White Swan is an unincorporated community located on the Yakama Indian Reservation, presumably named after Chief White Swan of the Yakamas around the start of the 20th century. The town was on the Mt Adams Highway (an overland road between Yakima and The Dalles beginning in the 1850s) between Union Gap and Fort Simcoe. In September 1921, the Christian Church (Disciples of Christ) opened the Yakima Indian Christian Mission. In 1967, the former childcare facilities of the Mission were leased to the Sundown M Corporation. Using the registered cattle brand of the Mission (from the years it owned cattle), the Sundown M Ranch began serving recovering alcoholics in 1968. Pacific Power & Light Company first brought electricity to the community in 1928. The White Swan Library (a branch of the Yakima Valley Regional library) was established in 1947. It was moved to a donated facility in 1969…
Founding dates: Wikidata, Wikipedia, the U.S. post office records of Blevins & Helbock (CC0) and the Census. Homes by year built: Census ACS 2020–24. National Register of Historic Places: National Park Service (list of May 22, 2026). Old photos, postcards and papers: Wikimedia Commons, the Library of Congress and other public archives, credited on each item’s page. Maps: U.S. Geological Survey historical topographic maps (via Esri) and Sanborn fire-insurance maps (Library of Congress). History text and census tables: Wikipedia (CC BY-SA 4.0). Places that used to be: USGS Geographic Names Information System (2021). How TownRatings grades history →
From the Library of Congress (6), Wikipedia, Wikidata and Wikipedia for famous people, U.S. Geological Survey historical maps, U.S. Census counts (via Wikipedia), the US Post Offices dataset (Blevins & Helbock) and the USGS Geographic Names Information System. Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.