RANKING · 1990 CENSUS · 102 SHOWN OF 102

Newest housing stock, Illinois counties · 1990

Illinois counties ranked by median year housing was built (1990 ACS). This list covers the 102 counties in Illinois that qualify, ranked against each other statewide. The median across all 102 is 1958.

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SAME RANKING BYCities States Metros ZIP codes

YEAR1990 2010 2020 2024

RANKPLACESTATEPOPMEDIAN YEAR BUILTVS –

01DuPage County, ILIL934,2981972–

02Johnson County, ILIL13,3631970–

03Kendall County, ILIL145,4701969–

04McHenry County, ILIL317,7511969–

05Effingham County, ILIL34,5191968–

06Lake County, ILIL719,3391968–

07Will County, ILIL712,2531968–

08Jackson County, ILIL52,5011967–

09Clinton County, ILIL37,1281966–

10Champaign County, ILIL209,9721966–

11McLean County, ILIL171,4191966–

12Boone County, ILIL53,5681964–

13Grundy County, ILIL54,0521964–

14Monroe County, ILIL34,8401963–

15Cumberland County, ILIL10,2081963–

16Gallatin County, ILIL4,6161963–

17Pope County, ILIL3,6721963–

18Putnam County, ILIL5,6191963–

19Union County, ILIL16,6561963–

20Williamson County, ILIL67,2251963–

21Kane County, ILIL525,7571962–

22Jasper County, ILIL9,0321962–

23Jefferson County, ILIL36,1471962–

24Jersey County, ILIL21,1601962–

25Perry County, ILIL20,1601962–

26Henderson County, ILIL5,9841961–

27Sangamon County, ILIL194,1701961–

28Alexander County, ILIL4,5701961–

29DeKalb County, ILIL101,8351961–

30Marion County, ILIL36,3821961–

31Pulaski County, ILIL4,8201961–

32Randolph County, ILIL29,9211961–

33Tazewell County, ILIL130,0491961–

34St. Clair County, ILIL250,7081960–

35Clay County, ILIL12,7931960–

36McDonough County, ILIL25,9161960–

37Massac County, ILIL13,5021960–

38Menard County, ILIL11,8631960–

39Morgan County, ILIL32,5151960–

40Richland County, ILIL15,2191960–

41Wayne County, ILIL15,8821960–

42Winnebago County, ILIL283,6741960–

43Woodford County, ILIL38,1111960–

44Bond County, ILIL16,9591959–

45Hardin County, ILIL3,5881959–

46Kankakee County, ILIL105,5251959–

47Coles County, ILIL46,6071958–

48Saline County, ILIL22,7721958–

49Edwards County, ILIL5,8981958–

50Madison County, ILIL263,1101958–

51Piatt County, ILIL16,7911958–

52Shelby County, ILIL20,5761958–

53Calhoun County, ILIL4,3001957–

54Douglas County, ILIL19,8801957–

55Fayette County, ILIL20,7901957–

56Macon County, ILIL99,3001957–

57Mason County, ILIL12,4111957–

58Ogle County, ILIL51,3991957–

59Wabash County, ILIL10,9071957–

60Washington County, ILIL13,5641957–

61White County, ILIL13,2501957–

62Rock Island County, ILIL141,8691956–

63Clark County, ILIL15,1141956–

64Hamilton County, ILIL7,8591956–

65Peoria County, ILIL178,5531956–

66Crawford County, ILIL18,6481955–

67Logan County, ILIL27,1821955–

68Moultrie County, ILIL14,3711955–

69Cook County, ILIL5,194,6251954–

70Macoupin County, ILIL43,7481954–

71Vermilion County, ILIL71,2591954–

72Whiteside County, ILIL54,1211954–

73Lawrence County, ILIL13,7901953–

74De Witt County, ILIL15,1181953–

75Adams County, ILIL64,2671952–

76Cass County, ILIL12,4631952–

77Franklin County, ILIL36,9161952–

78Henry County, ILIL48,0951952–

79Iroquois County, ILIL26,1501952–

80Livingston County, ILIL35,0571952–

81Marshall County, ILIL11,4731952–

82Schuyler County, ILIL6,6571952–

83Christian County, ILIL33,4431951–

84Jo Daviess County, ILIL21,5941951–

85Knox County, ILIL47,7671951–

86Stephenson County, ILIL43,2201951–

87Warren County, ILIL16,2221951–

88Greene County, ILIL11,3131950–

89LaSalle County, ILIL107,7731950–

90Lee County, ILIL32,9141950–

91Montgomery County, ILIL28,0761950–

92Pike County, ILIL14,2311950–

93Edgar County, ILIL16,3231949–

94Brown County, ILIL6,4011948–

95Fulton County, ILIL32,9011948–

96Mercer County, ILIL15,2291948–

97Ford County, ILIL13,2161947–

98Hancock County, ILIL16,8031946–

99Scott County, ILIL4,8661946–

100Carroll County, ILIL15,4191944–

101Bureau County, ILIL32,5101940–

102Stark County, ILIL5,3191939–

SHOWING 1–102 OF 102

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