The Underhill post office opened in 1888, the earliest record of the town by name. Three smaller post offices, Linwood (1885), Mosling (1897) and Hintz (1898), opened inside today’s town and later closed.
2020 census: 864138 years
Founding year: the first Underhill post office (Blevins & Helbock, CC0).The full story ↓
What stands out about Underhill’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
The Menominee call this place Kāēkāēaweqnikoniw, an archaic name meaning "crossing the portage". It falls within traditional Menominee territory which was ceded to the United States in the 1836 Treaty of the Cedars as part of the negotiations about how to accommodate the Oneida, Stockbridge-Munsee and Brothertown peoples who had been removed from New York to Wisconsin. The town was later named in English after William Underhill, a white settler from Vermont. The town did have an operating post office established in 1888 until it was discontinued in 1976.
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 (4), 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.