The Arlington post office opened in 1885, the earliest record of the town by name. Another post office, Alkali (1881), opened inside today’s city and later closed.
First census: 356 in 18902020 census: 628141 years
Founding year: the first Arlington post office (Blevins & Helbock, CC0).The full story ↓
What stands out about Arlington’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Fire insurance maps drew every building, what it was made of and what it was used for, so insurers could price the risk of fire. Pick a year, then a sheet.
The account of how the city received its name varies; one tradition claims it was named after the lawyer Nathan Arlington Cornish, while another tradition claims that the Southern inhabitants of the city had enough clout to rename the city after Arlington, Virginia, home of general Robert E. Lee. Originally named Alkali, Arlington came into existence as a place for shipping cattle down the Columbia River. It was incorporated as Arlington by the Oregon Legislative Assembly on November 20, 1885.
The original townsite was demolished beginning in 1965 due to the scheduled inundation of Arlington by the rising waters of the Columbia River to form Lake Umatilla behind the John Day Dam. A new townsite was completed two years earlier.
Nothing in the archives for these yearsWeddings on Main Street, storms, parades, school pictures, the old store. If it’s in your family album, it belongs here.
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 (9), the Library of Congress (3), 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), the USGS Geographic Names Information System and Sanborn fire insurance maps (Library of Congress). Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.