RANKING · 2020 CENSUS · 70 SHOWN OF 70

Highest South American population share, Illinois counties · 2020

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 70 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, ILIL5,194,6251.3%–

02DuPage County, ILIL934,2980.8%–

03DeKalb County, ILIL101,8350.8%–

04Lake County, ILIL719,3390.6%–

05McHenry County, ILIL317,7510.6%–

06Kane County, ILIL525,7570.5%–

07Champaign County, ILIL209,9720.5%–

08Will County, ILIL712,2530.4%–

09McLean County, ILIL171,4190.4%–

10Logan County, ILIL27,1820.4%–

11Kendall County, ILIL145,4700.3%–

12Boone County, ILIL53,5680.3%–

13Warren County, ILIL16,2220.3%–

14Winnebago County, ILIL283,6740.3%–

15Jackson County, ILIL52,5010.3%–

16Menard County, ILIL11,8630.3%–

17Pulaski County, ILIL4,8200.3%–

18Iroquois County, ILIL26,1500.3%–

19Rock Island County, ILIL141,8690.3%–

20Macon County, ILIL99,3000.2%–

21Peoria County, ILIL178,5530.2%–

22Stephenson County, ILIL43,2200.2%–

23Kankakee County, ILIL105,5250.2%–

24Moultrie County, ILIL14,3710.2%–

25Fulton County, ILIL32,9010.2%–

26Massac County, ILIL13,5020.2%–

27Macoupin County, ILIL43,7480.2%–

28Jersey County, ILIL21,1600.2%–

29Washington County, ILIL13,5640.2%–

30Mercer County, ILIL15,2290.2%–

31Sangamon County, ILIL194,1700.2%–

32Richland County, ILIL15,2190.1%–

33Lee County, ILIL32,9140.1%–

34Shelby County, ILIL20,5760.1%–

35Brown County, ILIL6,4010.1%–

36McDonough County, ILIL25,9160.1%–

37Henry County, ILIL48,0950.1%–

38Adams County, ILIL64,2670.1%–

39White County, ILIL13,2500.1%–

40Bond County, ILIL16,9590.1%–

41Madison County, ILIL263,1100.1%–

42Jo Daviess County, ILIL21,5940.1%–

43Ford County, ILIL13,2160.1%–

44Marshall County, ILIL11,4730.1%–

45Tazewell County, ILIL130,0490.1%–

46Marion County, ILIL36,3820.1%–

47Grundy County, ILIL54,0520.1%–

48Vermilion County, ILIL71,2590.1%–

49Douglas County, ILIL19,8800.1%–

50LaSalle County, ILIL107,7730.1%–

51Lawrence County, ILIL13,7900.1%–

52St. Clair County, ILIL250,7080.1%–

53Cass County, ILIL12,4630.0%–

54Williamson County, ILIL67,2250.0%–

55Livingston County, ILIL35,0570.0%–

56Bureau County, ILIL32,5100.0%–

57Hancock County, ILIL16,8030.0%–

58Woodford County, ILIL38,1110.0%–

59Morgan County, ILIL32,5150.0%–

60Coles County, ILIL46,6070.0%–

61Franklin County, ILIL36,9160.0%–

62Whiteside County, ILIL54,1210.0%–

63Knox County, ILIL47,7670.0%–

64Ogle County, ILIL51,3990.0%–

65Pike County, ILIL14,2310.0%–

66Jasper County, ILIL9,0320.0%–

67Effingham County, ILIL34,5190.0%–

68Jefferson County, ILIL36,1470.0%–

69Greene County, ILIL11,3130.0%–

70Crawford County, ILIL18,6480.0%–

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