The story so far
from Wikipedia & the U.S. CensusHarrison Township is a township in Allegheny County in the U.S. state of Pennsylvania. The population was 10,169 at the 2020 census. Pennsylvania Route 28 passes through Harrison Township, connecting Kittanning to the northeast and Pittsburgh to the southwest. Allegheny Technologies has extensive steel mill facilities in Harrison Township, including its Allegheny Ludlum Brackenridge Works. Harrison Township is located at the far northeast corner of Allegheny County. Its northern border is the Butler County line and the Allegheny River forms the township's eastern boundary with Westmoreland County. Its northeast corner also touches Armstrong County.
Harrison was established in 1863. Between the 2010 and 2020 censuses its population fell from 10,461 to 10,157 (-3%). Half of its homes were built before 1954.
Wikipedia doesn’t have a history of Harrison yet — the old photos, dates and memories neighbors add here are how it gets written.
Intro from Wikipedia, licensed CC BY-SA 4.0. Population and housing: U.S. Census Bureau.
Start Harrison’s collection
The first neighbors to add old photos shape how Harrison’s history is told.
0 of 10 decades since 1900 have photos 📦Share a family photoSign in to add one+10Harrison, decade by decade
2000
Then & now
When neighbors add old photos, retakes from the same spot appear here side by side.
Historic places
National Register · via Wikidata
From Wikimedia Commons (4) and the National Register (2). Images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.