RANKING · 2010 CENSUS · 42 SHOWN OF 42

Highest Colombian population share, Illinois counties · 2010

Illinois counties ranked by the share of all residents who are Colombian origin (2010 American Community Survey). A concentration measure: Colombian residents as a percentage of total population. This list covers the 42 counties in Illinois that qualify, ranked against each other statewide. The median across all 42 is 0.1%.

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 SHAREVS –

01Knox County, ILIL47,7670.5%–

02Lake County, ILIL719,3390.3%–

03DuPage County, ILIL934,2980.3%–

04Cook County, ILIL5,194,6250.2%–

05Macon County, ILIL99,3000.2%–

06Henry County, ILIL48,0950.1%–

07Winnebago County, ILIL283,6740.1%–

08Will County, ILIL712,2530.1%–

09Kane County, ILIL525,7570.1%–

10McHenry County, ILIL317,7510.1%–

11Warren County, ILIL16,2220.1%–

12Carroll County, ILIL15,4190.1%–

13Wabash County, ILIL10,9070.1%–

14Coles County, ILIL46,6070.1%–

15Kendall County, ILIL145,4700.1%–

16DeKalb County, ILIL101,8350.1%–

17St. Clair County, ILIL250,7080.1%–

18Menard County, ILIL11,8630.1%–

19Champaign County, ILIL209,9720.1%–

20Livingston County, ILIL35,0570.1%–

21McLean County, ILIL171,4190.1%–

22Mason County, ILIL12,4110.1%–

23Williamson County, ILIL67,2250.1%–

24LaSalle County, ILIL107,7730.0%–

25McDonough County, ILIL25,9160.0%–

26Kankakee County, ILIL105,5250.0%–

27Perry County, ILIL20,1600.0%–

28Whiteside County, ILIL54,1210.0%–

29Adams County, ILIL64,2670.0%–

30Fulton County, ILIL32,9010.0%–

31Christian County, ILIL33,4430.0%–

32Jackson County, ILIL52,5010.0%–

33Iroquois County, ILIL26,1500.0%–

34Stephenson County, ILIL43,2200.0%–

35Ogle County, ILIL51,3990.0%–

36Rock Island County, ILIL141,8690.0%–

37Madison County, ILIL263,1100.0%–

38Sangamon County, ILIL194,1700.0%–

39Clinton County, ILIL37,1280.0%–

40Peoria County, ILIL178,5530.0%–

41Marion County, ILIL36,3820.0%–

42Tazewell County, ILIL130,0490.0%–

SHOWING 1–42 OF 42

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