RANKING · 2010 CENSUS · 44 SHOWN OF 44

Oldest housing stock, Idaho counties · 2010

Idaho counties ranked by oldest median year of construction (2010 ACS). This list covers the 44 counties in Idaho that qualify, ranked against each other statewide. The median across all 44 is 1975.

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SAME RANKING BYCities States Metros ZIP codes

YEAR1990 2010 2020 2024

RANKPLACESTATEPOPMEDIAN YEAR BUILTVS 1990

01Shoshone County, IDID14,13019540%

02Butte County, IDID2,78319620%

03Oneida County, IDID5,0851962+1%

04Lewis County, IDID3,70419650%

05Lincoln County, IDID5,6031968+1%

06Cassia County, IDID26,39719690%

07Bear Lake County, IDID6,7271970+1%

08Clearwater County, IDID9,11819710%

09Gooding County, IDID16,44619710%

10Caribou County, IDID7,25219710%

11Clark County, IDID7831971+1%

12Minidoka County, IDID22,91119710%

13Nez Perce County, IDID42,90519710%

14Washington County, IDID11,58319710%

15Bannock County, IDID91,59119730%

16Bingham County, IDID51,15319730%

17Jerome County, IDID26,36219730%

18Twin Falls County, IDID97,5391974+1%

19Idaho County, IDID17,87419740%

20Camas County, IDID1,3161974+1%

21Franklin County, IDID15,8891974+1%

22Benewah County, IDID10,50819750%

23Boundary County, IDID13,99719750%

24Fremont County, IDID14,20819750%

25Bonneville County, IDID135,77119760%

26Latah County, IDID41,8421976+1%

27Lemhi County, IDID8,47419760%

28Owyhee County, IDID12,66119760%

29Payette County, IDID27,8241976+1%

30Power County, IDID8,24619760%

31Adams County, IDID5,01319770%

32Custer County, IDID4,63619780%

33Elmore County, IDID29,46519780%

34Gem County, IDID21,7731978+1%

35Jefferson County, IDID35,2971980+1%

36Blaine County, IDID25,51719820%

37Boise County, IDID8,54519830%

38Bonner County, IDID54,4201983+1%

39Valley County, IDID12,83119830%

40Madison County, IDID55,1721985+1%

41Kootenai County, IDID191,8641989+1%

42Ada County, IDID546,1411990+1%

43Canyon County, IDID275,1231991+1%

44Teton County, IDID13,2541992+1%

SHOWING 1–44 OF 44

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