CensusEasy
RANKING · 1990 CENSUS · 39 SHOWN OF 39

Least racially diverse, Washington counties · 1990

Washington counties with the lowest CensusEasy Diversity Score, where most residents share the same race or ethnicity (2023 ACS). This list covers the 39 counties in Washington that qualify, ranked against each other statewide.

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SAME RANKING BYCitiesStatesMetrosZIP codes
RELATEDOldest by median ageYoungest by median ageMost foreign-born residentsHighest uninsured rateMost womenMost men
YEAR19902000201020202024
Least racially diverse by state
All USAlaskaAlabamaArkansasArizonaCaliforniaColoradoFloridaGeorgiaIowaIdahoIllinoisIndianaKansasKentuckyLouisianaMassachusettsMarylandMaineMichiganMinnesotaMissouriMississippiMontanaNorth CarolinaNorth DakotaNebraskaNew HampshireNew JerseyNew MexicoNevadaNew YorkOhioOklahomaOregonPennsylvaniaSouth CarolinaSouth DakotaTennesseeTexasUtahVirginiaVermontWashingtonWisconsinWest VirginiaWyoming
RANKPLACESTATEPOPDIVERSITY SCOREVS 2000
01Garfield County, WAWA2,4162−67%
02Lincoln County, WAWA11,9828+28%
03San Juan County, WAWA18,5778−10%
04Pend Oreille County, WAWA14,4579+20%
05Asotin County, WAWA22,5459+35%
06Lewis County, WAWA88,06212−24%
07Jefferson County, WAWA33,97014+46%
08Skamania County, WAWA12,66914+14%
09Cowlitz County, WAWA114,88516+2%
10Spokane County, WAWA558,34416+4%
11Kittitas County, WAWA48,80317−12%
12Wahkiakum County, WAWA4,87317+105%
13Clark County, WAWA532,11918−23%
14Grays Harbor County, WAWA78,14419+15%
15Snohomish County, WAWA870,65620−31%
16Clallam County, WAWA78,20220+46%
17Mason County, WAWA71,16521+18%
18Stevens County, WAWA49,66821+200%
19Whatcom County, WAWA236,39221−2%
20Pacific County, WAWA24,35721+19%
21Whitman County, WAWA48,51222−8%
22Thurston County, WAWA304,26124−12%
23Island County, WAWA85,65726+4%
24Skagit County, WAWA132,97526−13%
25Kitsap County, WAWA283,37429+5%
26Klickitat County, WAWA24,33129+39%
27Columbia County, WAWA4,14131+86%
28Chelan County, WAWA81,94133−20%
29Benton County, WAWA221,72234−3%
30Douglas County, WAWA46,47336−13%
31King County, WAWA2,344,93938−20%
32Pierce County, WAWA946,28839−4%
33Walla Walla County, WAWA62,36140+2%
34Ferry County, WAWA7,51742+313%
35Okanogan County, WAWA45,23049+35%
36Grant County, WAWA105,72753−6%
37Yakima County, WAWA259,18571+15%
38Franklin County, WAWA102,61276+13%
39Adams County, WAWA21,48878+24%
SHOWING 1–39 OF 39
Download CSV (full list, 39 rows)How this score is calculated

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