Ranking of Washington Counties By Net Domestic Migration in 2021

Updated on June 21, 2025.

Based on the US Census Vintage data estimates, in 2021, the Net Domestic Migration for Washington was -15.69K. Among all Washington counties, Clark County had the highest net domestic migration (5.73K), followed by Spokane County (3.56K), and Benton County (2.29K).

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 Net Domestic Migration in 2021
Clark
Spokane
Benton
Lewis
Clallam
Thurston
Mason
Grays Harbor
Stevens
Skagit
Ranking of Washington Counties By Net Domestic Migration in 2021
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Rank County Net Dom. Migration
1 Clark County 5731
2 Spokane County 3558
3 Benton County 2285
4 Lewis County 2237
5 Clallam County 1672
6 Thurston County 1467
7 Mason County 1363
8 Grays Harbor County 1349
9 Stevens County 1163
10 Skagit County 1007
11 Snohomish County 962
12 San Juan County 886
13 Cowlitz County 817
14 Jefferson County 813
15 Pacific County 713
16 Island County 679
17 Okanogan County 622
18 Douglas County 619
19 Pend Oreille County 508
20 Chelan County 495
21 Klickitat County 405
22 Lincoln County 403
23 Grant County 336
24 Kitsap County 301
25 Asotin County 218
26 Skamania County 183
27 Wahkiakum County 177
28 Ferry County 129
29 Columbia County 100
30 Garfield County 65
31 Franklin County -202
32 Adams County -226
33 Walla Walla County -419
34 Pierce County -842
35 Whatcom County -990
36 Kittitas County -1096
37 Yakima County -1481
38 Whitman County -4343
39 King County -37352