Ranking of Washington Counties By Net International Migration Rate per 1K in 2018
Updated on June 21, 2025.
Based on the US Census Vintage data estimates, in 2018, the Net International Migration Rate per 1K for Washington was 3.16. Among all Washington counties, Whitman County had the highest net international migration rate (8.4), followed by King County (7.97), and Columbia County (4.46).
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.
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Related Topics: Washington Census Vintage Data Topic List.
Data Source: US Census Bureau (Vintage), 2018 Census.
See this for other years:
Ranking of Washington Counties By Net International Migration Rate per 1K in 2018
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| Rank | County | Net Intl. Migration Rate |
|---|---|---|
| 1 | Whitman County | 8.4 |
| 2 | King County | 7.97 |
| 3 | Columbia County | 4.46 |
| 4 | Snohomish County | 3.11 |
| 5 | Garfield County | 2.68 |
| 6 | Mason County | 1.95 |
| 7 | San Juan County | 1.6 |
| 7 | Whatcom County | 1.6 |
| 8 | Kittitas County | 1.37 |
| 9 | Benton County | 1.3 |
| 10 | Pacific County | 1.28 |
| 11 | Pierce County | 1.23 |
| 12 | Skagit County | 0.93 |
| 13 | Clallam County | 0.87 |
| 14 | Clark County | 0.72 |
| 15 | Okanogan County | 0.69 |
| 15 | Thurston County | 0.69 |
| 15 | Walla Walla County | 0.69 |
| 16 | Spokane County | 0.63 |
| 17 | Grant County | 0.53 |
| 18 | Douglas County | 0.52 |
| 19 | Skamania County | 0.51 |
| 20 | Lewis County | 0.5 |
| 21 | Jefferson County | 0.28 |
| 22 | Franklin County | 0.27 |
| 23 | Kitsap County | 0.18 |
| 24 | Ferry County | 0.13 |
| 24 | Stevens County | 0.13 |
| 25 | Lincoln County | 0.09 |
| 26 | Adams County | 0.05 |
| 27 | Pend Oreille County | 0 |
| 27 | Wahkiakum County | 0 |
| 28 | Cowlitz County | -0.01 |
| 29 | Klickitat County | -0.14 |
| 30 | Grays Harbor County | -0.23 |
| 31 | Asotin County | -0.4 |
| 32 | Chelan County | -0.42 |
| 33 | Yakima County | -0.56 |
| 34 | Island County | -1 |