Washington / Counties by Population

Washington Counties by Population

Below are the 39 Washington counties sorted by population from 1 to 39 . The population data are from the 2020 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!

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Rank County Population
1 King County 2,225,064
2 Pierce County 891,862
3 Snohomish County 811,572
4 Spokane County 513,402
5 Clark County 481,950
6 Thurston County 284,698
7 Kitsap County 268,945
8 Yakima County 250,649
9 Whatcom County 224,538
10 Benton County 200,715
11 Skagit County 127,442
12 Cowlitz County 108,399
13 Grant County 96,648
14 Franklin County 93,681
15 Island County 84,187
16 Lewis County 79,430
17 Chelan County 76,653
18 Clallam County 76,482
19 Grays Harbor County 73,769
20 Mason County 65,326
21 Walla Walla County 60,785
22 Whitman County 49,577
23 Kittitas County 47,097
24 Stevens County 45,233
25 Douglas County 42,520
26 Okanogan County 42,080
27 Jefferson County 31,825
28 Asotin County 22,636
29 Pacific County 22,121
30 Klickitat County 22,055
31 Adams County 19,702
32 San Juan County 16,953
33 Pend Oreille County 13,588
34 Skamania County 11,906
35 Lincoln County 10,732
36 Ferry County 7,643
37 Wahkiakum County 4,318
38 Columbia County 4,024
39 Garfield County 2,258

United States Census Bureau. B01001 SEX BY AGE, 2020 American Community Survey 5-Year Estimates. U.S. Census Bureau, American Community Survey Office. Web. 17 March 2022. http://www.census.gov/.

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