RANKING · 2024 ACS · 78 SHOWN OF 78

Highest South American population share, Illinois counties

Illinois counties ranked by the share of all residents who are South American origin (2023 American Community Survey). A concentration measure: South American residents as a percentage of total population. This list covers the 78 counties in Illinois that qualify, ranked against each other statewide.

IllinoisAll states All rankings

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

RANKPLACESTATEPOPSOUTH AMERICAN SHAREVS 2000

01Cook County, ILIL5,194,6251.7%–

02Cass County, ILIL12,4631.5%–

03DuPage County, ILIL934,2981.2%–

04Kane County, ILIL525,7571.1%–

05Lake County, ILIL719,3391.1%–

06Champaign County, ILIL209,9720.8%–

07Kendall County, ILIL145,4700.7%–

08McHenry County, ILIL317,7510.7%–

09Putnam County, ILIL5,6190.7%–

10Will County, ILIL712,2530.6%–

11Wabash County, ILIL10,9070.6%–

12Christian County, ILIL33,4430.5%–

13Pike County, ILIL14,2310.5%–

14DeKalb County, ILIL101,8350.5%–

15Winnebago County, ILIL283,6740.5%–

16Stephenson County, ILIL43,2200.5%–

17Crawford County, ILIL18,6480.4%–

18Grundy County, ILIL54,0520.4%–

19Peoria County, ILIL178,5530.4%–

20Sangamon County, ILIL194,1700.4%–

21Logan County, ILIL27,1820.4%–

22Johnson County, ILIL13,3630.4%–

23Effingham County, ILIL34,5190.4%–

24Rock Island County, ILIL141,8690.3%–

25Boone County, ILIL53,5680.3%–

26Knox County, ILIL47,7670.3%–

27Mason County, ILIL12,4110.3%–

28Iroquois County, ILIL26,1500.3%–

29Madison County, ILIL263,1100.3%–

30LaSalle County, ILIL107,7730.3%–

31Macon County, ILIL99,3000.2%–

32Moultrie County, ILIL14,3710.2%–

33McLean County, ILIL171,4190.2%–

34Lee County, ILIL32,9140.2%–

35Carroll County, ILIL15,4190.2%–

36Jackson County, ILIL52,5010.2%–

37Hancock County, ILIL16,8030.2%–

38Coles County, ILIL46,6070.2%–

39Richland County, ILIL15,2190.2%–

40Brown County, ILIL6,4010.2%–

41Massac County, ILIL13,5020.1%–

42White County, ILIL13,2500.1%–

43Woodford County, ILIL38,1110.1%–

44Jo Daviess County, ILIL21,5940.1%–

45Douglas County, ILIL19,8800.1%–

46St. Clair County, ILIL250,7080.1%–

47Morgan County, ILIL32,5150.1%–

48Fayette County, ILIL20,7900.1%–

49Fulton County, ILIL32,9010.1%–

50Kankakee County, ILIL105,5250.1%–

51Franklin County, ILIL36,9160.1%–

52McDonough County, ILIL25,9160.1%–

53Whiteside County, ILIL54,1210.1%–

54Marion County, ILIL36,3820.1%–

55Bond County, ILIL16,9590.1%–

56Macoupin County, ILIL43,7480.1%–

57Adams County, ILIL64,2670.1%–

58Tazewell County, ILIL130,0490.1%–

59Williamson County, ILIL67,2250.1%–

60Livingston County, ILIL35,0570.1%–

61Jersey County, ILIL21,1600.0%–

62Calhoun County, ILIL4,3000.0%–

63Marshall County, ILIL11,4730.0%–

64Ogle County, ILIL51,3990.0%–

65Clay County, ILIL12,7930.0%–

66Henry County, ILIL48,0950.0%–

67Bureau County, ILIL32,5100.0%–

68Perry County, ILIL20,1600.0%–

69Montgomery County, ILIL28,0760.0%–

70Ford County, ILIL13,2160.0%–

71Stark County, ILIL5,3190.0%–

72Greene County, ILIL11,3130.0%–

73Washington County, ILIL13,5640.0%–

74Union County, ILIL16,6560.0%–

75Jasper County, ILIL9,0320.0%–

76Vermilion County, ILIL71,2590.0%–

77Warren County, ILIL16,2220.0%–

78Clinton County, ILIL37,1280.0%–

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UPDATED 2026-06-06 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES