The Millersburg Township post office opened in 1838, the earliest record of the town by name. Another post office, Millersburg (1838), opened inside today’s town and later closed.
2020 census: 639188 years
Founding year: the first Millersburg Township post office (Blevins & Helbock, CC0).
What stands out about Millersburg Township’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Wikipedia doesn’t have a history of Millersburg Township yet. The photos, dates and memories neighbors add here are how it gets written.
Millersburg is an unincorporated community and census-designated place in Millersburg Township, Mercer County, Illinois, United States. As of the 2020 census, it had a population of 54. Millersburg is 4.5 miles (7.2 km) northwest of Aledo.
Its first post office opened in 1838. Between the 2010 and 2020 censuses its population fell from 755 to 639 (-15%).
Intro from Wikipedia. Population: U.S. Census Bureau.
Timeline
Millersburg Township, 1838 to 1935
Woven from the archive, old maps, post office records, the National Register and the people born here.
Every edition of the U.S. Geological Survey’s map of Millersburg Township. Tap a year, or press play to watch the town change.
1935Keithsburg sheet · 1:62,500
U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Millersburg Township.
Famous people
Famous people close to Millersburg Township
Nobody well known was born in Millersburg 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 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.