Ranking of Washington Counties By Net International Migration in 2015

Updated on June 21, 2025.

Based on the US Census Vintage data estimates, in 2015, the Net International Migration for Washington was 33.11K. Among all Washington counties, King County had the highest net international migration (21.67K), followed by Snohomish County (3.12K), and Pierce County (2.40K).

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 2015
King
Snohomish
Pierce
Spokane
Thurston
Whatcom
Whitman
Clark
Kitsap
Benton
Ranking of Washington Counties By Net International Migration in 2015
Items per page:
0 of 0
Rank County Net Intl. Migration
1 King County 21668
2 Snohomish County 3119
3 Pierce County 2405
4 Spokane County 852
5 Thurston County 714
6 Whatcom County 543
7 Whitman County 497
8 Clark County 445
9 Kitsap County 417
10 Benton County 387
10 Island County 387
11 Skagit County 277
12 Grant County 258
13 Franklin County 206
14 Okanogan County 119
15 Mason County 110
16 Douglas County 106
17 Clallam County 93
18 Kittitas County 90
18 Lewis County 90
19 Adams County 63
20 Yakima County 59
21 Walla Walla County 40
22 Cowlitz County 36
23 Chelan County 32
24 San Juan County 25
25 Pacific County 20
26 Columbia County 15
27 Jefferson County 9
28 Klickitat County 8
29 Stevens County 6
30 Garfield County 5
30 Grays Harbor County 5
30 Pend Oreille County 5
31 Wahkiakum County 4
32 Skamania County 3
33 Ferry County 1
33 Lincoln County 1
34 Asotin County -12