RANKING · 2010 CENSUS · 102 SHOWN OF 102

Most income inequality (Gini), Illinois counties · 2010

Illinois counties ranked by Gini index of household income inequality, where 0 = perfect equality and 1 = maximum inequality (2023 ACS). This list covers the 102 counties in Illinois that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros ZIP codes

YEAR2010 2024

RANKPLACESTATEPOPINCOME INEQUALITY (GINI)VS 2000

01Jackson County, ILIL52,5010.509–

02Cook County, ILIL5,194,6250.488–

03Coles County, ILIL46,6070.488–

04Pulaski County, ILIL4,8200.480–

05Gallatin County, ILIL4,6160.478–

06Champaign County, ILIL209,9720.477–

07Peoria County, ILIL178,5530.474–

08Saline County, ILIL22,7720.469–

09Brown County, ILIL6,4010.469–

10Lake County, ILIL719,3390.468–

11McDonough County, ILIL25,9160.462–

12Hamilton County, ILIL7,8590.458–

13Scott County, ILIL4,8660.456–

14Jefferson County, ILIL36,1470.454–

15Adams County, ILIL64,2670.453–

16Hardin County, ILIL3,5880.452–

17Macon County, ILIL99,3000.452–

18Stark County, ILIL5,3190.447–

19Montgomery County, ILIL28,0760.444–

20Williamson County, ILIL67,2250.443–

21DuPage County, ILIL934,2980.442–

22St. Clair County, ILIL250,7080.442–

23Richland County, ILIL15,2190.442–

24Rock Island County, ILIL141,8690.441–

25Winnebago County, ILIL283,6740.441–

26Alexander County, ILIL4,5700.440–

27Effingham County, ILIL34,5190.439–

28Sangamon County, ILIL194,1700.437–

29Union County, ILIL16,6560.437–

30Wayne County, ILIL15,8820.437–

31Lawrence County, ILIL13,7900.436–

32Clay County, ILIL12,7930.436–

33Fayette County, ILIL20,7900.435–

34Greene County, ILIL11,3130.435–

35White County, ILIL13,2500.435–

36Carroll County, ILIL15,4190.434–

37Knox County, ILIL47,7670.433–

38Clark County, ILIL15,1140.431–

39McLean County, ILIL171,4190.430–

40Morgan County, ILIL32,5150.430–

41Christian County, ILIL33,4430.429–

42Marion County, ILIL36,3820.428–

43Wabash County, ILIL10,9070.428–

44Madison County, ILIL263,1100.427–

45Vermilion County, ILIL71,2590.427–

46Mason County, ILIL12,4110.424–

47Boone County, ILIL53,5680.423–

48Bureau County, ILIL32,5100.423–

49Kane County, ILIL525,7570.421–

50Calhoun County, ILIL4,3000.420–

51Edgar County, ILIL16,3230.420–

52Hancock County, ILIL16,8030.419–

53Lee County, ILIL32,9140.419–

54Stephenson County, ILIL43,2200.419–

55Cumberland County, ILIL10,2080.418–

56DeKalb County, ILIL101,8350.416–

57Bond County, ILIL16,9590.414–

58Edwards County, ILIL5,8980.414–

59De Witt County, ILIL15,1180.413–

60Franklin County, ILIL36,9160.413–

61Kankakee County, ILIL105,5250.413–

62Henry County, ILIL48,0950.411–

63Whiteside County, ILIL54,1210.411–

64Livingston County, ILIL35,0570.410–

65LaSalle County, ILIL107,7730.409–

66Jo Daviess County, ILIL21,5940.408–

67Henderson County, ILIL5,9840.407–

68Crawford County, ILIL18,6480.406–

69Logan County, ILIL27,1820.405–

70Shelby County, ILIL20,5760.405–

71Woodford County, ILIL38,1110.402–

72Macoupin County, ILIL43,7480.401–

73Marshall County, ILIL11,4730.400–

74Pike County, ILIL14,2310.400–

75Tazewell County, ILIL130,0490.400–

76Warren County, ILIL16,2220.400–

77Fulton County, ILIL32,9010.399–

78Johnson County, ILIL13,3630.398–

79Ford County, ILIL13,2160.397–

80Iroquois County, ILIL26,1500.397–

81Moultrie County, ILIL14,3710.397–

82Massac County, ILIL13,5020.396–

83Perry County, ILIL20,1600.395–

84Clinton County, ILIL37,1280.394–

85Cass County, ILIL12,4630.389–

86Monroe County, ILIL34,8400.386–

87McHenry County, ILIL317,7510.386–

88Randolph County, ILIL29,9210.386–

89Jersey County, ILIL21,1600.385–

90Piatt County, ILIL16,7910.384–

91Will County, ILIL712,2530.384–

92Mercer County, ILIL15,2290.383–

93Douglas County, ILIL19,8800.381–

94Putnam County, ILIL5,6190.380–

95Washington County, ILIL13,5640.379–

96Menard County, ILIL11,8630.377–

97Ogle County, ILIL51,3990.376–

98Grundy County, ILIL54,0520.373–

99Jasper County, ILIL9,0320.372–

100Schuyler County, ILIL6,6570.367–

101Pope County, ILIL3,6720.362–

102Kendall County, ILIL145,4700.332–

SHOWING 1–102 OF 102

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UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES