How Penn Township came to be
From Wikipedia’s history of Penn Township.
The Bridge between Monroe and Penn Townships was added to the National Register of Historic Places in 1988.
Text from Wikipedia, licensed CC BY-SA 4.0.
Each edition grades its towns against each other only.
Photo: User:Dincher · CC BY-SA 3.0More historic than 16% of U.S. towns · #1,018 of 1,035 in Pennsylvania. What drives it
Most of Penn Township was built recently: 4% of its homes predate 1940 and the median home dates from 1996. Below: 1 old photo or paper and maps from 1893 on.
More historic than 16% of U.S. towns, on its age, its old homes and the National Register.
On its age, its old homes and the National Register, Penn Township is more historic than 16% of U.S. towns, #1,018 of 1,035 in Pennsylvania. Its share of homes from before 1940 holds the grade up; its National Register listings pull it down.
Pennsylvania towns list about as much on the Register as the country (a typical Pennsylvania town has 2.1 per 10,000 residents, the U.S. 2.4), so Penn Township’s 0.0 sits below most of its state (25% of Pennsylvania towns have fewer) while its 0 listings outnumber those of 23% of U.S. towns.
Founding year: our sources. Homes: Census ACS 2020–24. National Register: National Park Service, May 2026 list; each listing counted once (boundary changes and added documentation belong to their listing), and a historic district counts its contributing buildings. How TownRatings grades history →
Read from the archive, the National Register and the record. The page puts what stands out first.
The first neighbors to add old photos shape how Penn Township’s history is told.
Every edition of the U.S. Geological Survey’s map of Penn Township. Tap a year, or press play to watch the town change.

U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Penn Township.
Two other post offices opened and closed inside today’s town.
US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).
From Wikipedia’s history of Penn Township.
The Bridge between Monroe and Penn Townships was added to the National Register of Historic Places in 1988.
Text from Wikipedia, licensed CC BY-SA 4.0.
Woven from the archive, old maps, post office records, the National Register and the people born here.
On the mapFirst mapped by the U.S. Geological Survey
In the archiveBridge between Monroe and Penn Townships, originalOne decade in the archive so far: the 1980s. Scroll each row; tap a photo for its story.
2024US 522 truss bridge over Penns Creek, Selinsgrove, PA…
2024US 522 nb entering Penn Twp., Snyder Co., PA, June 20…
2024US 522 nb approaching PA 204, June 2024
20212021-10-28 11 40 42 View north along Pennsylvania Sta…
2009Bridge between Monroe and Penn Townships marker Oct 09
2009Bridge between Monroe and Penn Townships Oct 09
2008US Route 522 - Pennsylvania
2008US Route 11 - Pennsylvania
2007Selinsgrove Speedway Turn Sign
2007Selinsgrove Speedway FrontstretchNo then-and-now pairs yet. Take a photo from the same spot as an old one and they appear here side by side.

Find the spot, match the angle, and add your photo. It becomes the first then-and-now pair on Penn Township’s page.
Retake this view · +15Nobody well known was born in Penn Township itself, so here are the best known from just nearby.





Each neighbor’s History grade, on the same three inputs.
Penn Township is more historic than 16% of U.S. towns, #1,018 of 1,035 in Pennsylvania. The History grade combines the town’s founding era, the share of homes built before 1940 and its National Register listings. It’s a character grade, so it isn’t part of the overall grade. How it works.
4% of Penn Township’s homes were built before 1940 (Census estimate, ±2.5 points), against a typical 18% for a Pennsylvania town; the median home was built in 1996.
What the archives can’t tell you, neighbors can.
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).
From Wikimedia Commons (11), Wikipedia, 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.



1893Sunbury sheet · 1:62,500