RANKING · 2010 CENSUS · 39 SHOWN OF 39

Largest senior population, Washington counties · 2010

Washington counties home to the most residents aged 65 and over as of 2010. Ranked by number of people, not the senior share. This list covers the 39 counties in Washington that qualify, ranked against each other statewide.

WashingtonAll states All rankings

SAME RANKING BYCities States Metros

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPRESIDENTS 65 AND OVERVS 2000

01King County, WAWA2,344,939210,679+16%

02Pierce County, WAWA946,28887,785+23%

03Snohomish County, WAWA870,65673,544+33%

04Spokane County, WAWA558,34460,969+17%

05Clark County, WAWA532,11948,710+48%

06Kitsap County, WAWA283,37433,296+36%

07Thurston County, WAWA304,26132,764+39%

08Yakima County, WAWA259,18528,122+13%

09Whatcom County, WAWA236,39226,640+37%

10Benton County, WAWA221,72220,586+40%

11Skagit County, WAWA132,97518,876+26%

12Clallam County, WAWA78,20217,189+25%

13Cowlitz County, WAWA114,88515,805+28%

14Island County, WAWA85,65714,439+41%

15Lewis County, WAWA88,06213,076+23%

16Grays Harbor County, WAWA78,14411,849+15%

17Chelan County, WAWA81,94111,175+21%

18Mason County, WAWA71,16511,112+36%

19Grant County, WAWA105,72710,531+22%

20Walla Walla County, WAWA62,3618,778+7%

21Jefferson County, WAWA33,9707,842+43%

22Stevens County, WAWA49,6687,516+46%

23Okanogan County, WAWA45,2307,070+27%

24Franklin County, WAWA102,6125,696+36%

25Douglas County, WAWA46,4735,443+32%

26Kittitas County, WAWA48,8035,212+35%

27Pacific County, WAWA24,3575,183+9%

28Whitman County, WAWA48,5124,257+13%

29Asotin County, WAWA22,5454,172+24%

30San Juan County, WAWA18,5773,657+37%

31Klickitat County, WAWA24,3313,625+37%

32Pend Oreille County, WAWA14,4572,485+42%

33Lincoln County, WAWA11,9822,197+14%

34Adams County, WAWA21,4881,915+12%

35Skamania County, WAWA12,6691,596+47%

36Ferry County, WAWA7,5171,428+56%

37Wahkiakum County, WAWA4,8731,015+44%

38Columbia County, WAWA4,141937+24%

39Garfield County, WAWA2,416506+1%

SHOWING 1–39 OF 39

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS