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. The median across all 102 is 538. Biggest climber in the top 100 since 2020: Clay County, IL, up 31 places to #71.

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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%

11▲1DeKalb County, ILIL101,83511,610+45%

12▼1Kankakee County, ILIL105,52511,477+45%

13▲1Champaign County, ILIL209,97210,638+56%

14▼1LaSalle County, ILIL107,77310,551+46%

15▲3McLean County, ILIL171,4198,298+73%

16▼1St. Clair County, ILIL250,7088,043+44%

17▼1Madison County, ILIL263,1107,778+50%

18▼1Peoria 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%

24▲1Henry County, ILIL48,0952,855+53%

25▼1Sangamon County, ILIL194,1702,557+26%

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

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

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

29▲1Jackson County, ILIL52,5012,059+98%

30▲2Macon County, ILIL99,3001,957+74%

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

32▲1Stephenson County, ILIL43,2201,848+98%

33▼4Lee County, ILIL32,9141,711+35%

34▲2Douglas County, ILIL19,8801,540+42%

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

36▲1Livingston County, ILIL35,0571,447+41%

37▲1Coles County, ILIL46,6071,362+57%

38▼4Williamson County, ILIL67,2251,238+113%

39▲7Adams County, ILIL64,2671,084+117%

40▼1Clinton County, ILIL37,1281,013+29%

41▲6Jo Daviess County, ILIL21,594677+31%

42▲3Fulton County, ILIL32,901670+9%

43▲7Perry County, ILIL20,160661+83%

44▼2McDonough County, ILIL25,916653+1%

45▼4Union County, ILIL16,656639−15%

46▼3Jefferson County, ILIL36,147630+5%

47▲8Christian County, ILIL33,443596+90%

48▲6Franklin County, ILIL36,916570+78%

49Morgan County, ILIL32,515566+7%

50▲2Woodford County, ILIL38,111562+40%

51▼3Logan County, ILIL27,182538−18%

52▲1Marion County, ILIL36,382475−3%

53▲13Mercer County, ILIL15,229464+117%

54▼3Monroe County, ILIL34,840450+67%

55▲14Fayette County, ILIL20,790445+160%

56▲7Johnson County, ILIL13,363443+79%

57▼17Randolph County, ILIL29,921442−20%

58▲3Carroll County, ILIL15,419408+28%

59▲1De Witt County, ILIL15,118402+31%

60▼1Montgomery County, ILIL28,076401+40%

61▼4Ford County, ILIL13,216372+92%

62▲2Marshall County, ILIL11,473370+78%

63▲2Macoupin County, ILIL43,748344+12%

64▼20Effingham County, ILIL34,519318−27%

65▲6Crawford County, ILIL18,648300+7%

66▲9Hancock County, ILIL16,803298+389%

67Putnam County, ILIL5,619286+55%

68▼6Brown County, ILIL6,401269−25%

69▲5Jersey County, ILIL21,160260+45%

70▲2Clark County, ILIL15,114247+319%

71▲31Clay County, ILIL12,793247+98%

72▼2Lawrence County, ILIL13,790213−27%

73▼15Massac County, ILIL13,502208+478%

74▲7Richland County, ILIL15,219193+222%

75▼7Saline County, ILIL22,772182−42%

76▼20Bond County, ILIL16,959177−42%

77▲1Pike County, ILIL14,231177+97%

78▲4Shelby County, ILIL20,576171+33%

79▲4White County, ILIL13,250165+96%

80▲7Mason County, ILIL12,411148+70%

81▼4Piatt County, ILIL16,791141+32%

82▲10Washington County, ILIL13,564126−6%

83▼4Moultrie County, ILIL14,371120+94%

84▲2Menard County, ILIL11,863117+95%

85▲10Jasper County, ILIL9,032104+70%

86▼10Edgar County, ILIL16,323102+20%

87▲1Wayne County, ILIL15,882100−29%

88▲1Stark County, ILIL5,31984+25%

89▲4Scott County, ILIL4,86673+711%

90▲9Schuyler County, ILIL6,65768−14%

91▲5Pope County, ILIL3,67266−24%

92▼1Henderson County, ILIL5,98463+142%

93▲8Gallatin County, ILIL4,61655+511%

94▼14Greene County, ILIL11,31352−42%

95▼22Wabash County, ILIL10,90748−42%

96▼6Pulaski County, ILIL4,82033−57%

97Hardin County, ILIL3,58828−7%

98Alexander County, ILIL4,57021−5%

99▼15Hamilton County, ILIL7,85917+89%

100▼15Cumberland County, ILIL10,20815−69%

101▼1Edwards County, ILIL5,89813–

102▼8Calhoun County, ILIL4,3003−63%

SHOWING 1–102 OF 102

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