CensusEasy
RANKING · 2024 ACS · 39 SHOWN OF 39

Most racially diverse, Washington counties

Washington counties ranked by the CensusEasy Diversity Score (0 to 100), the chance two random residents are of a different race or ethnicity (2024 ACS). This list covers the 39 counties in Washington that qualify, ranked against each other statewide. The median across all 39 is 51.

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Most racially diverse by state
RANKPLACESTATEPOPDIVERSITY SCOREVS 1990
01King County, WAWA2,344,93982+122%
02Pierce County, WAWA946,28873+98%
03Snohomish County, WAWA870,65672+287%
04Yakima County, WAWA259,18571+26%
05Grant County, WAWA105,72770+68%
06Franklin County, WAWA102,61269+11%
07Okanogan County, WAWA45,23068+64%
08Douglas County, WAWA46,47367+139%
09Benton County, WAWA221,72264+150%
10Chelan County, WAWA81,94161+153%
11Thurston County, WAWA304,26161+176%
12Adams County, WAWA21,48861+7%
13Walla Walla County, WAWA62,36160+105%
14Skagit County, WAWA132,97557+181%
15Clark County, WAWA532,11956+246%
16Kitsap County, WAWA283,37456+110%
17Whitman County, WAWA48,51255+161%
18Ferry County, WAWA7,51754+34%
19Island County, WAWA85,65752+115%
20Mason County, WAWA71,16551+166%
21Whatcom County, WAWA236,39251+169%
22Grays Harbor County, WAWA78,14450+190%
23Klickitat County, WAWA24,33145+89%
24Kittitas County, WAWA48,80344+231%
25Pacific County, WAWA24,35744+130%
26Cowlitz County, WAWA114,88544+218%
27Lewis County, WAWA88,06243+300%
28Clallam County, WAWA78,20243+121%
29Spokane County, WAWA558,34442+180%
30Columbia County, WAWA4,14141+46%
31Skamania County, WAWA12,66938+179%
32Stevens County, WAWA49,66836+81%
33Jefferson County, WAWA33,97034+151%
34Wahkiakum County, WAWA4,87334+147%
35Pend Oreille County, WAWA14,45734+316%
36San Juan County, WAWA18,57733+331%
37Garfield County, WAWA2,41631+1372%
38Asotin County, WAWA22,54529+287%
39Lincoln County, WAWA11,98226+283%
SHOWING 1–39 OF 39

UPDATED 2026-09-11 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES