The Munson Township post office opened in 1857, the earliest record of the town by name. Another post office, Munson (1857), opened inside today’s town and later closed.
First census: 514 in 20002020 census: 385169 years
Founding year: the first Munson Township post office (Blevins & Helbock, CC0).
What stands out about Munson 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 Munson Township yet. The photos, dates and memories neighbors add here are how it gets written.
Munson Township is one of twenty-four townships in Henry County, Illinois, USA. As of the 2020 census, its population was 385 and it contained 127 housing units. Munson changed its name from Centre township on April 13, 1857.
Its first post office opened in 1857. Between the 2010 and 2020 censuses its population fell from 400 to 385 (-4%).
Intro from Wikipedia. Population: U.S. Census Bureau.
Timeline
Munson Township, 1857 to 1934
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 Munson Township. Tap a year, or press play to watch the town change.
1934Geneseo 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 Munson Township.
People over time
Munson Township, census by census
Between 385 and 514 people in every census since 2000.
3 censuses, 2000–2020.
U.S. Census Bureau decennial counts, from the census table on Munson Township’s Wikipedia page.
Famous people
Famous people close to Munson Township
Nobody well known was born in Munson 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, U.S. Census counts (via 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.