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Where are people moving in Washington?

Columbia County (23.2 per 1,000 residents), Mason County (19.4 per 1,000 residents) and Wahkiakum County (17.4 per 1,000 residents) drew the most people from other U.S. counties for their size in Washington in 2025.

Data as of 2025 · updated

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All 39 ranked Washington counties

Washington counties ranked by net domestic migration per 1,000 residents
RankCountyPer 1,000 residents, 2025Net movers 2025Residents
1Columbia County23.2+964,141
2Mason County19.4+1,38471,165
3Wahkiakum County17.4+854,873
4Lincoln County15.3+18311,982
5Douglas County14.8+68846,473
6Kittitas County13.1+63748,803
7Pend Oreille County12.7+18314,457
8Stevens County11.6+57749,668
9Clallam County11.4+89578,202
10Pacific County11.0+26724,357
11Lewis County10.7+94188,062
12Jefferson County10.1+34433,970
13Cowlitz County9.4+1,080114,885
14Benton County6.5+1,435221,722
15Clark County6.4+3,400532,119
16Kitsap County6.4+1,801283,374
17Whatcom County6.1+1,434236,392
18Garfield County5.8+142,416
19Klickitat County5.4+13124,331
20Thurston County5.2+1,575304,261
21Whitman County5.2+25148,512
22Walla Walla County4.4+27562,361
23Grays Harbor County4.3+33678,144
24San Juan County3.8+7018,577
25Skagit County3.6+482132,975
26Ferry County3.3+257,517
27Spokane County2.4+1,331558,344
28Skamania County2.3+2912,669
29Okanogan County1.5+6645,230
30Pierce County1.2+1,182946,288
31Chelan County0.9+7481,941
32Snohomish County−0.6−525870,656
33Asotin County−0.8−1722,545
34Franklin County−0.9−97102,612
35Grant County−2.5−263105,727
36Island County−3.6−31285,657
37King County−3.9−9,0792,344,939
38Yakima County−6.0−1,550259,185
39Adams County−8.8−19021,488

How this is ranked

Net domestic migration from the Census Bureau's population estimates for 2025: people who moved in from other U.S. counties minus people who moved out, per 1,000 residents. Moves from and to other countries are not included. Counties with fewer than 1,000 residents, or without a figure for the same period as the others, are not ranked.

Source: U.S. Census Bureau, Population Estimates Program (Vintage 2025). Figures come from public federal statistics and are informational only, not investment advice. Check the source before relying on a number. Methodology: how ranks and figures are built. More on every layer: data sources and licences.

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Questions

Which county in Washington gains the most people from other counties?

Columbia County: 23.2 per 1,000 residents, ahead of Mason County (19.4 per 1,000 residents) and Wahkiakum County (17.4 per 1,000 residents), of 39 Washington counties ranked.

How is this ranking calculated?

Net domestic migration from the Census Bureau's population estimates for 2025: people who moved in from other U.S. counties minus people who moved out, per 1,000 residents. Moves from and to other countries are not included. Counties with fewer than 1,000 residents, or without a figure for the same period as the others, are not ranked.

More county rankings for Washington

Net domestic migration per 1,000 residents in other states

Across the U.S.