RANKING · 2010 CENSUS · 101 SHOWN OF 101

Highest Mexican population share, Illinois counties · 2010

Illinois counties ranked by the share of all residents who are Mexican origin (2010 American Community Survey). A concentration measure: Mexican residents as a percentage of total population. This list covers the 101 counties in Illinois that qualify, ranked against each other statewide. The median across all 101 is 1.6%.

Mexican Americans: full group profile →

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SAME RANKING BYCities States Metros

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

YEAR2010 2020 2024

RANKPLACESTATEPOPMEXICAN SHAREVS –

01Kane County, ILIL525,75726.1%–

02Cook County, ILIL5,194,62518.0%–

03Boone County, ILIL53,56817.8%–

04Lake County, ILIL719,33915.5%–

05Will County, ILIL712,25312.5%–

06Kendall County, ILIL145,47012.2%–

07Cass County, ILIL12,46312.0%–

08DuPage County, ILIL934,2989.9%–

09Rock Island County, ILIL141,8699.9%–

10McHenry County, ILIL317,7518.9%–

11Whiteside County, ILIL54,1218.9%–

12Winnebago County, ILIL283,6748.4%–

13Ogle County, ILIL51,3997.8%–

14DeKalb County, ILIL101,8357.7%–

15Kankakee County, ILIL105,5257.1%–

16Grundy County, ILIL54,0526.8%–

17LaSalle County, ILIL107,7736.3%–

18Warren County, ILIL16,2226.3%–

19Bureau County, ILIL32,5106.0%–

20Douglas County, ILIL19,8805.4%–

21Brown County, ILIL6,4015.2%–

22Iroquois County, ILIL26,1504.7%–

23Union County, ILIL16,6564.2%–

24Henry County, ILIL48,0953.7%–

25Vermilion County, ILIL71,2593.6%–

26Lee County, ILIL32,9143.5%–

27Champaign County, ILIL209,9723.4%–

28Knox County, ILIL47,7673.3%–

29Putnam County, ILIL5,6193.1%–

30McLean County, ILIL171,4192.9%–

31Peoria County, ILIL178,5532.8%–

32Livingston County, ILIL35,0572.6%–

33Jo Daviess County, ILIL21,5942.3%–

34Logan County, ILIL27,1822.1%–

35Clinton County, ILIL37,1282.1%–

36St. Clair County, ILIL250,7082.1%–

37Carroll County, ILIL15,4192.0%–

38McDonough County, ILIL25,9162.0%–

39Pope County, ILIL3,6722.0%–

40Stephenson County, ILIL43,2201.9%–

41Johnson County, ILIL13,3631.9%–

42Madison County, ILIL263,1101.9%–

43De Witt County, ILIL15,1181.8%–

44Jackson County, ILIL52,5011.7%–

45Lawrence County, ILIL13,7901.7%–

46Bond County, ILIL16,9591.7%–

47Fulton County, ILIL32,9011.7%–

48Randolph County, ILIL29,9211.6%–

49Marshall County, ILIL11,4731.6%–

50Coles County, ILIL46,6071.6%–

51Perry County, ILIL20,1601.6%–

52Jefferson County, ILIL36,1471.5%–

53Morgan County, ILIL32,5151.5%–

54Crawford County, ILIL18,6481.4%–

55Ford County, ILIL13,2161.4%–

56Mercer County, ILIL15,2291.3%–

57Tazewell County, ILIL130,0491.3%–

58Effingham County, ILIL34,5191.3%–

59Saline County, ILIL22,7721.2%–

60Marion County, ILIL36,3821.2%–

61Pulaski County, ILIL4,8201.2%–

62Stark County, ILIL5,3191.1%–

63Woodford County, ILIL38,1111.1%–

64Schuyler County, ILIL6,6571.0%–

65Sangamon County, ILIL194,1701.0%–

66Macon County, ILIL99,3001.0%–

67Montgomery County, ILIL28,0760.9%–

68Washington County, ILIL13,5640.9%–

69Christian County, ILIL33,4430.9%–

70Clay County, ILIL12,7930.9%–

71Williamson County, ILIL67,2250.9%–

72Monroe County, ILIL34,8400.8%–

73Wayne County, ILIL15,8820.8%–

74Franklin County, ILIL36,9160.8%–

75Jersey County, ILIL21,1600.8%–

76Fayette County, ILIL20,7900.8%–

77Adams County, ILIL64,2670.7%–

78Wabash County, ILIL10,9070.7%–

79Hardin County, ILIL3,5880.7%–

80Macoupin County, ILIL43,7480.6%–

81Piatt County, ILIL16,7910.6%–

82Greene County, ILIL11,3130.6%–

83Jasper County, ILIL9,0320.6%–

84Mason County, ILIL12,4110.6%–

85Shelby County, ILIL20,5760.6%–

86White County, ILIL13,2500.6%–

87Pike County, ILIL14,2310.5%–

88Menard County, ILIL11,8630.5%–

89Edgar County, ILIL16,3230.5%–

90Cumberland County, ILIL10,2080.4%–

91Moultrie County, ILIL14,3710.4%–

92Richland County, ILIL15,2190.4%–

93Clark County, ILIL15,1140.4%–

94Henderson County, ILIL5,9840.3%–

95Hancock County, ILIL16,8030.3%–

96Alexander County, ILIL4,5700.3%–

97Massac County, ILIL13,5020.2%–

98Scott County, ILIL4,8660.2%–

99Calhoun County, ILIL4,3000.2%–

100Gallatin County, ILIL4,6160.2%–

101Hamilton County, ILIL7,8590.1%–

SHOWING 1–101 OF 101

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