Below are the 39 Washington counties sorted by population from largest to smallest. The population data are from the 2022 Population Estimates Program and 2021 American Community Survey.
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Rank | County | Population |
---|---|---|
1 | King County | 2,266,789 |
2 | Pierce County | 927,380 |
3 | Snohomish County | 840,079 |
4 | Spokane County | 549,690 |
5 | Clark County | 516,779 |
6 | Thurston County | 298,758 |
7 | Kitsap County | 277,673 |
8 | Yakima County | 257,001 |
9 | Whatcom County | 230,677 |
10 | Benton County | 212,791 |
11 | Skagit County | 131,179 |
12 | Cowlitz County | 111,956 |
13 | Grant County | 101,311 |
14 | Franklin County | 98,678 |
15 | Island County | 86,625 |
16 | Lewis County | 85,370 |
17 | Chelan County | 79,926 |
18 | Clallam County | 77,805 |
19 | Grays Harbor County | 77,038 |
20 | Mason County | 68,166 |
21 | Walla Walla County | 61,890 |
22 | Stevens County | 48,229 |
23 | Whitman County | 47,619 |
24 | Kittitas County | 45,189 |
25 | Douglas County | 44,192 |
26 | Okanogan County | 43,127 |
27 | Jefferson County | 33,589 |
28 | Pacific County | 24,113 |
29 | Klickitat County | 23,271 |
30 | Asotin County | 22,508 |
31 | Adams County | 20,961 |
32 | San Juan County | 18,662 |
33 | Pend Oreille County | 14,179 |
34 | Skamania County | 12,460 |
35 | Lincoln County | 11,601 |
36 | Ferry County | 7,448 |
37 | Wahkiakum County | 4,688 |
38 | Columbia County | 4,026 |
39 | Garfield County | 2,363 |
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/. United States Census Bureau. Annual Estimates of the Resident Population: April 1, 2020 to July 1, 2022. U.S. Census Bureau, Population Division. Web. May 2023. http://www.census.gov/. |
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