The Moscow post office opened in 1888, the earliest record of the town by name. Another post office, Valparaiso (1886), opened inside today’s city and later closed.
First census: 249 in 19302020 census: 272138 years
Founding year: the first Moscow post office (Blevins & Helbock, CC0).The full story ↓
What stands out about Moscow’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
One tradition says, the community was named for a member of de Soto's expedition, the maestro de campo (field commander) Luis de Moscoso (the source mistakenly indicates Francisco Coronado southwest expedition, but at this time Moscoso was a member of de Soto's expedition, furthermore he took command of the expedition after de Soto's death). During the settlement name registration there were a series of mistakes. The residents, in their application for a post office, had shortened it to Mosco. A postal clerk in Washington, upon receipt of their petition, being in a helpful spirit, and thinking the hay-seeds in the west did not know their spelling, added a "w" to the name, changing it to Moscow.
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 Wikimedia Commons (2), Wikipedia, 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.