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Quentin is an unincorporated community and census-designated place (CDP) in Lebanon County, Pennsylvania, United States. It was named after Quentin Roosevelt, youngest son of President Theodore Roosevelt. The population was 594 at the 2010 census, up from 529 at the 2000 census.
Its first post office opened in 1918. Between the 2010 and 2020 censuses its population grew from 594 to 755 (+27%).
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 (6). Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.