RANKING · 2024 ACS · 39 SHOWN OF 39

Least racially diverse, Washington counties

Washington counties with the lowest CensusEasy Diversity Score, where most residents share the same 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

RANKPLACESTATEPOPDIVERSITY SCOREVS –

01Lincoln County, WAWA11,98226–

02Asotin County, WAWA22,54529–

03Garfield County, WAWA2,41631–

04San Juan County, WAWA18,57733–

05Pend Oreille County, WAWA14,45734–

06Wahkiakum County, WAWA4,87334–

07Jefferson County, WAWA33,97034–

08Stevens County, WAWA49,66836–

09Skamania County, WAWA12,66938–

10Columbia County, WAWA4,14141–

11Spokane County, WAWA558,34442–

12Clallam County, WAWA78,20243–

13Lewis County, WAWA88,06243–

14Cowlitz County, WAWA114,88544–

15Pacific County, WAWA24,35744–

16Kittitas County, WAWA48,80344–

17Klickitat County, WAWA24,33145–

18Grays Harbor County, WAWA78,14450–

19Whatcom County, WAWA236,39251–

20Mason County, WAWA71,16551–

21Island County, WAWA85,65752–

22Ferry County, WAWA7,51754–

23Whitman County, WAWA48,51255–

24Kitsap County, WAWA283,37456–

25Clark County, WAWA532,11956–

26Skagit County, WAWA132,97557–

27Walla Walla County, WAWA62,36160–

28Adams County, WAWA21,48861–

29Thurston County, WAWA304,26161–

30Chelan County, WAWA81,94161–

31Benton County, WAWA221,72264–

32Douglas County, WAWA46,47367–

33Okanogan County, WAWA45,23068–

34Franklin County, WAWA102,61269–

35Grant County, WAWA105,72770–

36Yakima County, WAWA259,18571–

37Snohomish County, WAWA870,65672–

38Pierce County, WAWA946,28873–

39King County, WAWA2,344,93982–

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