Ranking of Washington Counties By Net International Migration in 2023

Updated on June 21, 2025.

Based on the US Census Vintage data estimates, in 2023, the Net International Migration for Washington was 67.07K. Among all Washington counties, King County had the highest net international migration (39.87K), followed by Snohomish County (8.33K), and Pierce County (4.35K).

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 International Migration in 2023
King
Snohomish
Pierce
Clark
Yakima
Spokane
Thurston
Benton
Grant
Franklin
Ranking of Washington Counties By Net International Migration in 2023
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Rank County Net Intl. Migration
1 King County 39872
2 Snohomish County 8333
3 Pierce County 4353
4 Clark County 1859
5 Yakima County 1467
6 Spokane County 1322
7 Thurston County 913
8 Benton County 886
9 Grant County 848
10 Franklin County 843
11 Kitsap County 842
12 Whatcom County 787
13 Okanogan County 687
14 Chelan County 601
15 Skagit County 574
16 Whitman County 489
17 Douglas County 369
18 Mason County 325
19 Island County 245
20 Walla Walla County 205
21 Grays Harbor County 197
22 Klickitat County 178
23 Lewis County 162
24 Cowlitz County 153
25 Adams County 142
26 Clallam County 136
27 Pacific County 58
28 Kittitas County 56
29 Jefferson County 50
30 San Juan County 47
31 Asotin County 23
32 Ferry County 17
33 Stevens County 11
34 Lincoln County 6
35 Skamania County 5
36 Columbia County 4
37 Pend Oreille County 3
38 Garfield County 0
38 Wahkiakum County 0