RANKING · 1990 CENSUS · 102 SHOWN OF 102

Most educated, Illinois counties · 1990

Illinois counties ranked by the share of adults 25+ holding a bachelor's degree or higher (1990 ACS). This list covers the 102 counties in Illinois that qualify, ranked against each other statewide. The median across all 102 is 11.1%.

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SAME RANKING BYCities States Metros ZIP codes

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPBACHELOR'S DEGREE OR HIGHERVS –

01DuPage County, ILIL934,29836.0%–

02Champaign County, ILIL209,97234.1%–

03Lake County, ILIL719,33932.0%–

04Jackson County, ILIL52,50129.5%–

05McLean County, ILIL171,41929.0%–

06DeKalb County, ILIL101,83526.1%–

07McDonough County, ILIL25,91623.2%–

08Cook County, ILIL5,194,62522.8%–

09Sangamon County, ILIL194,17022.4%–

10Kane County, ILIL525,75721.4%–

11McHenry County, ILIL317,75121.0%–

12Peoria County, ILIL178,55319.5%–

13Coles County, ILIL46,60718.7%–

14Will County, ILIL712,25318.0%–

15Kendall County, ILIL145,47017.8%–

16Winnebago County, ILIL283,67416.7%–

17Morgan County, ILIL32,51516.0%–

18Piatt County, ILIL16,79115.9%–

19Woodford County, ILIL38,11115.4%–

20Rock Island County, ILIL141,86915.0%–

21Macon County, ILIL99,30014.8%–

22St. Clair County, ILIL250,70814.7%–

23Warren County, ILIL16,22214.5%–

24Hancock County, ILIL16,80314.4%–

25Madison County, ILIL263,11014.4%–

26Williamson County, ILIL67,22514.2%–

27Menard County, ILIL11,86313.8%–

28Monroe County, ILIL34,84013.7%–

29Adams County, ILIL64,26713.7%–

30Stephenson County, ILIL43,22013.6%–

31Tazewell County, ILIL130,04913.6%–

32Effingham County, ILIL34,51913.0%–

33Knox County, ILIL47,76712.7%–

34Bond County, ILIL16,95912.7%–

35Wabash County, ILIL10,90712.6%–

36Grundy County, ILIL54,05212.5%–

37Logan County, ILIL27,18212.5%–

38Bureau County, ILIL32,51012.5%–

39Ogle County, ILIL51,39912.1%–

40Ford County, ILIL13,21612.1%–

41Jo Daviess County, ILIL21,59412.1%–

42Boone County, ILIL53,56812.0%–

43Kankakee County, ILIL105,52511.9%–

44Richland County, ILIL15,21911.9%–

45De Witt County, ILIL15,11811.8%–

46Henry County, ILIL48,09511.8%–

47Lee County, ILIL32,91411.8%–

48Douglas County, ILIL19,88011.4%–

49Jefferson County, ILIL36,14711.3%–

50Mercer County, ILIL15,22911.3%–

51Vermilion County, ILIL71,25911.1%–

52Edgar County, ILIL16,32311.0%–

53Union County, ILIL16,65610.9%–

54Stark County, ILIL5,31910.8%–

55Schuyler County, ILIL6,65710.7%–

56Cass County, ILIL12,46310.6%–

57Carroll County, ILIL15,41910.6%–

58LaSalle County, ILIL107,77310.5%–

59Marshall County, ILIL11,47310.3%–

60Iroquois County, ILIL26,15010.1%–

61Whiteside County, ILIL54,1219.9%–

62Putnam County, ILIL5,6199.8%–

63Shelby County, ILIL20,5769.8%–

64Brown County, ILIL6,4019.8%–

65Marion County, ILIL36,3829.6%–

66Moultrie County, ILIL14,3719.5%–

67Crawford County, ILIL18,6489.5%–

68White County, ILIL13,2509.5%–

69Henderson County, ILIL5,9849.5%–

70Fulton County, ILIL32,9019.5%–

71Saline County, ILIL22,7729.4%–

72Livingston County, ILIL35,0579.4%–

73Christian County, ILIL33,4439.3%–

74Jersey County, ILIL21,1609.3%–

75Clark County, ILIL15,1149.2%–

76Clinton County, ILIL37,1289.2%–

77Macoupin County, ILIL43,7489.2%–

78Scott County, ILIL4,8669.2%–

79Johnson County, ILIL13,3639.1%–

80Greene County, ILIL11,3139.0%–

81Mason County, ILIL12,4118.8%–

82Wayne County, ILIL15,8828.7%–

83Washington County, ILIL13,5648.7%–

84Fayette County, ILIL20,7908.5%–

85Edwards County, ILIL5,8988.4%–

86Randolph County, ILIL29,9218.3%–

87Franklin County, ILIL36,9168.2%–

88Cumberland County, ILIL10,2088.2%–

89Jasper County, ILIL9,0328.1%–

90Montgomery County, ILIL28,0768.1%–

91Pike County, ILIL14,2318.1%–

92Massac County, ILIL13,5028.0%–

93Alexander County, ILIL4,5707.8%–

94Clay County, ILIL12,7937.6%–

95Hamilton County, ILIL7,8597.6%–

96Gallatin County, ILIL4,6167.4%–

97Perry County, ILIL20,1607.3%–

98Hardin County, ILIL3,5887.0%–

99Calhoun County, ILIL4,3007.0%–

100Lawrence County, ILIL13,7906.3%–

101Pope County, ILIL3,6726.3%–

102Pulaski County, ILIL4,8206.1%–

SHOWING 1–102 OF 102

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