RANKING · 1990 CENSUS · 39 SHOWN OF 39

Least educated, Washington counties · 1990

Washington counties with the smallest share of adults 25+ holding a bachelor's degree or higher (2023 ACS). This list covers the 39 counties in Washington that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros ZIP codes

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPBACHELOR'S DEGREE OR HIGHERVS 2000

01Wahkiakum County, WAWA4,87310.4%−29%

02Klickitat County, WAWA24,33110.9%−33%

03Grays Harbor County, WAWA78,14411.0%−13%

04Cowlitz County, WAWA114,88511.3%−15%

05Pacific County, WAWA24,35711.3%−26%

06Skamania County, WAWA12,66911.7%−30%

07Lewis County, WAWA88,06211.8%−8%

08Grant County, WAWA105,72711.9%−13%

09Pend Oreille County, WAWA14,45712.0%−2%

10Ferry County, WAWA7,51712.0%−11%

11Okanogan County, WAWA45,23012.0%−25%

12Stevens County, WAWA49,66812.1%−21%

13Adams County, WAWA21,48812.3%+1%

14Asotin County, WAWA22,54512.4%−31%

15Franklin County, WAWA102,61213.4%−1%

16Mason County, WAWA71,16513.6%−13%

17Yakima County, WAWA259,18513.7%−11%

18Garfield County, WAWA2,41613.7%−19%

19Douglas County, WAWA46,47313.8%−14%

20Columbia County, WAWA4,14115.1%−14%

21Lincoln County, WAWA11,98216.0%−15%

22Clallam County, WAWA78,20216.1%−22%

23Skagit County, WAWA132,97516.3%−22%

24Chelan County, WAWA81,94116.7%−24%

25Clark County, WAWA532,11916.8%−24%

26Pierce County, WAWA946,28817.5%−15%

27Walla Walla County, WAWA62,36118.8%−20%

28Snohomish County, WAWA870,65619.3%−21%

29Kitsap County, WAWA283,37419.8%−22%

30Island County, WAWA85,65720.0%−26%

31Spokane County, WAWA558,34420.6%−18%

32Jefferson County, WAWA33,97021.8%−23%

33Whatcom County, WAWA236,39222.0%−19%

34Kittitas County, WAWA48,80322.2%−15%

35Benton County, WAWA221,72223.3%−11%

36Thurston County, WAWA304,26124.7%−17%

37King County, WAWA2,344,93932.8%−18%

38San Juan County, WAWA18,57733.5%−17%

39Whitman County, WAWA48,51242.6%−3%

SHOWING 1–39 OF 39

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UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES