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Quick answers
How Charlestown began
When was Charlestown founded?
1849
The Charlestown post office opened in 1849, the earliest record of the town by name. Another post office, Hayton (1873), opened inside today’s town and later closed.
2020 census: 774177 years
Founding year: the first Charlestown post office (Blevins & Helbock, CC0).
What stands out about Charlestown’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 Charlestown yet. The photos, dates and memories neighbors add here are how it gets written.
Charlestown is a town in Calumet County in the U.S. state of Wisconsin. The population was 774 at the 2020 census, a tiny decrease of 775 at the 2010 census. The unincorporated community of Hayton is located in the town.
Its first post office opened in 1849. Its population held steady between the last two censuses: 775 in 2010, 774 in 2020.
Intro from Wikipedia. Population: U.S. Census Bureau.
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 (2), 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.