RANKING · 1990 CENSUS · 39 SHOWN OF 39

Highest median household income, Washington counties · 1990

Washington counties ranked by median household income from the 2023 American Community Survey 5-year estimates. 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

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPMEDIAN HOUSEHOLD INCOMEVS 2000

01Snohomish County, WAWA870,656$36,847−31%

02King County, WAWA2,344,939$36,179−32%

03Benton County, WAWA221,722$32,593−31%

04Kitsap County, WAWA283,374$32,043−32%

05Clark County, WAWA532,119$31,800−34%

06San Juan County, WAWA18,577$31,278−28%

07Thurston County, WAWA304,261$30,976−34%

08Pierce County, WAWA946,288$30,412−33%

09Island County, WAWA85,657$29,161−36%

10Skamania County, WAWA12,669$28,778−27%

11Skagit County, WAWA132,975$28,389−33%

12Whatcom County, WAWA236,392$28,367−29%

13Cowlitz County, WAWA114,885$27,866−30%

14Douglas County, WAWA46,473$27,054−30%

15Wahkiakum County, WAWA4,873$26,969−32%

16Mason County, WAWA71,165$26,304−34%

17Spokane County, WAWA558,344$25,769−31%

18Clallam County, WAWA78,202$25,434−30%

19Jefferson County, WAWA33,970$25,197−33%

20Ferry County, WAWA7,517$25,170−17%

21Garfield County, WAWA2,416$25,156−25%

22Lincoln County, WAWA11,982$24,617−30%

23Franklin County, WAWA102,612$24,604−37%

24Adams County, WAWA21,488$24,604−27%

25Stevens County, WAWA49,668$24,440−30%

26Walla Walla County, WAWA62,361$24,414−32%

27Lewis County, WAWA88,062$24,410−31%

28Chelan County, WAWA81,941$24,312−35%

29Yakima County, WAWA259,185$23,612−32%

30Grays Harbor County, WAWA78,144$23,042−33%

31Klickitat County, WAWA24,331$23,012−33%

32Asotin County, WAWA22,545$22,897−32%

33Columbia County, WAWA4,141$22,418−33%

34Grant County, WAWA105,727$22,372−37%

35Whitman County, WAWA48,512$21,674−24%

36Pend Oreille County, WAWA14,457$20,808−34%

37Kittitas County, WAWA48,803$20,489−37%

38Okanogan County, WAWA45,230$20,303−32%

39Pacific County, WAWA24,357$20,029−36%

SHOWING 1–39 OF 39

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UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES