RANKING · 1990 CENSUS · 102 SHOWN OF 102

Most sparsely populated, Illinois counties · 1990

Illinois counties with the fewest residents per square mile (1990). This list covers the 102 counties in Illinois that qualify, ranked against each other statewide. The median across all 102 is 47.

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SAME RANKING BYCities States Metros

YEAR1990 2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION DENSITYVS –

01Pope County, ILIL3,67212–

02Schuyler County, ILIL6,65717–

03Brown County, ILIL6,40119–

04Hamilton County, ILIL7,85920–

05Calhoun County, ILIL4,30021–

06Pike County, ILIL14,23121–

07Henderson County, ILIL5,98421–

08Gallatin County, ILIL4,61621–

09Jasper County, ILIL9,03221–

10Scott County, ILIL4,86623–

11Stark County, ILIL5,31923–

12Wayne County, ILIL15,88224–

13Washington County, ILIL13,56427–

14Hancock County, ILIL16,80327–

15Iroquois County, ILIL26,15028–

16Greene County, ILIL11,31328–

17Fayette County, ILIL20,79029–

18Hardin County, ILIL3,58829–

19Shelby County, ILIL20,57629–

20Ford County, ILIL13,21629–

21Mason County, ILIL12,41130–

22Mercer County, ILIL15,22931–

23Cumberland County, ILIL10,20831–

24Clay County, ILIL12,79331–

25Edgar County, ILIL16,32331–

26Clark County, ILIL15,11432–

27Johnson County, ILIL13,36333–

28Marshall County, ILIL11,47333–

29White County, ILIL13,25033–

30Edwards County, ILIL5,89833–

31Warren County, ILIL16,22235–

32Piatt County, ILIL16,79135–

33Menard County, ILIL11,86336–

34Cass County, ILIL12,46336–

35Putnam County, ILIL5,61936–

36Jo Daviess County, ILIL21,59436–

37Livingston County, ILIL35,05738–

38Carroll County, ILIL15,41938–

39Pulaski County, ILIL4,82038–

40Bond County, ILIL16,95939–

41Bureau County, ILIL32,51041–

42Moultrie County, ILIL14,37141–

43De Witt County, ILIL15,11842–

44Union County, ILIL16,65643–

45Lawrence County, ILIL13,79043–

46Montgomery County, ILIL28,07644–

47Crawford County, ILIL18,64844–

48Fulton County, ILIL32,90144–

49Alexander County, ILIL4,57045–

50Richland County, ILIL15,21946–

51Douglas County, ILIL19,88047–

52Lee County, ILIL32,91447–

53Perry County, ILIL20,16048–

54Christian County, ILIL33,44349–

55Logan County, ILIL27,18250–

56Macoupin County, ILIL43,74855–

57Jersey County, ILIL21,16056–

58Monroe County, ILIL34,84058–

59Wabash County, ILIL10,90759–

60McDonough County, ILIL25,91660–

61Randolph County, ILIL29,92160–

62Ogle County, ILIL51,39961–

63Woodford County, ILIL38,11162–

64Henry County, ILIL48,09562–

65Massac County, ILIL13,50262–

66Morgan County, ILIL32,51564–

67Jefferson County, ILIL36,14765–

68Effingham County, ILIL34,51966–

69Saline County, ILIL22,77270–

70Clinton County, ILIL37,12872–

71Marion County, ILIL36,38273–

72Adams County, ILIL64,26777–

73Grundy County, ILIL54,05277–

74Knox County, ILIL47,76779–

75Stephenson County, ILIL43,22085–

76Whiteside County, ILIL54,12188–

77LaSalle County, ILIL107,77394–

78Vermilion County, ILIL71,25998–

79Franklin County, ILIL36,91699–

80Coles County, ILIL46,607102–

81Jackson County, ILIL52,501105–

82McLean County, ILIL171,419109–

83Boone County, ILIL53,568110–

84Kendall County, ILIL145,470123–

85DeKalb County, ILIL101,835123–

86Williamson County, ILIL67,225137–

87Kankakee County, ILIL105,525142–

88Champaign County, ILIL209,972174–

89Tazewell County, ILIL130,049191–

90Macon County, ILIL99,300202–

91Sangamon County, ILIL194,170205–

92Peoria County, ILIL178,553296–

93McHenry County, ILIL317,751304–

94Rock Island County, ILIL141,869348–

95Madison County, ILIL263,110348–

96St. Clair County, ILIL250,708400–

97Will County, ILIL712,253427–

98Winnebago County, ILIL283,674493–

99Kane County, ILIL525,757611–

100Lake County, ILIL719,3391,164–

101DuPage County, ILIL934,2982,384–

102Cook County, ILIL5,194,6255,403–

SHOWING 1–102 OF 102

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