Ranking of Washington Counties By Population in 2012

Updated on January 28, 2024.

Based on the US Census Vintage data estimates, in 2012, the Population for Washington was 6.90M. Among all Washington counties, King County had the highest population (2.01M), followed by Pierce County (815.77K), and Snohomish County (732.24K).

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 2012
King
Pierce
Snohomish
Spokane
Clark
Thurston
Kitsap
Yakima
Whatcom
Benton
Ranking of Washington Counties By Population in 2012
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Rank County Population
1 King County 2011708
2 Pierce County 815772
3 Snohomish County 732239
4 Spokane County 475605
5 Clark County 436532
6 Thurston County 258613
7 Kitsap County 254414
8 Yakima County 246064
9 Whatcom County 204902
10 Benton County 182400
11 Skagit County 117716
12 Cowlitz County 101669
13 Grant County 91292
14 Franklin County 85691
15 Island County 79086
16 Lewis County 75452
17 Chelan County 73471
18 Clallam County 71791
19 Grays Harbor County 71785
20 Mason County 60689
21 Walla Walla County 59342
22 Whitman County 46660
23 Stevens County 43494
24 Kittitas County 41636
25 Okanogan County 41176
26 Douglas County 39192
27 Jefferson County 29808
28 Asotin County 21935
29 Klickitat County 20640
30 Pacific County 20591
31 Adams County 18936
32 San Juan County 15806
33 Pend Oreille County 13007
34 Skamania County 11205
35 Lincoln County 10430
36 Ferry County 7668
37 Wahkiakum County 3996
38 Columbia County 3977
39 Garfield County 2209