RANKING · 1990 CENSUS · 39 SHOWN OF 39

Most graduate degrees, Washington counties · 1990

Washington counties ranked by the share of adults 25+ holding a graduate or professional degree (1990 ACS). This list covers the 39 counties in Washington that qualify, ranked against each other statewide. The median across all 39 is 4.2%.

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SAME RANKING BYCities States Metros ZIP codes

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPGRADUATE DEGREEVS –

01Whitman County, WAWA48,51220.4%–

02San Juan County, WAWA18,57711.3%–

03King County, WAWA2,344,93910.0%–

04Thurston County, WAWA304,2618.6%–

05Benton County, WAWA221,7227.8%–

06Kittitas County, WAWA48,8037.1%–

07Whatcom County, WAWA236,3926.8%–

08Spokane County, WAWA558,3446.6%–

09Jefferson County, WAWA33,9706.2%–

10Walla Walla County, WAWA62,3616.1%–

11Kitsap County, WAWA283,3746.0%–

12Island County, WAWA85,6575.6%–

13Pierce County, WAWA946,2885.5%–

14Clallam County, WAWA78,2025.4%–

15Clark County, WAWA532,1195.3%–

16Snohomish County, WAWA870,6565.1%–

17Chelan County, WAWA81,9414.8%–

18Skagit County, WAWA132,9754.8%–

19Columbia County, WAWA4,1414.3%–

20Ferry County, WAWA7,5174.2%–

21Skamania County, WAWA12,6694.2%–

22Yakima County, WAWA259,1854.2%–

23Asotin County, WAWA22,5454.1%–

24Pend Oreille County, WAWA14,4573.9%–

25Wahkiakum County, WAWA4,8733.7%–

26Mason County, WAWA71,1653.7%–

27Stevens County, WAWA49,6683.7%–

28Lincoln County, WAWA11,9823.6%–

29Douglas County, WAWA46,4733.6%–

30Okanogan County, WAWA45,2303.5%–

31Lewis County, WAWA88,0623.5%–

32Franklin County, WAWA102,6123.4%–

33Cowlitz County, WAWA114,8853.4%–

34Adams County, WAWA21,4883.3%–

35Grays Harbor County, WAWA78,1443.2%–

36Grant County, WAWA105,7273.2%–

37Garfield County, WAWA2,4163.2%–

38Pacific County, WAWA24,3572.8%–

39Klickitat County, WAWA24,3312.4%–

SHOWING 1–39 OF 39

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