RANKING · 2024 ACS · 39 SHOWN OF 39

Most racially diverse, Washington counties

Washington counties ranked by the CensusEasy Diversity Score (0 to 100), the chance two random residents are of a different race or ethnicity (2024 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

RELATEDLargest foreign-born population Most residents with a disability Largest veteran population Most uninsured people Largest senior population Most unmarried people

RANKPLACESTATEPOPDIVERSITY SCOREVS –

01King County, WAWA2,344,93982–

02Pierce County, WAWA946,28873–

03Snohomish County, WAWA870,65672–

04Yakima County, WAWA259,18571–

05Grant County, WAWA105,72770–

06Franklin County, WAWA102,61269–

07Okanogan County, WAWA45,23068–

08Douglas County, WAWA46,47367–

09Benton County, WAWA221,72264–

10Chelan County, WAWA81,94161–

11Thurston County, WAWA304,26161–

12Adams County, WAWA21,48861–

13Walla Walla County, WAWA62,36160–

14Skagit County, WAWA132,97557–

15Clark County, WAWA532,11956–

16Kitsap County, WAWA283,37456–

17Whitman County, WAWA48,51255–

18Ferry County, WAWA7,51754–

19Island County, WAWA85,65752–

20Mason County, WAWA71,16551–

21Whatcom County, WAWA236,39251–

22Grays Harbor County, WAWA78,14450–

23Klickitat County, WAWA24,33145–

24Kittitas County, WAWA48,80344–

25Pacific County, WAWA24,35744–

26Cowlitz County, WAWA114,88544–

27Lewis County, WAWA88,06243–

28Clallam County, WAWA78,20243–

29Spokane County, WAWA558,34442–

30Columbia County, WAWA4,14141–

31Skamania County, WAWA12,66938–

32Stevens County, WAWA49,66836–

33Jefferson County, WAWA33,97034–

34Wahkiakum County, WAWA4,87334–

35Pend Oreille County, WAWA14,45734–

36San Juan County, WAWA18,57733–

37Garfield County, WAWA2,41631–

38Asotin County, WAWA22,54529–

39Lincoln County, WAWA11,98226–

SHOWING 1–39 OF 39

Download CSV (full list, 39 rows)How this score is calculated

UPDATED 2026-07-15 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES