Wikipedia doesn’t have a history of Chapman Township yet. The photos, dates and memories neighbors add here are how it gets written.
Chapman Township is a township in Clinton County, Pennsylvania, United States. The population was 886 at the 2020 census, down from 993 in 2000. It was originally settled in 1780 and became an official township on February 3, 1819. Originally part of Lycoming County, Chapman Township was incorporated into the newly formed Clinton County in 1839.
Chapman Township was established in 1780. Between the 2010 and 2020 censuses its population grew from 848 to 893 (+5%).
Intro from Wikipedia. Population: U.S. Census Bureau.
Every edition of the U.S. Geological Survey’s map of Chapman Township. Tap a year, or press play to watch the town change.
1946Young Womans Creek sheet · 1:24,000
U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Chapman Township.
People over time
Chapman Township, census by census
Between 848 and 1,240 people in every census since 1980.
5 censuses, 1980–2020.
U.S. Census Bureau decennial counts, from the census table on Chapman Township’s Wikipedia page.
Famous people
Famous people close to Chapman Township
Nobody well known was born in Chapman Township itself, so here are the best known from just nearby.
In 1780, according to Wikipedia’s history of the town. Chapman Township’s post office opened in 1875, and the census of 1980 counted 1,240 people here.
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 (1), 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.