Photo: Mr. Matté (if there is an issue with this image, contact me using this image's Commons talk page, my Commons user talk page, or my English Wikipedia user talk page; I'll know about it a lot faster) · CC BY-SA 4.0
Quick answers
How Dean Township began
When was Dean Township founded?
1890
The Dean Township post office opened in 1890, the earliest record of the town by name. Another post office, Dean (1890), opened inside today’s town and later closed.
2020 census: 328136 years
Founding year: the first Dean Township post office (Blevins & Helbock, CC0).
What stands out about Dean Township’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).
On the map
Dean Township on the map, 1920 to 1993
Every edition of the U.S. Geological Survey’s map of Dean Township. Tap a year, or press play to watch the town change.
1920Altoona 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 Dean Township.
The story so far
Dean Township, in brief
Wikipedia doesn’t have a history of Dean Township yet. The photos, dates and memories neighbors add here are how it gets written.
Dean is a village and an unincorporated community within Dean Township in Cambria County, Pennsylvania, United States. It is part of the Johnstown, Pennsylvania Metropolitan Statistical Area.
Its first post office opened in 1890. Between the 2010 and 2020 censuses its population fell from 391 to 328 (-16%).
Intro from Wikipedia. Population: U.S. Census Bureau.
Timeline
Dean Township, 1888 to 1967
Woven from the archive, old maps, post office records, the National Register and the people born 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 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.