The Svensen post office opened in 1895, the earliest record of the town by name. Another post office, Hare (1891), opened inside today’s town and later closed.
2020 census: 853131 years
Founding year: the first Svensen post office (Blevins & Helbock, CC0).The full story ↓
What stands out about Svensen’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Svensen and Svensen Island are separated by Svensen Slough on the south side of the Columbia River at River Mile 24, between Settler's Point (downstream) and Knappa (upstream). The Lewis and Clark Expedition encamped in this area on November 26, 1805, en route to winter camp at Fort Clatsop. The Corps of Discovery again passed through the area on March 24, 1806 on their return journey.
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 (5), Wikipedia, U.S. Geological Survey historical maps, 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.