RANKING · 1990 CENSUS · 102 SHOWN OF 102

Fewest graduate degrees, Illinois counties · 1990

Illinois counties with the smallest share of adults 25+ holding a graduate or professional degree (1990 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

RANKPLACESTATEPOPGRADUATE DEGREEVS –

01Lawrence County, ILIL13,7901.9%–

02Henderson County, ILIL5,9842.2%–

03Pulaski County, ILIL4,8202.2%–

04Perry County, ILIL20,1602.2%–

05Scott County, ILIL4,8662.3%–

06Pike County, ILIL14,2312.3%–

07Franklin County, ILIL36,9162.4%–

08Washington County, ILIL13,5642.4%–

09Edwards County, ILIL5,8982.5%–

10Pope County, ILIL3,6722.5%–

11Montgomery County, ILIL28,0762.5%–

12Marshall County, ILIL11,4732.6%–

13Hardin County, ILIL3,5882.6%–

14Hamilton County, ILIL7,8592.6%–

15Cumberland County, ILIL10,2082.7%–

16Gallatin County, ILIL4,6162.7%–

17Greene County, ILIL11,3132.7%–

18Schuyler County, ILIL6,6572.8%–

19Wayne County, ILIL15,8822.8%–

20Jasper County, ILIL9,0322.8%–

21Clark County, ILIL15,1142.8%–

22Clay County, ILIL12,7932.8%–

23Alexander County, ILIL4,5702.9%–

24Clinton County, ILIL37,1282.9%–

25Mason County, ILIL12,4112.9%–

26Massac County, ILIL13,5022.9%–

27Livingston County, ILIL35,0572.9%–

28Randolph County, ILIL29,9213.0%–

29Stark County, ILIL5,3193.0%–

30Fayette County, ILIL20,7903.0%–

31Moultrie County, ILIL14,3713.0%–

32Fulton County, ILIL32,9013.0%–

33Carroll County, ILIL15,4193.1%–

34Christian County, ILIL33,4433.1%–

35Mercer County, ILIL15,2293.1%–

36Jersey County, ILIL21,1603.1%–

37Cass County, ILIL12,4633.2%–

38Calhoun County, ILIL4,3003.2%–

39Iroquois County, ILIL26,1503.2%–

40White County, ILIL13,2503.2%–

41Macoupin County, ILIL43,7483.3%–

42Bureau County, ILIL32,5103.3%–

43De Witt County, ILIL15,1183.3%–

44Marion County, ILIL36,3823.3%–

45Monroe County, ILIL34,8403.3%–

46Crawford County, ILIL18,6483.3%–

47Brown County, ILIL6,4013.4%–

48Jo Daviess County, ILIL21,5943.4%–

49Johnson County, ILIL13,3633.4%–

50Putnam County, ILIL5,6193.4%–

51LaSalle County, ILIL107,7733.4%–

52Ogle County, ILIL51,3993.5%–

53Menard County, ILIL11,8633.5%–

54Whiteside County, ILIL54,1213.5%–

55Richland County, ILIL15,2193.6%–

56Saline County, ILIL22,7723.6%–

57Edgar County, ILIL16,3233.7%–

58Jefferson County, ILIL36,1473.7%–

59Effingham County, ILIL34,5193.8%–

60Shelby County, ILIL20,5763.8%–

61Logan County, ILIL27,1823.8%–

62Douglas County, ILIL19,8803.8%–

63Hancock County, ILIL16,8033.9%–

64Stephenson County, ILIL43,2203.9%–

65Ford County, ILIL13,2163.9%–

66Wabash County, ILIL10,9073.9%–

67Tazewell County, ILIL130,0493.9%–

68Grundy County, ILIL54,0523.9%–

69Kankakee County, ILIL105,5254.0%–

70Union County, ILIL16,6564.0%–

71Lee County, ILIL32,9144.0%–

72Vermilion County, ILIL71,2594.1%–

73Boone County, ILIL53,5684.2%–

74Knox County, ILIL47,7674.2%–

75Henry County, ILIL48,0954.2%–

76Adams County, ILIL64,2674.4%–

77Bond County, ILIL16,9594.5%–

78Rock Island County, ILIL141,8694.5%–

79Warren County, ILIL16,2224.6%–

80Madison County, ILIL263,1104.9%–

81Woodford County, ILIL38,1115.0%–

82Williamson County, ILIL67,2255.0%–

83Macon County, ILIL99,3005.0%–

84Winnebago County, ILIL283,6745.2%–

85Piatt County, ILIL16,7915.2%–

86Kendall County, ILIL145,4705.3%–

87St. Clair County, ILIL250,7085.4%–

88Morgan County, ILIL32,5155.7%–

89Will County, ILIL712,2535.9%–

90McHenry County, ILIL317,7516.4%–

91Peoria County, ILIL178,5536.6%–

92Kane County, ILIL525,7577.0%–

93Coles County, ILIL46,6078.1%–

94Sangamon County, ILIL194,1708.2%–

95Cook County, ILIL5,194,6258.3%–

96McLean County, ILIL171,4199.0%–

97McDonough County, ILIL25,91610.4%–

98DeKalb County, ILIL101,83511.2%–

99Lake County, ILIL719,33911.5%–

100DuPage County, ILIL934,29812.0%–

101Jackson County, ILIL52,50114.1%–

102Champaign County, ILIL209,97217.8%–

SHOWING 1–102 OF 102

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS