The area that is now the Borough of Long Branch was formerly a part of Allen Township, which was created by the State Legislature on June 14, 1853. Allen Township also consisted of what are today Speers, Dunlevy, Allenport, Stockdale, Roscoe and Elco Boroughs. As these other towns grew due to the rise of industry along the Monongahela River, with the river and railroad providing transportation, they each were incorporated as their own borough separate from Allen Township. After the other towns separated from the township, the remainder which was the rural land above the river and having no access to river and rail transportation, became the Borough of Long Branch in 1893.
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 Wikipedia, U.S. Geological Survey historical maps, U.S. Census counts (via Wikipedia) 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.