RANKING · 2000 CENSUS · 39 SHOWN OF 39

Most population lost, Washington counties · 2000

Washington counties that lost the most residents from the 1990 census to 2000, by raw count of people rather than percentage. This list covers the 39 counties in Washington that qualify, ranked against each other statewide. The median across all 39 is +8,061.

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SAME RANKING BYCities States Metros

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

YEAR2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION CHANGEVS –

01Columbia County, WAWA4,141+40–

02Garfield County, WAWA2,416+149–

03Wahkiakum County, WAWA4,873+497–

04Ferry County, WAWA7,517+965–

05Lincoln County, WAWA11,982+1,320–

06Skamania County, WAWA12,669+1,583–

07Whitman County, WAWA48,512+1,965–

08Pacific County, WAWA24,357+2,102–

09Klickitat County, WAWA24,331+2,545–

10Pend Oreille County, WAWA14,457+2,817–

11Adams County, WAWA21,488+2,825–

12Asotin County, WAWA22,545+2,946–

13Grays Harbor County, WAWA78,144+3,019–

14San Juan County, WAWA18,577+4,042–

15Jefferson County, WAWA33,970+5,807–

16Okanogan County, WAWA45,230+6,214–

17Douglas County, WAWA46,473+6,398–

18Kittitas County, WAWA48,803+6,637–

19Walla Walla County, WAWA62,361+6,741–

20Clallam County, WAWA78,202+8,061–

21Stevens County, WAWA49,668+9,118–

22Lewis County, WAWA88,062+9,242–

23Cowlitz County, WAWA114,885+10,829–

24Mason County, WAWA71,165+11,064–

25Island County, WAWA85,657+11,363–

26Franklin County, WAWA102,612+11,874–

27Chelan County, WAWA81,941+14,366–

28Grant County, WAWA105,727+19,940–

29Skagit County, WAWA132,975+23,424–

30Benton County, WAWA221,722+29,915–

31Yakima County, WAWA259,185+33,758–

32Whatcom County, WAWA236,392+39,034–

33Kitsap County, WAWA283,374+42,238–

34Thurston County, WAWA304,261+46,117–

35Spokane County, WAWA558,344+56,575–

36Clark County, WAWA532,119+107,185–

37Pierce County, WAWA946,288+114,617–

38Snohomish County, WAWA870,656+140,382–

39King County, WAWA2,344,939+229,715–

SHOWING 1–39 OF 39

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