RANKING · 2024 ACS · 56 SHOWN OF 56

Highest Colombian population share, Illinois counties

Illinois counties ranked by the share of all residents who are Colombian origin (2024 American Community Survey). A concentration measure: Colombian residents as a percentage of total population. This list covers the 56 counties in Illinois that qualify, ranked against each other statewide. The median across all 56 is 0.1%. Biggest climber in the top 100 since 2020: Crawford County, IL, up 43 places to #4.

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

01Putnam County, ILIL5,6190.7%–

02Pike County, ILIL14,2310.5%–

03▲5Kane County, ILIL525,7570.5%+0.3 pts

04▲43Crawford County, ILIL18,6480.4%–

05▼2Cook County, ILIL5,194,6250.4%+0.2 pts

06Lake County, ILIL719,3390.4%+0.1 pts

07▼5Logan County, ILIL27,1820.4%–

08▼3DuPage County, ILIL934,2980.4%+0.1 pts

09Champaign County, ILIL209,9720.3%+0.2 pts

10Mason County, ILIL12,4110.3%+0.2 pts

11▼10DeKalb County, ILIL101,8350.3%+0.2 pts

12▲29Stephenson County, ILIL43,2200.2%+0.2 pts

13▲3Sangamon County, ILIL194,1700.2%+0.2 pts

14Johnson County, ILIL13,3630.2%–

15▼1Iroquois County, ILIL26,1500.2%+0.2 pts

16Kendall County, ILIL145,4700.2%+0.1 pts

17▼7Will County, ILIL712,2530.2%0.0 pts

18Coles County, ILIL46,6070.2%+0.1 pts

19▲26Knox County, ILIL47,7670.2%−0.3 pts

20▼13McHenry County, ILIL317,7510.1%0.0 pts

21Carroll County, ILIL15,4190.1%+0.1 pts

22▲13Hancock County, ILIL16,8030.1%–

23Douglas County, ILIL19,8800.1%–

24▲7Winnebago County, ILIL283,6740.1%0.0 pts

25▲14Jo Daviess County, ILIL21,5940.1%–

26▲8Madison County, ILIL263,1100.1%+0.1 pts

27▼3Rock Island County, ILIL141,8690.1%+0.1 pts

28▲1Grundy County, ILIL54,0520.1%–

29▼16White County, ILIL13,2500.1%–

30▲7LaSalle County, ILIL107,7730.1%0.0 pts

31▲2Macon County, ILIL99,3000.1%−0.2 pts

32▲16Franklin County, ILIL36,9160.1%–

33Woodford County, ILIL38,1110.1%–

34▲8St. Clair County, ILIL250,7080.1%0.0 pts

35▼20Peoria County, ILIL178,5530.1%0.0 pts

36▼24McLean County, ILIL171,4190.1%0.0 pts

37▼15Lee County, ILIL32,9140.1%–

38▼18Adams County, ILIL64,2670.0%0.0 pts

39Williamson County, ILIL67,2250.0%0.0 pts

40Jersey County, ILIL21,1600.0%–

41Calhoun County, ILIL4,3000.0%–

42▼24Marshall County, ILIL11,4730.0%–

43▼16Jackson County, ILIL52,5010.0%0.0 pts

44▼23Tazewell County, ILIL130,0490.0%0.0 pts

45Clay County, ILIL12,7930.0%–

46▼18Henry County, ILIL48,0950.0%−0.1 pts

47▼11Macoupin County, ILIL43,7480.0%–

48▼29Kankakee County, ILIL105,5250.0%0.0 pts

49▼11Bureau County, ILIL32,5100.0%–

50▼33Richland County, ILIL15,2190.0%–

51Christian County, ILIL33,4430.0%0.0 pts

52▼8Whiteside County, ILIL54,1210.0%0.0 pts

53Washington County, ILIL13,5640.0%–

54▼11Fulton County, ILIL32,9010.0%0.0 pts

55▼9Livingston County, ILIL35,0570.0%−0.1 pts

56▼30Marion County, ILIL36,3820.0%0.0 pts

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