The Peoria Township post office opened in 1857, the earliest record of the town by name. Three smaller post offices, Peoria (1857), Larimore (1881) and Imes (1887), opened inside today’s town and later closed.
2020 census: 646169 years
Founding year: the first Peoria Township post office (Blevins & Helbock, CC0).The full story ↓
What stands out about Peoria Township’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Every edition of the U.S. Geological Survey’s map of Peoria Township. Tap a year, or press play to watch the town change.
1885Lawrence sheet · 1:125,000
U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Peoria Township.
Places that used to be
Lost post offices, old corners, places now gone and burying grounds
Three other post offices opened and closed inside today’s 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 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.