RANKING · 2010 CENSUS · 101 SHOWN OF 101

Largest Mexican population, Illinois counties · 2010

Illinois counties ranked by the number of residents who are Mexican origin, from the 2010 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 101 counties in Illinois that qualify, ranked against each other statewide. The median across all 101 is 402.

Mexican Americans: full group profile →

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SAME RANKING BYCities States Metros

RELATEDHighest Mexican population share Largest Puerto Rican population Highest Puerto Rican population share Largest Cuban population Highest Cuban population share Largest Dominican population

YEAR2010 2020 2024

RANKPLACESTATEPOPMEXICAN POPULATIONVS –

01Cook County, ILIL5,194,625930,542–

02Kane County, ILIL525,757131,055–

03Lake County, ILIL719,339108,261–

04DuPage County, ILIL934,29890,425–

05Will County, ILIL712,25383,656–

06McHenry County, ILIL317,75127,267–

07Winnebago County, ILIL283,67424,610–

08Rock Island County, ILIL141,86914,595–

09Kendall County, ILIL145,47012,895–

10Boone County, ILIL53,5689,515–

11DeKalb County, ILIL101,8358,005–

12Kankakee County, ILIL105,5257,939–

13LaSalle County, ILIL107,7737,209–

14Champaign County, ILIL209,9726,799–

15St. Clair County, ILIL250,7085,580–

16Peoria County, ILIL178,5535,219–

17Whiteside County, ILIL54,1215,205–

18Madison County, ILIL263,1105,179–

19McLean County, ILIL171,4194,795–

20Ogle County, ILIL51,3994,193–

21Grundy County, ILIL54,0523,329–

22Vermilion County, ILIL71,2592,923–

23Bureau County, ILIL32,5102,110–

24Sangamon County, ILIL194,1702,030–

25Henry County, ILIL48,0951,862–

26Tazewell County, ILIL130,0491,728–

27Knox County, ILIL47,7671,724–

28Cass County, ILIL12,4631,635–

29Iroquois County, ILIL26,1501,417–

30Lee County, ILIL32,9141,266–

31Macon County, ILIL99,3001,125–

32Warren County, ILIL16,2221,110–

33Douglas County, ILIL19,8801,082–

34Jackson County, ILIL52,5011,041–

35Livingston County, ILIL35,0571,026–

36Stephenson County, ILIL43,220931–

37Coles County, ILIL46,607868–

38Clinton County, ILIL37,128784–

39Union County, ILIL16,656749–

40Logan County, ILIL27,182653–

41McDonough County, ILIL25,916645–

42Fulton County, ILIL32,901617–

43Jefferson County, ILIL36,147602–

44Williamson County, ILIL67,225581–

45Randolph County, ILIL29,921550–

46Morgan County, ILIL32,515528–

47Jo Daviess County, ILIL21,594517–

48Adams County, ILIL64,267500–

49Marion County, ILIL36,382491–

50Effingham County, ILIL34,519436–

51Woodford County, ILIL38,111402–

52Perry County, ILIL20,160361–

53Brown County, ILIL6,401357–

54Franklin County, ILIL36,916320–

55Carroll County, ILIL15,419318–

56Christian County, ILIL33,443314–

57Saline County, ILIL22,772314–

58Macoupin County, ILIL43,748308–

59Bond County, ILIL16,959307–

60De Witt County, ILIL15,118306–

61Lawrence County, ILIL13,790291–

62Montgomery County, ILIL28,076286–

63Crawford County, ILIL18,648281–

64Monroe County, ILIL34,840270–

65Johnson County, ILIL13,363247–

66Mercer County, ILIL15,229214–

67Marshall County, ILIL11,473208–

68Ford County, ILIL13,216194–

69Putnam County, ILIL5,619185–

70Jersey County, ILIL21,160179–

71Fayette County, ILIL20,790171–

72Wayne County, ILIL15,882140–

73Washington County, ILIL13,564134–

74Shelby County, ILIL20,576129–

75Clay County, ILIL12,793125–

76Piatt County, ILIL16,791107–

77Pike County, ILIL14,23190–

78Greene County, ILIL11,31389–

79Mason County, ILIL12,41187–

80Pope County, ILIL3,67287–

81Edgar County, ILIL16,32385–

82White County, ILIL13,25084–

83Wabash County, ILIL10,90783–

84Schuyler County, ILIL6,65779–

85Pulaski County, ILIL4,82076–

86Stark County, ILIL5,31967–

87Moultrie County, ILIL14,37162–

88Hancock County, ILIL16,80361–

89Jasper County, ILIL9,03261–

90Menard County, ILIL11,86360–

91Richland County, ILIL15,21960–

92Clark County, ILIL15,11459–

93Cumberland County, ILIL10,20848–

94Massac County, ILIL13,50236–

95Hardin County, ILIL3,58830–

96Henderson County, ILIL5,98426–

97Alexander County, ILIL4,57022–

98Gallatin County, ILIL4,6169–

99Hamilton County, ILIL7,8599–

100Scott County, ILIL4,8669–

101Calhoun County, ILIL4,3008–

SHOWING 1–101 OF 101

Download CSV (full list, 101 rows)

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