Ranking of Washington Counties By Population in 2016

Updated on January 28, 2024.

Based on the US Census Vintage data estimates, in 2016, the Population for Washington was 7.30M. Among all Washington counties, King County had the highest population (2.17M), followed by Pierce County (864.00K), and Snohomish County (787.89K).

The chart below shows the top 10 counties, and the table below shows the ranking of all Washington counties.

You can see similar ranking information for related topics, and for other states. You can also see the ranking of all counties in the United States.

See this for other years:
Ranking of Washington Counties By Population in 2016
King
Pierce
Snohomish
Spokane
Clark
Thurston
Kitsap
Yakima
Whatcom
Benton
Ranking of Washington Counties By Population in 2016
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Rank County Population
1 King County 2167863
2 Pierce County 864004
3 Snohomish County 787886
4 Spokane County 497163
5 Clark County 465911
6 Thurston County 273827
7 Kitsap County 263419
8 Yakima County 249332
9 Whatcom County 216486
10 Benton County 193573
11 Skagit County 123661
12 Cowlitz County 104760
13 Grant County 94144
14 Franklin County 90132
15 Island County 81826
16 Lewis County 76709
17 Chelan County 75809
18 Clallam County 74351
19 Grays Harbor County 71555
20 Mason County 62166
21 Walla Walla County 60112
22 Whitman County 48912
23 Kittitas County 44922
24 Stevens County 44187
25 Okanogan County 41516
26 Douglas County 41312
27 Jefferson County 30949
28 Asotin County 22362
29 Pacific County 21298
30 Klickitat County 21295
31 Adams County 19311
32 San Juan County 16256
33 Pend Oreille County 13128
34 Skamania County 11590
35 Lincoln County 10339
36 Ferry County 7534
37 Wahkiakum County 4123
38 Columbia County 3983
39 Garfield County 2255