RANKING · 2024 ACS · 102 SHOWN OF 102

Oldest housing stock, Illinois counties

Illinois counties ranked by oldest median year of construction (2024 ACS). This list covers the 102 counties in Illinois that qualify, ranked against each other statewide.

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RELATEDMost expensive homes Cheapest homes Highest median rent Lowest median rent Highest homeownership rate Highest renter share

YEAR1990 2010 2020 2024

RANKPLACESTATEPOPMEDIAN YEAR BUILTVS 1990

01Ford County, ILIL13,2161955+0%

02Stark County, ILIL5,3191956+1%

03Warren County, ILIL16,2221956+0%

04Carroll County, ILIL15,4191957+1%

05Greene County, ILIL11,3131957+0%

06Knox County, ILIL47,7671957+0%

07Vermilion County, ILIL71,2591957+0%

08Bureau County, ILIL32,5101958+1%

09De Witt County, ILIL15,1181958+0%

10Mason County, ILIL12,4111959+0%

11Brown County, ILIL6,4011960+1%

12Fulton County, ILIL32,9011960+1%

13Iroquois County, ILIL26,1501960+0%

14Lee County, ILIL32,9141960+1%

15Stephenson County, ILIL43,2201960+0%

16Cook County, ILIL5,194,6251961+0%

17Henry County, ILIL48,0951961+0%

18Livingston County, ILIL35,0571961+0%

19Marshall County, ILIL11,4731961+0%

20Pike County, ILIL14,2311961+1%

21Whiteside County, ILIL54,1211961+0%

22Rock Island County, ILIL141,8691962+0%

23Mercer County, ILIL15,2291962+1%

24White County, ILIL13,2501962+0%

25Lawrence County, ILIL13,7901963+1%

26Christian County, ILIL33,4431963+1%

27Franklin County, ILIL36,9161963+1%

28LaSalle County, ILIL107,7731963+1%

29Scott County, ILIL4,8661963+1%

30Edgar County, ILIL16,3231964+1%

31Hancock County, ILIL16,8031964+1%

32Logan County, ILIL27,1821964+0%

33Macon County, ILIL99,3001964+0%

34Montgomery County, ILIL28,0761964+1%

35Crawford County, ILIL18,6481965+1%

36Adams County, ILIL64,2671965+1%

37McDonough County, ILIL25,9161965+0%

38Morgan County, ILIL32,5151965+0%

39Macoupin County, ILIL43,7481966+1%

40Peoria County, ILIL178,5531966+1%

41Shelby County, ILIL20,5761966+0%

42Douglas County, ILIL19,8801967+1%

43Calhoun County, ILIL4,3001968+1%

44Cass County, ILIL12,4631968+1%

45Moultrie County, ILIL14,3711968+1%

46Alexander County, ILIL4,5701969+0%

47Gallatin County, ILIL4,6161969+0%

48Pulaski County, ILIL4,8201969+0%

49Tazewell County, ILIL130,0491969+0%

50Cumberland County, ILIL10,2081970+0%

51Edwards County, ILIL5,8981970+1%

52Hamilton County, ILIL7,8591970+1%

53Wabash County, ILIL10,9071970+1%

54Coles County, ILIL46,6071971+1%

55Saline County, ILIL22,7721971+1%

56Clark County, ILIL15,1141971+1%

57Madison County, ILIL263,1101971+1%

58Schuyler County, ILIL6,6571971+1%

59Winnebago County, ILIL283,6741971+1%

60Henderson County, ILIL5,9841972+1%

61Clay County, ILIL12,7931972+1%

62Fayette County, ILIL20,7901972+1%

63Kankakee County, ILIL105,5251972+1%

64Ogle County, ILIL51,3991972+1%

65Randolph County, ILIL29,9211972+1%

66Washington County, ILIL13,5641972+1%

67Woodford County, ILIL38,1111972+1%

68Marion County, ILIL36,3821973+1%

69Perry County, ILIL20,1601973+1%

70Piatt County, ILIL16,7911973+1%

71Richland County, ILIL15,2191973+1%

72Sangamon County, ILIL194,1701974+1%

73Hardin County, ILIL3,5881974+1%

74Wayne County, ILIL15,8821974+1%

75St. Clair County, ILIL250,7081975+1%

76Bond County, ILIL16,9591975+1%

77Jasper County, ILIL9,0321975+1%

78Jersey County, ILIL21,1601975+1%

79Massac County, ILIL13,5021975+1%

80Putnam County, ILIL5,6191975+1%

81Union County, ILIL16,6561975+1%

82Jackson County, ILIL52,5011976+0%

83Jo Daviess County, ILIL21,5941976+1%

84Menard County, ILIL11,8631976+1%

85Clinton County, ILIL37,1281977+1%

86Jefferson County, ILIL36,1471977+1%

87DuPage County, ILIL934,2981978+0%

88DeKalb County, ILIL101,8351978+1%

89Effingham County, ILIL34,5191978+1%

90Champaign County, ILIL209,9721981+1%

91McLean County, ILIL171,4191981+1%

92Williamson County, ILIL67,2251981+1%

93Lake County, ILIL719,3391983+1%

94Kane County, ILIL525,7571985+1%

95Johnson County, ILIL13,3631985+1%

96Boone County, ILIL53,5681986+1%

97Pope County, ILIL3,6721986+1%

98McHenry County, ILIL317,7511989+1%

99Monroe County, ILIL34,8401990+1%

100Grundy County, ILIL54,0521990+1%

101Will County, ILIL712,2531992+1%

102Kendall County, ILIL145,4702001+2%

SHOWING 1–102 OF 102

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES