RANKING · 2024 ACS · 36 SHOWN OF 36

Most segregated, Washington counties

Washington counties ranked by the CensusEasy Segregation Score, the White vs non-White index of dissimilarity across census tracts (2024 ACS). Higher means residents are more sorted into separate neighborhoods. This list covers the 36 counties in Washington that qualify, ranked against each other statewide.

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

RANKPLACESTATEPOPSEGREGATION SCOREVS 2020

01Ferry County, WAWA7,51752+7%

02Adams County, WAWA21,48845+5%

03Yakima County, WAWA259,18544−8%

04Okanogan County, WAWA45,23038−2%

05Franklin County, WAWA102,61235−7%

06Island County, WAWA85,65734−9%

07Grant County, WAWA105,72732−21%

08Skagit County, WAWA132,97530−5%

09King County, WAWA2,344,93929−5%

10Pierce County, WAWA946,28829−9%

11Chelan County, WAWA81,94127−16%

12Clallam County, WAWA78,20227−16%

13Snohomish County, WAWA870,65625−9%

14Benton County, WAWA221,72224−13%

15Grays Harbor County, WAWA78,14424−8%

16Stevens County, WAWA49,66823−39%

17Clark County, WAWA532,11922−16%

18Mason County, WAWA71,16521−15%

19Kitsap County, WAWA283,37420−15%

20Spokane County, WAWA558,34420−21%

21Cowlitz County, WAWA114,88520−13%

22Pacific County, WAWA24,35718−10%

23Thurston County, WAWA304,26118−16%

24Walla Walla County, WAWA62,36118−31%

25Asotin County, WAWA22,54517−38%

26San Juan County, WAWA18,57716+27%

27Whatcom County, WAWA236,39216−31%

28Lewis County, WAWA88,06215+1%

29Whitman County, WAWA48,51215−41%

30Jefferson County, WAWA33,97015−19%

31Kittitas County, WAWA48,80314−16%

32Klickitat County, WAWA24,33113−55%

33Douglas County, WAWA46,47312−49%

34Pend Oreille County, WAWA14,45712−30%

35Skamania County, WAWA12,6699−31%

36Lincoln County, WAWA11,9829−51%

SHOWING 1–36 OF 36

Download CSV (full list, 36 rows)How this score is calculated

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