RANKING · 2024 ACS · 78 SHOWN OF 78

Largest South American population, Illinois counties

Illinois counties ranked by the number of residents who are South American origin, from the 2024 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 78 counties in Illinois that qualify, ranked against each other statewide.

South 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

RANKPLACESTATEPOPSOUTH AMERICAN POPULATIONVS 2010

01Cook County, ILIL5,194,62587,744+74%

02DuPage County, ILIL934,29810,799+71%

03Lake County, ILIL719,3397,523+78%

04Kane County, ILIL525,7575,603+161%

05Will County, ILIL712,2534,090+46%

06McHenry County, ILIL317,7512,181+121%

07Champaign County, ILIL209,9721,727+66%

08Winnebago County, ILIL283,6741,283+38%

09Kendall County, ILIL145,4701,032+101%

10Sangamon County, ILIL194,170780+64%

11Peoria County, ILIL178,553743+194%

12Madison County, ILIL263,110669+514%

13Rock Island County, ILIL141,869487+199%

14DeKalb County, ILIL101,835468+60%

15McLean County, ILIL171,419393+69%

16St. Clair County, ILIL250,708324−12%

17LaSalle County, ILIL107,773273+4%

18Macon County, ILIL99,300243−33%

19Grundy County, ILIL54,052223+1758%

20Stephenson County, ILIL43,220198+1423%

21Cass County, ILIL12,463190–

22Christian County, ILIL33,443175+872%

23Boone County, ILIL53,568167−36%

24Knox County, ILIL47,767152−54%

25Effingham County, ILIL34,519122–

26Kankakee County, ILIL105,525112+7%

27Jackson County, ILIL52,501105−52%

28Logan County, ILIL27,182104+700%

29Coles County, ILIL46,60788+120%

30Tazewell County, ILIL130,04987+38%

31Crawford County, ILIL18,64883–

32Lee County, ILIL32,91475+134%

33Iroquois County, ILIL26,15071+610%

34Pike County, ILIL14,23169–

35Wabash County, ILIL10,90764+276%

36Woodford County, ILIL38,11153–

37Johnson County, ILIL13,36350–

38Whiteside County, ILIL54,12148−41%

39Adams County, ILIL64,26745−32%

40Franklin County, ILIL36,91638–

41Putnam County, ILIL5,61938–

42Williamson County, ILIL67,22538−68%

43Mason County, ILIL12,41137+363%

44Morgan County, ILIL32,51537–

45Fulton County, ILIL32,90135−8%

46Moultrie County, ILIL14,37134–

47Carroll County, ILIL15,41933+154%

48Hancock County, ILIL16,80333–

49Macoupin County, ILIL43,74832–

50Marion County, ILIL36,38232+433%

51Jo Daviess County, ILIL21,59430–

52Richland County, ILIL15,21927–

53Douglas County, ILIL19,88026+117%

54McDonough County, ILIL25,91625+56%

55Fayette County, ILIL20,79023–

56Ogle County, ILIL51,39922+100%

57Massac County, ILIL13,50220+67%

58Livingston County, ILIL35,05719−70%

59White County, ILIL13,25019–

60Henry County, ILIL48,09518−81%

61Bond County, ILIL16,95913−90%

62Bureau County, ILIL32,51011−88%

63Brown County, ILIL6,40110–

64Jersey County, ILIL21,16010−70%

65Montgomery County, ILIL28,0768–

66Perry County, ILIL20,1606−76%

67Clay County, ILIL12,7935–

68Marshall County, ILIL11,4735+67%

69Vermilion County, ILIL71,2595−96%

70Ford County, ILIL13,2163+50%

71Clinton County, ILIL37,1282−60%

72Calhoun County, ILIL4,3002–

73Greene County, ILIL11,3132–

74Union County, ILIL16,6562–

75Washington County, ILIL13,5642–

76Jasper County, ILIL9,0321–

77Stark County, ILIL5,3191–

78Warren County, ILIL16,2221−93%

SHOWING 1–78 OF 78

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES