Washington / Counties by Population

Washington Counties by Population

Below are the 39 Washington counties sorted by population from largest to smallest. The population data are from the 2021 American Community Survey. You can copy and paste this list directly into your favorite spreadsheet program. Don't you just adore lovely numbers listed nicely in columns & rows? We do!

Rank County Population
1 King County 2,240,876
2 Pierce County 910,225
3 Snohomish County 820,024
4 Spokane County 531,477
5 Clark County 496,494
6 Thurston County 290,642
7 Kitsap County 273,072
8 Yakima County 255,151
9 Whatcom County 224,533
10 Benton County 204,551
11 Skagit County 128,228
12 Cowlitz County 109,457
13 Grant County 97,874
14 Franklin County 95,313
15 Island County 85,938
16 Lewis County 81,214
17 Chelan County 78,508
18 Clallam County 76,727
19 Grays Harbor County 74,737
20 Mason County 64,964
21 Walla Walla County 62,168
22 Whitman County 48,197
23 Stevens County 46,057
24 Kittitas County 44,147
25 Douglas County 42,622
26 Okanogan County 41,966
27 Jefferson County 32,590
28 Pacific County 22,974
29 Klickitat County 22,478
30 Asotin County 22,285
31 Adams County 20,353
32 San Juan County 17,631
33 Pend Oreille County 13,302
34 Skamania County 11,973
35 Lincoln County 10,798
36 Ferry County 7,198
37 Wahkiakum County 4,373
38 Columbia County 3,969
39 Garfield County 2,278

United States Census Bureau. B01001 SEX BY AGE, 2021 American Community Survey 5-Year Estimates. U.S. Census Bureau, American Community Survey Office. Web. 8 December 2022. http://www.census.gov/.

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