RANKING · 2024 ACS · 102 SHOWN OF 102

Highest Mexican population share, Illinois counties

Illinois counties ranked by the share of all residents who are Mexican origin (2024 American Community Survey). A concentration measure: Mexican residents as a percentage of total population. This list covers the 102 counties in Illinois that qualify, ranked against each other statewide. The median across all 102 is 1.9%. Biggest climber in the top 100 since 2020: Clay County, IL, up 50 places to #52.

Mexican Americans: full group profile →

IllinoisAll states All rankings

SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPMEXICAN SHAREVS 2010

01Kane County, ILIL525,75727.8%+1.7 pts

02Boone County, ILIL53,56822.8%+5.0 pts

03Cook County, ILIL5,194,62520.1%+2.1 pts

04Lake County, ILIL719,33919.1%+3.6 pts

05Kendall County, ILIL145,47018.7%+6.5 pts

06Will County, ILIL712,25316.4%+3.9 pts

07Cass County, ILIL12,46316.3%+4.3 pts

08▲3McHenry County, ILIL317,75112.6%+3.7 pts

09Winnebago County, ILIL283,67412.3%+3.9 pts

10▼2Rock Island County, ILIL141,86912.3%+2.4 pts

11▼1DuPage County, ILIL934,29811.9%+2.0 pts

12▲3DeKalb County, ILIL101,83511.5%+3.8 pts

13▼1Whiteside County, ILIL54,12110.8%+1.9 pts

14▼1Kankakee County, ILIL105,52510.8%+3.7 pts

15▼1Ogle County, ILIL51,39910.3%+2.5 pts

16▲3LaSalle County, ILIL107,7739.7%+3.4 pts

17▼1Grundy County, ILIL54,0529.4%+2.6 pts

18Bureau County, ILIL32,5109.3%+3.3 pts

19▼2Warren County, ILIL16,2229.1%+2.8 pts

20Douglas County, ILIL19,8807.8%+2.4 pts

21Iroquois County, ILIL26,1507.3%+2.6 pts

22▲1Henry County, ILIL48,0955.9%+2.2 pts

23▼1Putnam County, ILIL5,6195.1%+2.0 pts

24▲5Champaign County, ILIL209,9725.1%+1.7 pts

25▼1Lee County, ILIL32,9145.1%+1.5 pts

26▲7McLean County, ILIL171,4194.8%+2.0 pts

27▲1Vermilion County, ILIL71,2594.8%+1.2 pts

28▼1Knox County, ILIL47,7674.6%+1.3 pts

29▼4Brown County, ILIL6,4014.3%−0.9 pts

30▲2Stephenson County, ILIL43,2204.2%+2.3 pts

31Peoria County, ILIL178,5534.2%+1.4 pts

32▼2Livingston County, ILIL35,0574.1%+1.4 pts

33▲1Jackson County, ILIL52,5013.9%+2.1 pts

34▼8Union County, ILIL16,6563.8%−0.4 pts

35▲6Johnson County, ILIL13,3633.3%+1.4 pts

36▲6Perry County, ILIL20,1603.2%+1.6 pts

37Marshall County, ILIL11,4733.2%+1.5 pts

38▼2St. Clair County, ILIL250,7083.2%+1.1 pts

39Jo Daviess County, ILIL21,5943.1%+0.8 pts

40▲12Mercer County, ILIL15,2293.0%+1.7 pts

41▲2Madison County, ILIL263,1102.9%+1.0 pts

42▲8Coles County, ILIL46,6072.9%+1.3 pts

43▼8Ford County, ILIL13,2162.8%+1.4 pts

44▼4Clinton County, ILIL37,1282.7%+0.6 pts

45▲1Carroll County, ILIL15,4192.6%+0.6 pts

46▲3De Witt County, ILIL15,1182.6%+0.8 pts

47▲1McDonough County, ILIL25,9162.4%+0.5 pts

48▲17Fayette County, ILIL20,7902.1%+1.3 pts

49▲9Fulton County, ILIL32,9012.0%+0.4 pts

50▲1Logan County, ILIL27,1821.9%−0.2 pts

51▲13Macon County, ILIL99,3001.9%+0.9 pts

52▲50Clay County, ILIL12,7931.9%+1.0 pts

53▲3Tazewell County, ILIL130,0491.9%+0.6 pts

54▼7Williamson County, ILIL67,2251.9%+1.0 pts

55▲18Christian County, ILIL33,4431.8%+0.9 pts

56▲20Pope County, ILIL3,6721.8%−0.2 pts

57▲25Hancock County, ILIL16,8031.7%+1.4 pts

58▲3Jefferson County, ILIL36,1471.7%+0.2 pts

59Morgan County, ILIL32,5151.7%+0.2 pts

60▲26Adams County, ILIL64,2671.7%+0.9 pts

61▲9Crawford County, ILIL18,6481.6%+0.2 pts

62Clark County, ILIL15,1141.6%+1.3 pts

63▼9Stark County, ILIL5,3191.6%+0.5 pts

64▲13Franklin County, ILIL36,9161.5%+0.7 pts

65▼21Massac County, ILIL13,5021.5%+1.3 pts

66▲12Scott County, ILIL4,8661.5%+1.3 pts

67▼29Randolph County, ILIL29,9211.5%−0.2 pts

68Woodford County, ILIL38,1111.5%+0.4 pts

69▲5Montgomery County, ILIL28,0761.4%+0.5 pts

70▼17Lawrence County, ILIL13,7901.4%−0.3 pts

71▼2Sangamon County, ILIL194,1701.3%+0.3 pts

72▼9Monroe County, ILIL34,8401.3%+0.5 pts

73▼6Marion County, ILIL36,3821.3%0.0 pts

74▲16Richland County, ILIL15,2191.2%+0.9 pts

75▲6Pike County, ILIL14,2311.2%+0.7 pts

76▲11Jersey County, ILIL21,1601.2%+0.4 pts

77▲12White County, ILIL13,2501.2%+0.6 pts

78▲14Mason County, ILIL12,4111.2%+0.6 pts

79▲20Gallatin County, ILIL4,6161.1%+1.0 pts

80▲17Jasper County, ILIL9,0321.1%+0.5 pts

81▼36Bond County, ILIL16,9591.1%−0.7 pts

82▼16Henderson County, ILIL5,9841.0%+0.7 pts

83▲17Schuyler County, ILIL6,6571.0%0.0 pts

84▲4Menard County, ILIL11,8631.0%+0.5 pts

85▲9Washington County, ILIL13,5640.9%0.0 pts

86▼31Effingham County, ILIL34,5190.9%−0.4 pts

87▼4Piatt County, ILIL16,7910.8%+0.2 pts

88▼9Moultrie County, ILIL14,3710.8%+0.4 pts

89▲7Shelby County, ILIL20,5760.8%+0.2 pts

90▼18Saline County, ILIL22,7720.8%−0.5 pts

91Hardin County, ILIL3,5880.8%+0.1 pts

92▲1Macoupin County, ILIL43,7480.8%+0.1 pts

93▼36Pulaski County, ILIL4,8200.7%−0.6 pts

94▲1Wayne County, ILIL15,8820.6%−0.2 pts

95▼11Edgar County, ILIL16,3230.6%+0.2 pts

96▼16Greene County, ILIL11,3130.4%−0.2 pts

97▼37Wabash County, ILIL10,9070.4%−0.3 pts

98Alexander County, ILIL4,5700.4%+0.2 pts

99▼28Hamilton County, ILIL7,8590.2%+0.1 pts

100▲1Edwards County, ILIL5,8980.2%–

101▼16Cumberland County, ILIL10,2080.1%−0.3 pts

102▼27Calhoun County, ILIL4,3000.1%−0.1 pts

SHOWING 1–102 OF 102

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