pts

11Brown County, ILIL6,4010.1%–

12McLean County, ILIL171,4190.1%+0.1 pts

13White County, ILIL13,2500.1%–

14Iroquois County, ILIL26,1500.1%+0.1 pts

15Peoria County, ILIL178,5530.1%+0.1 pts

16Sangamon County, ILIL194,1700.1%+0.1 pts

17Richland County, ILIL15,2190.1%–

18Marshall County, ILIL11,4730.1%–

19Kankakee County, ILIL105,5250.1%+0.0 pts

20Adams County, ILIL64,2670.1%+0.0 pts

21Tazewell County, ILIL130,0490.1%+0.1 pts

22Lee County, ILIL32,9140.1%–

23Douglas County, ILIL19,8800.1%–

24Rock Island County, ILIL141,8690.1%+0.0 pts

25Shelby County, ILIL20,5760.1%–

26Marion County, ILIL36,3820.1%+0.0 pts

27Jackson County, ILIL52,5010.1%+0.0 pts

28Henry County, ILIL48,0950.1%−0.1 pts

29Grundy County, ILIL54,0520.1%–

30Cass County, ILIL12,4630.0%–

31Winnebago County, ILIL283,6740.0%−0.1 pts

32Vermilion County, ILIL71,2590.0%–

33Macon County, ILIL99,3000.0%−0.2 pts

34Madison County, ILIL263,1100.0%+0.0 pts

35Hancock County, ILIL16,8030.0%–

36Macoupin County, ILIL43,7480.0%–

37LaSalle County, ILIL107,7730.0%−0.0 pts

38Bureau County, ILIL32,5100.0%–

39Jo Daviess County, ILIL21,5940.0%–

40Morgan County, ILIL32,5150.0%–

41Stephenson County, ILIL43,2200.0%−0.0 pts

42St. Clair County, ILIL250,7080.0%−0.0 pts

43Fulton County, ILIL32,9010.0%−0.0 pts

44Whiteside County, ILIL54,1210.0%−0.0 pts

45Knox County, ILIL47,7670.0%−0.5 pts

46Livingston County, ILIL35,0570.0%−0.1 pts

47Crawford County, ILIL18,6480.0%–

48Franklin County, ILIL36,9160.0%–

SHOWING 1–48 OF 48

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UPDATED 2026-08-08 · DATA: US CENSUS BUREAU DECENNIAL CENSUS