RANKING · 2024 ACS · 102 SHOWN OF 102

Newest housing stock, Illinois counties

Illinois counties ranked by median year housing was built (2024 ACS). This list covers the 102 counties in Illinois that qualify, ranked against each other statewide. The median across all 102 is 1970. Biggest climber in the top 100 since 2020: Fayette County, IL, up 30 places to #38.

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SAME RANKING BYCities States Metros ZIP codes

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

01Kendall County, ILIL145,4702001+2%

02Will County, ILIL712,2531992+1%

03Monroe County, ILIL34,8401990+1%

04▲2Grundy County, ILIL54,0521990+1%

05▼1McHenry County, ILIL317,7511989+1%

06▼1Boone County, ILIL53,5681986+1%

07▲7Pope County, ILIL3,6721986+1%

08▼1Kane County, ILIL525,7571985+1%

09Johnson County, ILIL13,3631985+1%

10▼2Lake County, ILIL719,3391983+1%

11Champaign County, ILIL209,9721981+1%

12McLean County, ILIL171,4191981+1%

13▼3Williamson County, ILIL67,2251981+1%

14▼1DuPage County, ILIL934,29819780%

15DeKalb County, ILIL101,8351978+1%

16Effingham County, ILIL34,5191978+1%

17Clinton County, ILIL37,1281977+1%

18▲2Jefferson County, ILIL36,1471977+1%

19▼1Jackson County, ILIL52,50119760%

20▲5Jo Daviess County, ILIL21,5941976+1%

21▲5Menard County, ILIL11,8631976+1%

22St. Clair County, ILIL250,7081975+1%

23Bond County, ILIL16,9591975+1%

24Jasper County, ILIL9,0321975+1%

25▼4Jersey County, ILIL21,1601975+1%

26▼7Massac County, ILIL13,5021975+1%

27Putnam County, ILIL5,6191975+1%

28Union County, ILIL16,6561975+1%

29▲1Sangamon County, ILIL194,1701974+1%

30▲26Hardin County, ILIL3,5881974+1%

31▲6Wayne County, ILIL15,8821974+1%

32▲1Marion County, ILIL36,3821973+1%

33▲1Perry County, ILIL20,1601973+1%

34▲1Piatt County, ILIL16,7911973+1%

35▲6Richland County, ILIL15,2191973+1%

36▲2Henderson County, ILIL5,9841972+1%

37▼6Clay County, ILIL12,7931972+1%

38▲30Fayette County, ILIL20,7901972+1%

39Kankakee County, ILIL105,5251972+1%

40▲7Ogle County, ILIL51,3991972+1%

41▼1Randolph County, ILIL29,9211972+1%

42▼6Washington County, ILIL13,5641972+1%

43▼14Woodford County, ILIL38,1111972+1%

44▼1Coles County, ILIL46,6071971+1%

45▲4Saline County, ILIL22,7721971+1%

46▲14Clark County, ILIL15,1141971+1%

47▲4Madison County, ILIL263,1101971+1%

48▼6Schuyler County, ILIL6,6571971+1%

49▼1Winnebago County, ILIL283,6741971+1%

50▼6Cumberland County, ILIL10,20819700%

51▲10Edwards County, ILIL5,8981970+1%

52▼7Hamilton County, ILIL7,8591970+1%

53▲13Wabash County, ILIL10,9071970+1%

54▼2Alexander County, ILIL4,57019690%

55▼23Gallatin County, ILIL4,61619690%

56▼3Pulaski County, ILIL4,82019690%

57▲1Tazewell County, ILIL130,04919690%

58▼3Calhoun County, ILIL4,3001968+1%

59▲8Cass County, ILIL12,4631968+1%

60▼14Moultrie County, ILIL14,3711968+1%

61▼11Douglas County, ILIL19,8801967+1%

62▲2Macoupin County, ILIL43,7481966+1%

63▲6Peoria County, ILIL178,5531966+1%

64▼10Shelby County, ILIL20,57619660%

65▲5Crawford County, ILIL18,6481965+1%

66▼3Adams County, ILIL64,2671965+1%

67▼10McDonough County, ILIL25,91619650%

68▼3Morgan County, ILIL32,51519650%

69▲19Edgar County, ILIL16,3231964+1%

70▲6Hancock County, ILIL16,8031964+1%

71▲14Logan County, ILIL27,18219640%

72Macon County, ILIL99,30019640%

73▲1Montgomery County, ILIL28,0761964+1%

74▲7Lawrence County, ILIL13,7901963+1%

75Christian County, ILIL33,4431963+1%

76▼14Franklin County, ILIL36,9161963+1%

77LaSalle County, ILIL107,7731963+1%

78▲19Scott County, ILIL4,8661963+1%

79▲3Rock Island County, ILIL141,86919620%

80▲14Mercer County, ILIL15,2291962+1%

81▲5White County, ILIL13,25019620%

82▲5Cook County, ILIL5,194,62519610%

83Henry County, ILIL48,09519610%

84▲7Livingston County, ILIL35,05719610%

85▼12Marshall County, ILIL11,47319610%

86▼7Pike County, ILIL14,2311961+1%

87▼7Whiteside County, ILIL54,12119610%

88▼29Brown County, ILIL6,4011960+1%

89Fulton County, ILIL32,9011960+1%

90▼6Iroquois County, ILIL26,15019600%

91▼1Lee County, ILIL32,9141960+1%

92Stephenson County, ILIL43,22019600%

93▼15Mason County, ILIL12,41119590%

94▲1Bureau County, ILIL32,5101958+1%

95▼24De Witt County, ILIL15,11819580%

96▼3Carroll County, ILIL15,4191957+1%

97▲5Greene County, ILIL11,31319570%

98▼2Knox County, ILIL47,76719570%

99▲1Vermilion County, ILIL71,25919570%

100▼1Stark County, ILIL5,3191956+1%

101Warren County, ILIL16,22219560%

102▼4Ford County, ILIL13,21619550%

SHOWING 1–102 OF 102

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES