Washington

Admitted to the Union on November 11, 1889 as the 42nd state. Prior to statehood, enumerated as part of the Oregon Territory, and later Washington Territory (created in 1853).

  • 1850 – 1940 federal censuses extant for all counties except for 1890.
Adams Asotin Benton Chelan
Clallam Clark Columbia Cowlitz
Douglas Ferry Franklin Garfield
Grant Grays Harbor Island Jefferson
King Kitsap Kittitas Klickitat
Lewis Lincoln Mason Okanogan
Pacific Pend Oreille Pierce San Juan
Skagit Skamania Snohomish Spokane
Stevens Thurston Wahkiakum Walla Walla
Whatcom Whitman Yakima