Ranking of Washington Counties By Net International Migration Rate per 1K in 2015
Updated on June 18, 2025.
Based on the US Census Vintage data estimates, in 2015, the Net International Migration Rate per 1K for Washington was 4.66. Among all Washington counties, Whitman County had the highest net international migration rate (10.44), followed by King County (10.29), and Island County (4.87).
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.
Related Topics: Washington Census Vintage Data Topic List.
Data Source: US Census Bureau (Vintage), 2015 Census.
See this for other years:
Ranking of Washington Counties By Net International Migration Rate per 1K in 2015
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| Rank | County | Net Intl. Migration Rate |
|---|---|---|
| 1 | Whitman County | 10.44 |
| 2 | King County | 10.29 |
| 3 | Island County | 4.87 |
| 4 | Snohomish County | 4.08 |
| 5 | Columbia County | 3.78 |
| 6 | Adams County | 3.29 |
| 7 | Okanogan County | 2.88 |
| 8 | Pierce County | 2.87 |
| 9 | Grant County | 2.77 |
| 10 | Thurston County | 2.68 |
| 11 | Douglas County | 2.64 |
| 12 | Whatcom County | 2.59 |
| 13 | Franklin County | 2.34 |
| 14 | Skagit County | 2.29 |
| 15 | Garfield County | 2.26 |
| 16 | Kittitas County | 2.1 |
| 17 | Benton County | 2.05 |
| 18 | Mason County | 1.81 |
| 19 | Spokane County | 1.75 |
| 20 | Kitsap County | 1.63 |
| 21 | San Juan County | 1.56 |
| 22 | Clallam County | 1.28 |
| 23 | Lewis County | 1.2 |
| 24 | Wahkiakum County | 1 |
| 25 | Clark County | 0.98 |
| 26 | Pacific County | 0.96 |
| 27 | Walla Walla County | 0.67 |
| 28 | Chelan County | 0.43 |
| 29 | Klickitat County | 0.38 |
| 29 | Pend Oreille County | 0.38 |
| 30 | Cowlitz County | 0.35 |
| 31 | Jefferson County | 0.3 |
| 32 | Skamania County | 0.26 |
| 33 | Yakima County | 0.24 |
| 34 | Stevens County | 0.14 |
| 35 | Ferry County | 0.13 |
| 36 | Lincoln County | 0.1 |
| 37 | Grays Harbor County | 0.07 |
| 38 | Asotin County | -0.54 |