RANKING · 2024 ACS · 102 SHOWN OF 102

Largest Mexican population, Illinois counties

Illinois counties ranked by the number of residents who are Mexican 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 102 counties in Illinois that qualify, ranked against each other statewide.

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 2010

01Cook County, ILIL5,194,6251,043,055+12%

02Kane County, ILIL525,757143,563+10%

03Lake County, ILIL719,339136,544+26%

04Will County, ILIL712,253115,121+38%

05DuPage County, ILIL934,298111,018+23%

06McHenry County, ILIL317,75139,343+44%

07Winnebago County, ILIL283,67434,835+42%

08Kendall County, ILIL145,47025,734+100%

09Rock Island County, ILIL141,86917,493+20%

10Boone County, ILIL53,56812,111+27%

11DeKalb County, ILIL101,83511,610+45%

12Kankakee County, ILIL105,52511,477+45%

13Champaign County, ILIL209,97210,638+56%

14LaSalle County, ILIL107,77310,551+46%

15McLean County, ILIL171,4198,298+73%

16St. Clair County, ILIL250,7088,043+44%

17Madison County, ILIL263,1107,778+50%

18Peoria County, ILIL178,5537,539+44%

19Whiteside County, ILIL54,1215,932+14%

20Ogle County, ILIL51,3995,324+27%

21Grundy County, ILIL54,0525,012+51%

22Vermilion County, ILIL71,2593,464+19%

23Bureau County, ILIL32,5103,048+44%

24Henry County, ILIL48,0952,855+53%

25Sangamon County, ILIL194,1702,557+26%

26Tazewell County, ILIL130,0492,413+40%

27Knox County, ILIL47,7672,238+30%

28Cass County, ILIL12,4632,083+27%

29Jackson County, ILIL52,5012,059+98%

30Macon County, ILIL99,3001,957+74%

31Iroquois County, ILIL26,1501,940+37%

32Stephenson County, ILIL43,2201,848+98%

33Lee County, ILIL32,9141,711+35%

34Douglas County, ILIL19,8801,540+42%

35Warren County, ILIL16,2221,496+35%

36Livingston County, ILIL35,0571,447+41%

37Coles County, ILIL46,6071,362+57%

38Williamson County, ILIL67,2251,238+113%

39Adams County, ILIL64,2671,084+117%

40Clinton County, ILIL37,1281,013+29%

41Jo Daviess County, ILIL21,594677+31%

42Fulton County, ILIL32,901670+9%

43Perry County, ILIL20,160661+83%

44McDonough County, ILIL25,916653+1%

45Union County, ILIL16,656639−15%

46Jefferson County, ILIL36,147630+5%

47Christian County, ILIL33,443596+90%

48Franklin County, ILIL36,916570+78%

49Morgan County, ILIL32,515566+7%

50Woodford County, ILIL38,111562+40%

51Logan County, ILIL27,182538−18%

52Marion County, ILIL36,382475−3%

53Mercer County, ILIL15,229464+117%

54Monroe County, ILIL34,840450+67%

55Fayette County, ILIL20,790445+160%

56Johnson County, ILIL13,363443+79%

57Randolph County, ILIL29,921442−20%

58Carroll County, ILIL15,419408+28%

59De Witt County, ILIL15,118402+31%

60Montgomery County, ILIL28,076401+40%

61Ford County, ILIL13,216372+92%

62Marshall County, ILIL11,473370+78%

63Macoupin County, ILIL43,748344+12%

64Effingham County, ILIL34,519318−27%

65Crawford County, ILIL18,648300+7%

66Hancock County, ILIL16,803298+389%

67Putnam County, ILIL5,619286+55%

68Brown County, ILIL6,401269−25%

69Jersey County, ILIL21,160260+45%

70Clark County, ILIL15,114247+319%

71Clay County, ILIL12,793247+98%

72Lawrence County, ILIL13,790213−27%

73Massac County, ILIL13,502208+478%

74Richland County, ILIL15,219193+222%

75Saline County, ILIL22,772182−42%

76Bond County, ILIL16,959177−42%

77Pike County, ILIL14,231177+97%

78Shelby County, ILIL20,576171+33%

79White County, ILIL13,250165+96%

80Mason County, ILIL12,411148+70%

81Piatt County, ILIL16,791141+32%

82Washington County, ILIL13,564126−6%

83Moultrie County, ILIL14,371120+94%

84Menard County, ILIL11,863117+95%

85Jasper County, ILIL9,032104+70%

86Edgar County, ILIL16,323102+20%

87Wayne County, ILIL15,882100−29%

88Stark County, ILIL5,31984+25%

89Scott County, ILIL4,86673+711%

90Schuyler County, ILIL6,65768−14%

91Pope County, ILIL3,67266−24%

92Henderson County, ILIL5,98463+142%

93Gallatin County, ILIL4,61655+511%

94Greene County, ILIL11,31352−42%

95Wabash County, ILIL10,90748−42%

96Pulaski County, ILIL4,82033−57%

97Hardin County, ILIL3,58828−7%

98Alexander County, ILIL4,57021−5%

99Hamilton County, ILIL7,85917+89%

100Cumberland County, ILIL10,20815−69%

101Edwards County, ILIL5,89813–

102Calhoun County, ILIL4,3003−63%

SHOWING 1–102 OF 102

Download CSV (full list, 102 rows)

UPDATED 2026-09-11 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES