RANKING · 2010 CENSUS · 39 SHOWN OF 39

Fastest shrinking, Washington counties · 2010

Washington counties with the steepest population decline from the 2000 census to 2010. This list covers the 39 counties in Washington that qualify, ranked against each other statewide.

Flip the list · Fastest growing, US counties →

WashingtonAll states All rankings

SAME RANKING BYCities States Metros

RELATEDLargest by population Fastest growing Most population gained Most population lost Most densely populated Most sparsely populated

YEAR2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION GROWTHVS 2000

01Garfield County, WAWA2,416-5.5%−12.1 pts

02Pacific County, WAWA24,357-0.3%−11.4 pts

03Columbia County, WAWA4,141+0.3%−0.6 pts

04Lincoln County, WAWA11,982+3.8%−11.1 pts

05Okanogan County, WAWA45,230+3.9%−14.7 pts

06Ferry County, WAWA7,517+4.0%−11.3 pts

07Wahkiakum County, WAWA4,873+4.0%−10.9 pts

08Asotin County, WAWA22,545+5.2%−11.5 pts

09Klickitat County, WAWA24,331+6.0%−9.3 pts

10Walla Walla County, WAWA62,361+6.5%−7.4 pts

11Kitsap County, WAWA283,374+8.3%−14.0 pts

12Grays Harbor County, WAWA78,144+8.3%+3.6 pts

13Stevens County, WAWA49,668+8.6%−20.8 pts

14Chelan County, WAWA81,941+8.8%−18.7 pts

15Yakima County, WAWA259,185+9.3%−8.6 pts

16Island County, WAWA85,657+9.7%−9.2 pts

17Whitman County, WAWA48,512+9.9%+4.8 pts

18Lewis County, WAWA88,062+10.0%−5.6 pts

19Cowlitz County, WAWA114,885+10.2%−3.0 pts

20Clallam County, WAWA78,202+10.7%−3.6 pts

21Pend Oreille County, WAWA14,457+10.8%−20.8 pts

22King County, WAWA2,344,939+11.2%−4.1 pts

23San Juan County, WAWA18,577+12.0%−28.3 pts

24Skamania County, WAWA12,669+12.1%−7.0 pts

25Spokane County, WAWA558,344+12.7%−2.9 pts

26Pierce County, WAWA946,288+13.5%−6.1 pts

27Skagit County, WAWA132,975+13.5%−15.9 pts

28Adams County, WAWA21,488+14.0%−6.8 pts

29Jefferson County, WAWA33,970+15.1%−13.7 pts

30Snohomish County, WAWA870,656+17.7%−12.4 pts

31Douglas County, WAWA46,473+17.9%−6.5 pts

32Grant County, WAWA105,727+19.3%−17.1 pts

33Whatcom County, WAWA236,392+20.6%−10.0 pts

34Thurston County, WAWA304,261+21.7%−6.9 pts

35Kittitas County, WAWA48,803+22.6%−2.2 pts

36Mason County, WAWA71,165+22.9%−6.0 pts

37Benton County, WAWA221,722+23.0%−3.6 pts

38Clark County, WAWA532,119+23.2%−21.8 pts

39Franklin County, WAWA102,612+58.4%+26.7 pts

SHOWING 1–39 OF 39

Download CSV (full list, 39 rows)

UPDATED 2026-08-08 · DATA: US CENSUS BUREAU DECENNIAL CENSUS