RANKING · 2010 CENSUS · 39 SHOWN OF 39

Most equal income distribution, Washington counties · 2010

Washington counties with the lowest income inequality, measured by the Gini index (2010 ACS). This list covers the 39 counties in Washington that qualify, ranked against each other statewide. The median across all 39 is 0.427.

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SAME RANKING BYCities States Metros ZIP codes

YEAR2010 2024

RANKPLACESTATEPOPINCOME INEQUALITY (GINI)VS –

01Wahkiakum County, WAWA4,8730.386–

02Island County, WAWA85,6570.390–

03Snohomish County, WAWA870,6560.395–

04Douglas County, WAWA46,4730.399–

05Lewis County, WAWA88,0620.405–

06Garfield County, WAWA2,4160.407–

07Thurston County, WAWA304,2610.407–

08Lincoln County, WAWA11,9820.410–

09Adams County, WAWA21,4880.411–

10Pierce County, WAWA946,2880.413–

11Skamania County, WAWA12,6690.413–

12Mason County, WAWA71,1650.414–

13Benton County, WAWA221,7220.415–

14Clallam County, WAWA78,2020.416–

15Clark County, WAWA532,1190.416–

16Kitsap County, WAWA283,3740.416–

17Cowlitz County, WAWA114,8850.420–

18Skagit County, WAWA132,9750.420–

19Stevens County, WAWA49,6680.422–

20Grant County, WAWA105,7270.427–

21Franklin County, WAWA102,6120.429–

22Grays Harbor County, WAWA78,1440.429–

23Chelan County, WAWA81,9410.432–

24Asotin County, WAWA22,5450.436–

25Yakima County, WAWA259,1850.437–

26Whatcom County, WAWA236,3920.438–

27Klickitat County, WAWA24,3310.439–

28Pacific County, WAWA24,3570.440–

29Walla Walla County, WAWA62,3610.442–

30Spokane County, WAWA558,3440.443–

31Jefferson County, WAWA33,9700.446–

32Ferry County, WAWA7,5170.450–

33Okanogan County, WAWA45,2300.452–

34Columbia County, WAWA4,1410.453–

35King County, WAWA2,344,9390.456–

36Pend Oreille County, WAWA14,4570.474–

37San Juan County, WAWA18,5770.476–

38Kittitas County, WAWA48,8030.477–

39Whitman County, WAWA48,5120.498–

SHOWING 1–39 OF 39

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