Ranking of Washington Counties By Population in 2019

Updated on January 28, 2024.

Based on the US Census Vintage data estimates, in 2019, the Population for Washington was 7.61M. Among all Washington counties, King County had the highest population (2.25M), followed by Pierce County (905.72K), and Snohomish County (822.41K).

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 2019
King
Pierce
Snohomish
Spokane
Clark
Thurston
Kitsap
Yakima
Whatcom
Benton
Ranking of Washington Counties By Population in 2019
Items per page:
0 of 0
Rank County Population
1 King County 2249653
2 Pierce County 905719
3 Snohomish County 822413
4 Spokane County 522231
5 Clark County 489271
6 Thurston County 289661
7 Kitsap County 272299
8 Yakima County 251552
9 Whatcom County 228675
10 Benton County 204173
11 Skagit County 129181
12 Cowlitz County 110389
13 Grant County 97959
14 Franklin County 95446
15 Island County 85344
16 Lewis County 80599
17 Clallam County 77457
18 Chelan County 77053
19 Grays Harbor County 75047
20 Mason County 66939
21 Walla Walla County 61062
22 Whitman County 50136
23 Kittitas County 47856
24 Stevens County 45815
25 Douglas County 43251
26 Okanogan County 42403
27 Jefferson County 32347
28 Asotin County 22687
29 Pacific County 22517
30 Klickitat County 22433
31 Adams County 19959
32 San Juan County 17352
33 Pend Oreille County 13726
34 Skamania County 12096
35 Lincoln County 10938
36 Ferry County 7676
37 Wahkiakum County 4420
38 Columbia County 4023
39 Garfield County 2266