RANKING · 1990 CENSUS · 102 SHOWN OF 102

Least educated, Illinois counties · 1990

Illinois counties with the smallest share of adults 25+ holding a bachelor's degree or higher (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

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPBACHELOR'S DEGREE OR HIGHERVS 2000

01Pulaski County, ILIL4,8206.1%−14%

02Pope County, ILIL3,6726.3%−40%

03Lawrence County, ILIL13,7906.3%−35%

04Calhoun County, ILIL4,3007.0%−26%

05Hardin County, ILIL3,5887.0%−27%

06Perry County, ILIL20,1607.3%−27%

07Gallatin County, ILIL4,6167.4%−5%

08Hamilton County, ILIL7,8597.6%−28%

09Clay County, ILIL12,7937.6%−21%

10Alexander County, ILIL4,5707.8%+14%

11Massac County, ILIL13,5028.0%−25%

12Pike County, ILIL14,2318.1%−19%

13Montgomery County, ILIL28,0768.1%−28%

14Jasper County, ILIL9,0328.1%−28%

15Cumberland County, ILIL10,2088.2%−19%

16Franklin County, ILIL36,9168.2%−28%

17Randolph County, ILIL29,9218.3%−4%

18Edwards County, ILIL5,8988.4%−15%

19Fayette County, ILIL20,7908.5%−6%

20Washington County, ILIL13,5648.7%−35%

21Wayne County, ILIL15,8828.7%−13%

22Mason County, ILIL12,4118.8%−22%

23Greene County, ILIL11,3139.0%−11%

24Johnson County, ILIL13,3639.1%−22%

25Scott County, ILIL4,8669.2%−24%

26Macoupin County, ILIL43,7489.2%−22%

27Clinton County, ILIL37,1289.2%−29%

28Clark County, ILIL15,1149.2%−32%

29Jersey County, ILIL21,1609.3%−26%

30Christian County, ILIL33,4439.3%−11%

31Livingston County, ILIL35,0579.4%−26%

32Saline County, ILIL22,7729.4%−23%

33Fulton County, ILIL32,9019.5%−17%

34Henderson County, ILIL5,9849.5%−5%

35White County, ILIL13,2509.5%−9%

36Crawford County, ILIL18,6489.5%−7%

37Moultrie County, ILIL14,3719.5%−35%

38Marion County, ILIL36,3829.6%−21%

39Brown County, ILIL6,4019.8%+6%

40Shelby County, ILIL20,5769.8%−15%

41Putnam County, ILIL5,6199.8%−18%

42Whiteside County, ILIL54,1219.9%−13%

43Iroquois County, ILIL26,15010.1%−15%

44Marshall County, ILIL11,47310.3%−29%

45LaSalle County, ILIL107,77310.5%−21%

46Carroll County, ILIL15,41910.6%−20%

47Cass County, ILIL12,46310.6%−16%

48Schuyler County, ILIL6,65710.7%−8%

49Stark County, ILIL5,31910.8%−19%

50Union County, ILIL16,65610.9%−31%

51Edgar County, ILIL16,32311.0%−17%

52Vermilion County, ILIL71,25911.1%−11%

53Mercer County, ILIL15,22911.3%−11%

54Jefferson County, ILIL36,14711.3%−17%

55Douglas County, ILIL19,88011.4%−17%

56Lee County, ILIL32,91411.8%−11%

57Henry County, ILIL48,09511.8%−25%

58De Witt County, ILIL15,11811.8%−12%

59Richland County, ILIL15,21911.9%−22%

60Kankakee County, ILIL105,52511.9%−20%

61Boone County, ILIL53,56812.0%−17%

62Jo Daviess County, ILIL21,59412.1%−21%

63Ford County, ILIL13,21612.1%−13%

64Ogle County, ILIL51,39912.1%−29%

65Bureau County, ILIL32,51012.5%−20%

66Logan County, ILIL27,18212.5%−12%

67Grundy County, ILIL54,05212.5%−18%

68Wabash County, ILIL10,90712.6%+1%

69Bond County, ILIL16,95912.7%−15%

70Knox County, ILIL47,76712.7%−13%

71Effingham County, ILIL34,51913.0%−14%

72Tazewell County, ILIL130,04913.6%−25%

73Stephenson County, ILIL43,22013.6%−13%

74Adams County, ILIL64,26713.7%−22%

75Monroe County, ILIL34,84013.7%−33%

76Menard County, ILIL11,86313.8%−32%

77Williamson County, ILIL67,22514.2%−17%

78Madison County, ILIL263,11014.4%−25%

79Hancock County, ILIL16,80314.4%−8%

80Warren County, ILIL16,22214.5%−8%

81St. Clair County, ILIL250,70814.7%−24%

82Macon County, ILIL99,30014.8%−13%

83Rock Island County, ILIL141,86915.0%−12%

84Woodford County, ILIL38,11115.4%−27%

85Piatt County, ILIL16,79115.9%−25%

86Morgan County, ILIL32,51516.0%−20%

87Winnebago County, ILIL283,67416.7%−14%

88Kendall County, ILIL145,47017.8%−29%

89Will County, ILIL712,25318.0%−29%

90Coles County, ILIL46,60718.7%−10%

91Peoria County, ILIL178,55319.5%−17%

92McHenry County, ILIL317,75121.0%−24%

93Kane County, ILIL525,75721.4%−23%

94Sangamon County, ILIL194,17022.4%−22%

95Cook County, ILIL5,194,62522.8%−19%

96McDonough County, ILIL25,91623.2%−14%

97DeKalb County, ILIL101,83526.1%−3%

98McLean County, ILIL171,41929.0%−20%

99Jackson County, ILIL52,50129.5%−8%

100Lake County, ILIL719,33932.0%−17%

101Champaign County, ILIL209,97234.1%−10%

102DuPage County, ILIL934,29836.0%−14%

SHOWING 1–102 OF 102

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