CensusEasy
RANKING · 2020 CENSUS · 39 SHOWN OF 39

Least racially diverse, Washington counties · 2020

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.

Flip the list · Most racially diverse, US counties
WashingtonAll statesAll rankings
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
01Lincoln County, WAWA11,98221+257%
02Wahkiakum County, WAWA4,87323+180%
03Asotin County, WAWA22,54524+264%
04Garfield County, WAWA2,41625+295%
05Pend Oreille County, WAWA14,45728+287%
06San Juan County, WAWA18,57728+218%
07Skamania County, WAWA12,66929+140%
08Jefferson County, WAWA33,97030+218%
09Columbia County, WAWA4,14130+78%
10Stevens County, WAWA49,66831+344%
11Spokane County, WAWA558,34439+152%
12Clallam County, WAWA78,20239+184%
13Lewis County, WAWA88,06239+152%
14Klickitat County, WAWA24,33140+90%
15Cowlitz County, WAWA114,88541+162%
16Pacific County, WAWA24,35742+133%
17Kittitas County, WAWA48,80343+127%
18Grays Harbor County, WAWA78,14446+186%
19Island County, WAWA85,65747+87%
20Mason County, WAWA71,16548+174%
21Whatcom County, WAWA236,39249+132%
22Ferry County, WAWA7,51751+405%
23Whitman County, WAWA48,51252+115%
24Clark County, WAWA532,11953+128%
25Skagit County, WAWA132,97554+79%
26Kitsap County, WAWA283,37454+94%
27Thurston County, WAWA304,26157+109%
28Walla Walla County, WAWA62,36157+45%
29Chelan County, WAWA81,94159+42%
30Adams County, WAWA21,48859−6%
31Benton County, WAWA221,72261+75%
32Douglas County, WAWA46,47364+54%
33Okanogan County, WAWA45,23065+81%
34Snohomish County, WAWA870,65667+134%
35Grant County, WAWA105,72768+21%
36Franklin County, WAWA102,61269+2%
37Pierce County, WAWA946,28870+74%
38Yakima County, WAWA259,18571+15%
39King County, WAWA2,344,93979+66%
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