CensusEasy
RANKING · 2010 CENSUS · 39 SHOWN OF 39

Least racially diverse, Washington counties · 2010

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
RANKPLACESTATEPOPDIVERSITY SCOREVS 2000
01Wahkiakum County, WAWA4,87313+61%
02Lincoln County, WAWA11,98216+165%
03Asotin County, WAWA22,54518+169%
04San Juan County, WAWA18,57721+138%
05Pend Oreille County, WAWA14,45723+213%
06Garfield County, WAWA2,41624+268%
07Jefferson County, WAWA33,97025+168%
08Skamania County, WAWA12,66925+104%
09Stevens County, WAWA49,66826+279%
10Columbia County, WAWA4,14128+68%
11Spokane County, WAWA558,34430+93%
12Kittitas County, WAWA48,80331+65%
13Lewis County, WAWA88,06231+100%
14Cowlitz County, WAWA114,88532+104%
15Clallam County, WAWA78,20233+140%
16Pacific County, WAWA24,35734+90%
17Klickitat County, WAWA24,33136+70%
18Mason County, WAWA71,16537+109%
19Island County, WAWA85,65738+52%
20Whitman County, WAWA48,51238+60%
21Whatcom County, WAWA236,39239+83%
22Clark County, WAWA532,11940+72%
23Grays Harbor County, WAWA78,14440+151%
24Kitsap County, WAWA283,37444+61%
25Thurston County, WAWA304,26145+65%
26Skagit County, WAWA132,97547+57%
27Ferry County, WAWA7,51748+375%
28Benton County, WAWA221,72251+46%
29Walla Walla County, WAWA62,36151+29%
30Snohomish County, WAWA870,65653+84%
31Chelan County, WAWA81,94154+31%
32Douglas County, WAWA46,47357+37%
33Pierce County, WAWA946,28860+48%
34Okanogan County, WAWA45,23060+68%
35Adams County, WAWA21,48863−0%
36Grant County, WAWA105,72765+16%
37King County, WAWA2,344,93968+42%
38Franklin County, WAWA102,61269+2%
39Yakima County, WAWA259,18571+15%
SHOWING 1–39 OF 39
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UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES