Ranking of Washington Counties By Net Migration in 2023
Updated on June 18, 2025.
Based on the US Census Vintage data estimates, in 2023, the Net Migration for Washington was 49.78K. Among all Washington counties, King County had the highest net migration (18.28K), followed by Snohomish County (5.77K), and Clark County (4.38K).
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), 2023 Census.
See this for other years:
Ranking of Washington Counties By Net Migration in 2023
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| Rank | County | Net Migration |
|---|---|---|
| 1 | King County | 18282 |
| 2 | Snohomish County | 5769 |
| 3 | Clark County | 4384 |
| 4 | Spokane County | 2713 |
| 5 | Benton County | 2285 |
| 6 | Whatcom County | 2108 |
| 7 | Pierce County | 1967 |
| 8 | Grant County | 1306 |
| 9 | Lewis County | 1127 |
| 10 | Cowlitz County | 1063 |
| 11 | Grays Harbor County | 929 |
| 12 | Thurston County | 923 |
| 13 | Okanogan County | 863 |
| 14 | Stevens County | 724 |
| 15 | Douglas County | 722 |
| 16 | Mason County | 701 |
| 17 | Clallam County | 695 |
| 18 | Skagit County | 595 |
| 19 | Chelan County | 530 |
| 20 | Klickitat County | 489 |
| 21 | Kittitas County | 436 |
| 22 | Jefferson County | 402 |
| 23 | Pacific County | 350 |
| 24 | Pend Oreille County | 334 |
| 25 | Franklin County | 312 |
| 26 | Skamania County | 198 |
| 27 | Lincoln County | 171 |
| 28 | Whitman County | 143 |
| 29 | Asotin County | 114 |
| 30 | Wahkiakum County | 113 |
| 31 | Ferry County | 99 |
| 32 | Columbia County | 61 |
| 33 | Garfield County | 11 |
| 34 | San Juan County | -37 |
| 35 | Walla Walla County | -59 |
| 36 | Adams County | -145 |
| 37 | Yakima County | -163 |
| 38 | Island County | -207 |
| 39 | Kitsap County | -533 |