Ranking of Washington Counties By Net Domestic Migration in 2020

Updated on June 21, 2025.

Based on the US Census Vintage data estimates, in 2020, the Net Domestic Migration for Washington was 38.47K. Among all Washington counties, Clark County had the highest net domestic migration (5.91K), followed by Spokane County (5.08K), and Thurston County (3.74K).

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 2020
Clark
Spokane
Thurston
Pierce
King
Snohomish
Whatcom
Lewis
Skagit
Mason
Ranking of Washington Counties By Net Domestic Migration in 2020
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Rank County Net Dom. Migration
1 Clark County 5913
2 Spokane County 5084
3 Thurston County 3739
4 Pierce County 3709
5 King County 3111
6 Snohomish County 2627
7 Whatcom County 1859
8 Lewis County 1512
9 Skagit County 1289
10 Mason County 1282
11 Kittitas County 1275
12 Grays Harbor County 1136
13 Clallam County 1121
14 Benton County 1062
15 Cowlitz County 994
16 Stevens County 651
17 Pacific County 604
18 Jefferson County 596
19 Island County 550
20 Pend Oreille County 469
21 Chelan County 396
22 Grant County 373
23 Franklin County 372
24 Klickitat County 273
25 Asotin County 199
26 Lincoln County 175
27 San Juan County 173
28 Okanogan County 168
29 Walla Walla County 155
30 Wahkiakum County 108
31 Ferry County 100
32 Douglas County 99
33 Kitsap County 38
34 Columbia County 29
35 Garfield County 25
36 Skamania County 19
37 Adams County -263
38 Whitman County -994
39 Yakima County -1555