RANKING · 2024 ACS · 39 SHOWN OF 39

Oldest housing stock, Washington counties

Washington counties ranked by oldest median year of construction (2024 ACS). This list covers the 39 counties in Washington that qualify, ranked against each other statewide. The median across all 39 is 1985. Biggest climber in the top 100 since 2020: Okanogan County, WA, up 6 places to #16.

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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

01▲1Columbia County, WAWA4,14119530%

02▼1Garfield County, WAWA2,4161957+1%

03Lincoln County, WAWA11,9821972+1%

04Walla Walla County, WAWA62,3611973+1%

05▲3Grays Harbor County, WAWA78,1441974+1%

06▲3Asotin County, WAWA22,5451976+1%

07Cowlitz County, WAWA114,8851976+1%

08▼3Yakima County, WAWA259,1851977+1%

09▲1Whitman County, WAWA48,5121977+1%

10▼4Adams County, WAWA21,4881977+1%

11▲5Wahkiakum County, WAWA4,8731978+1%

12▲1Spokane County, WAWA558,3441978+1%

13▼1Pacific County, WAWA24,3571979+1%

14▼3Lewis County, WAWA88,0621980+1%

15▲3Clallam County, WAWA78,2021982+1%

16▲6Okanogan County, WAWA45,2301982+1%

17Chelan County, WAWA81,9411983+1%

18▲1King County, WAWA2,344,9391983+1%

19▲1Skamania County, WAWA12,6691984+1%

20▲6Ferry County, WAWA7,5171985+1%

21▼6Pend Oreille County, WAWA14,4571985+1%

22▲3Stevens County, WAWA49,6681985+1%

23▲6Kitsap County, WAWA283,3741986+1%

24▼10Klickitat County, WAWA24,3311986+1%

25▲2Pierce County, WAWA946,2881986+1%

26▼2Skagit County, WAWA132,9751986+1%

27▼4Benton County, WAWA221,7221988+1%

28▼7Douglas County, WAWA46,4731988+1%

29▼1Grant County, WAWA105,7271988+1%

30▲1Jefferson County, WAWA33,9701988+1%

31▲5San Juan County, WAWA18,5771988+1%

32▼2Whatcom County, WAWA236,3921989+1%

33▲1Mason County, WAWA71,1651989+1%

34▲1Snohomish County, WAWA870,6561990+1%

35▼3Island County, WAWA85,6571991+1%

36▲1Thurston County, WAWA304,2611991+1%

37▲1Clark County, WAWA532,1191993+1%

38▼5Kittitas County, WAWA48,8031993+1%

39Franklin County, WAWA102,6121997+2%

SHOWING 1–39 OF 39

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