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 (2020 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. The median across all 70 is 0.1%.

South Americans: full group profile →

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 2010

01Cook County, ILIL5,194,6251.3%+0.3 pts

02DuPage County, ILIL934,2980.8%+0.1 pts

03DeKalb County, ILIL101,8350.8%+0.5 pts

04Lake County, ILIL719,3390.6%0.0 pts

05McHenry County, ILIL317,7510.6%+0.3 pts

06Kane County, ILIL525,7570.5%+0.1 pts

07Champaign County, ILIL209,9720.5%−0.1 pts

08Will County, ILIL712,2530.4%0.0 pts

09McLean County, ILIL171,4190.4%+0.2 pts

10Logan County, ILIL27,1820.4%+0.3 pts

11Kendall County, ILIL145,4700.3%−0.2 pts

12Boone County, ILIL53,5680.3%−0.2 pts

13Warren County, ILIL16,2220.3%+0.2 pts

14Winnebago County, ILIL283,6740.3%0.0 pts

15Jackson County, ILIL52,5010.3%−0.1 pts

16Menard County, ILIL11,8630.3%+0.1 pts

17Pulaski County, ILIL4,8200.3%+0.2 pts

18Iroquois County, ILIL26,1500.3%+0.2 pts

19Rock Island County, ILIL141,8690.3%+0.1 pts

20Macon County, ILIL99,3000.2%−0.1 pts

21Peoria County, ILIL178,5530.2%+0.1 pts

22Stephenson County, ILIL43,2200.2%+0.2 pts

23Kankakee County, ILIL105,5250.2%+0.1 pts

24Moultrie County, ILIL14,3710.2%–

25Fulton County, ILIL32,9010.2%+0.1 pts

26Massac County, ILIL13,5020.2%+0.1 pts

27Macoupin County, ILIL43,7480.2%–

28Jersey County, ILIL21,1600.2%0.0 pts

29Washington County, ILIL13,5640.2%–

30Mercer County, ILIL15,2290.2%–

31Sangamon County, ILIL194,1700.2%−0.1 pts

32Richland County, ILIL15,2190.1%–

33Lee County, ILIL32,9140.1%+0.1 pts

34Shelby County, ILIL20,5760.1%–

35Brown County, ILIL6,4010.1%–

36McDonough County, ILIL25,9160.1%+0.1 pts

37Henry County, ILIL48,0950.1%−0.1 pts

38Adams County, ILIL64,2670.1%0.0 pts

39White County, ILIL13,2500.1%–

40Bond County, ILIL16,9590.1%−0.6 pts

41Madison County, ILIL263,1100.1%+0.1 pts

42Jo Daviess County, ILIL21,5940.1%–

43Ford County, ILIL13,2160.1%+0.1 pts

44Marshall County, ILIL11,4730.1%+0.1 pts

45Tazewell County, ILIL130,0490.1%0.0 pts

46Marion County, ILIL36,3820.1%+0.1 pts

47Grundy County, ILIL54,0520.1%0.0 pts

48Vermilion County, ILIL71,2590.1%−0.1 pts

49Douglas County, ILIL19,8800.1%0.0 pts

50LaSalle County, ILIL107,7730.1%−0.2 pts

51Lawrence County, ILIL13,7900.1%–

52St. Clair County, ILIL250,7080.1%−0.1 pts

53Cass County, ILIL12,4630.0%–

54Williamson County, ILIL67,2250.0%−0.1 pts

55Livingston County, ILIL35,0570.0%−0.1 pts

56Bureau County, ILIL32,5100.0%−0.2 pts

57Hancock County, ILIL16,8030.0%–

58Woodford County, ILIL38,1110.0%–

59Morgan County, ILIL32,5150.0%–

60Coles County, ILIL46,6070.0%0.0 pts

61Franklin County, ILIL36,9160.0%–

62Whiteside County, ILIL54,1210.0%−0.1 pts

63Knox County, ILIL47,7670.0%−0.6 pts

64Ogle County, ILIL51,3990.0%0.0 pts

65Pike County, ILIL14,2310.0%–

66Jasper County, ILIL9,0320.0%–

67Effingham County, ILIL34,5190.0%–

68Jefferson County, ILIL36,1470.0%0.0 pts

69Greene County, ILIL11,3130.0%–

70Crawford County, ILIL18,6480.0%–

SHOWING 1–70 OF 70

Download CSV (full list, 70 rows)

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