Ranking of Washington Counties By Net International Migration Rate per 1K in 2020
Updated on June 21, 2025.
Based on the US Census Vintage data estimates, in 2020, the Net International Migration Rate per 1K for Washington was 2.39. Among all Washington counties, Whitman County had the highest net international migration rate (5.52), followed by King County (5.28), and Adams County (3.65).
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), 2020 Census.
See this for other years:
Ranking of Washington Counties By Net International Migration Rate per 1K in 2020
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| Rank | County | Net Intl. Migration Rate |
|---|---|---|
| 1 | Whitman County | 5.52 |
| 2 | King County | 5.28 |
| 3 | Adams County | 3.65 |
| 4 | Columbia County | 3.47 |
| 5 | Grant County | 3.26 |
| 6 | Okanogan County | 2.64 |
| 7 | Pacific County | 2.59 |
| 8 | Skagit County | 2.23 |
| 9 | Snohomish County | 2.19 |
| 10 | Franklin County | 2.17 |
| 11 | Douglas County | 1.84 |
| 12 | Yakima County | 1.81 |
| 13 | Mason County | 1.66 |
| 14 | Walla Walla County | 1.34 |
| 15 | Garfield County | 1.32 |
| 16 | San Juan County | 1.26 |
| 16 | Whatcom County | 1.26 |
| 17 | Skamania County | 1.07 |
| 18 | Benton County | 1.06 |
| 19 | Pierce County | 1.02 |
| 20 | Clallam County | 0.94 |
| 21 | Lewis County | 0.77 |
| 22 | Kittitas County | 0.76 |
| 23 | Island County | 0.69 |
| 24 | Thurston County | 0.58 |
| 25 | Clark County | 0.56 |
| 26 | Klickitat County | 0.44 |
| 27 | Spokane County | 0.38 |
| 28 | Kitsap County | 0.33 |
| 29 | Jefferson County | 0.28 |
| 30 | Ferry County | 0.13 |
| 31 | Lincoln County | 0.09 |
| 32 | Chelan County | 0.08 |
| 32 | Cowlitz County | 0.08 |
| 33 | Pend Oreille County | 0.07 |
| 34 | Stevens County | 0.04 |
| 35 | Grays Harbor County | 0 |
| 35 | Wahkiakum County | 0 |
| 36 | Asotin County | -0.22 |