The Wasioja Township post office opened in 1856, the earliest record of the town by name. Another post office, Wasioja (1856), opened inside today’s town and later closed.
2020 census: 850170 years
Founding year: the first Wasioja Township post office (Blevins & Helbock, CC0).The full story ↓
What stands out about Wasioja Township’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Wasioja was settled in 1854 and platted in 1856. A post office was established at Wasioja in 1856, and remained in operation until 1911. Wasioja is derived from the native Dakota-language name for the Zumbro River - Ważí Ożú Wakpá, meaning the "pine grove" river. By 1860, the community's population had reached 1,000, its economy driven by limestone quarries, lumber, and agriculture. In 1860 the Minnesota Seminary was opened on the outskirts of town.
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 (6), the National Register of Historic Places (1), 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.