1 of Upper Allen Township’s places is on the National Register
More historic than 37% of U.S. towns · #887 of 1,035 in Pennsylvania. What drives it
Its Register listing is the Union Hotel. Most of Upper Allen Township was built recently: 6% of its homes predate 1940 and the median home dates from 1988. Below: maps from 1906 on.
On its age, its old homes and the National Register, Upper Allen Township is more historic than 37% of U.S. towns, #887 of 1,035 in Pennsylvania. Its National Register listings hold the grade up; its share of homes from before 1940 pulls it down.
C+
HistoryA character grade: shown, never part of Upper Allen Township’s overall grade.
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 Upper Allen Township’s 0.4 sits near the middle of its state (51% of Pennsylvania towns have fewer) while its 1 listings outnumber those of 51% of U.S. towns.
How sure. Graded on two of the three inputs, so a change in either one moves the letter more than it would with three. The pre-1940 share (±2.8 points) is firm at this size.
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 →
What stands out about Upper Allen Township’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Lost post offices, old corners and burying grounds
Another post office, Sheperdstown, opened and closed inside today’s town.
Sheperdstown
1824–1967
Bowmansdale
1878–today
Grantham
1892–today
18201920today
Hamlets and corners on the map
AllenviewBowmansdaleCountry EstatesFlintlock RidgeGranthamHollidayKimberly MeadowsLimekiln AcresMount AllenMount Allen EstatesNantillyOrchard TerraceReservoir HillRose GardenShepherdstownSpring Run AcresSpring Run ManorSunnylandWaseka AcresWebercroftWinding HeightsWinding Hill
9cemeteries and burying grounds inside Upper Allen Township
Chestnut HillCocklins ChurchGate of HeavenGrantham Memorial ParkLantzLincolnMohler DunkerTemple Beth Shalom Memorial ParkWinding Hill Mennonite
US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).
Help out
Start Upper Allen Township’s collection
The first neighbors to add old photos shape how Upper Allen Township’s history is told.
Decades since 1900 with photos
00s10s20s30s40s50s60s70s80s90s
0 of 10 decades. The empty ones are waiting for someone’s album.
Every edition of the U.S. Geological Survey’s map of Upper Allen Township. Tap a year, or press play to watch the town change.
1906New Cumberland 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 Upper Allen Township.
The story so far
Upper Allen Township, in brief
Wikipedia doesn’t have a history of Upper Allen Township yet. The photos, dates and memories neighbors add here are how it gets written.
Upper Allen Township is a township in Cumberland County, Pennsylvania, United States. The population was 23,183 at the 2020 census, up from 18,059 at the 2010 census.
Between the 2010 and 2020 censuses its population grew from 18,059 to 23,183 (+28%).
Intro from Wikipedia. Population: U.S. Census Bureau.
Timeline
Upper Allen Township, 1824 to 1967
Woven from the archive, old maps, post office records, the National Register and the people born here.
Upper Allen Township is more historic than 37% of U.S. towns, #887 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.
What is on the National Register in Upper Allen Township?
One place: the Union Hotel (listed 1989).
How old are the homes in Upper Allen Township?
6% of Upper Allen Township’s homes were built before 1940 (Census estimate, ±2.8 points), against a typical 18% for a Pennsylvania town; the median home was built in 1988.
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 the National Register of Historic Places (1), 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.