RANKING · 2010 CENSUS · 39 SHOWN OF 39

Most income inequality (Gini), Washington counties · 2010

Washington counties ranked by Gini index of household income inequality, where 0 = perfect equality and 1 = maximum inequality (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

RELATEDHighest median household income Lowest median household income Highest per-capita income Lowest poverty rate Highest poverty rate Most residents in poverty

RANKPLACESTATEPOPINCOME INEQUALITY (GINI)VS –

01Whitman County, WAWA48,5120.498–

02Kittitas County, WAWA48,8030.477–

03San Juan County, WAWA18,5770.476–

04Pend Oreille County, WAWA14,4570.474–

05King County, WAWA2,344,9390.456–

06Columbia County, WAWA4,1410.453–

07Okanogan County, WAWA45,2300.452–

08Ferry County, WAWA7,5170.450–

09Jefferson County, WAWA33,9700.446–

10Spokane County, WAWA558,3440.443–

11Walla Walla County, WAWA62,3610.442–

12Pacific County, WAWA24,3570.440–

13Klickitat County, WAWA24,3310.439–

14Whatcom County, WAWA236,3920.438–

15Yakima County, WAWA259,1850.437–

16Asotin County, WAWA22,5450.436–

17Chelan County, WAWA81,9410.432–

18Franklin County, WAWA102,6120.429–

19Grays Harbor County, WAWA78,1440.429–

20Grant County, WAWA105,7270.427–

21Stevens County, WAWA49,6680.422–

22Cowlitz County, WAWA114,8850.420–

23Skagit County, WAWA132,9750.420–

24Clallam County, WAWA78,2020.416–

25Clark County, WAWA532,1190.416–

26Kitsap County, WAWA283,3740.416–

27Benton County, WAWA221,7220.415–

28Mason County, WAWA71,1650.414–

29Pierce County, WAWA946,2880.413–

30Skamania County, WAWA12,6690.413–

31Adams County, WAWA21,4880.411–

32Lincoln County, WAWA11,9820.410–

33Garfield County, WAWA2,4160.407–

34Thurston County, WAWA304,2610.407–

35Lewis County, WAWA88,0620.405–

36Douglas County, WAWA46,4730.399–

37Snohomish County, WAWA870,6560.395–

38Island County, WAWA85,6570.390–

39Wahkiakum County, WAWA4,8730.386–

SHOWING 1–39 OF 39

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