Washington Net Domestic Migration By County in 2021

Updated on June 21, 2025.

According to the US Census Bureau estimates, in 2021, the net domestic migration for Washington was -15,688. Clark County had the highest net domestic migration (5,731) followed by Spokane County (3,558), and Benton County (2,285). On the other hand, King County had the lowest net domestic migration (-37,352), followed by Whitman County (-4,343), and Yakima County (-1,481).

Net Domestic Migration for a given county refers to the the difference between number of people moving to the county from other parts of the United States (excluding Puerto Rico) and number of people moving out of the county to other parts of the United States (excluding Puerto Rico).

You can also see similar information for other states and also by state for the United States.

Hover over or click on the chart to see this information for each county. The data can also be filtered, sorted, and explored further in a table below.

See this for other years:
Washington Net Domestic Migration By County in 2021
Items per page:
0 of 0
County Net Domestic Migration
Adams -226
Asotin 218
Benton 2285
Chelan 495
Clallam 1672
Clark 5731
Columbia 100
Cowlitz 817
Douglas 619
Ferry 129
Franklin -202
Garfield 65
Grant 336
Grays Harbor 1349
Island 679
Jefferson 813
King -37352
Kitsap 301
Kittitas -1096
Klickitat 405
Lewis 2237
Lincoln 403
Mason 1363
Okanogan 622
Pacific 713
Pend Oreille 508
Pierce -842
San Juan 886
Skagit 1007
Skamania 183
Snohomish 962
Spokane 3558
Stevens 1163
Thurston 1467
Wahkiakum 177
Walla Walla -419
Whatcom -990
Whitman -4343
Yakima -1481