In 1879, the U.S. Government gave 621 acres of land to the Northern Pacific Railway, and part of this became Ypsilanti Township and the townsite of Ypsilanti.
The townsite of Ypsilanti was platted by William Hartley Colby and a partner by the name of Lloyd DePuy. W.H. Colby had come from Ypsilanti, Michigan, so he named the new townsite after the Michigan city by that name.
The U.S. Geological Survey’s map of Ypsilanti Township.
1986Jamestown sheet · 1:100,000
U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Ypsilanti Township.
Famous people
Famous people close to Ypsilanti Township
Nobody well known was born in Ypsilanti Township itself, so here are the best known from just nearby.
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 (17), 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.