2 of Lower Pottsgrove Township’s places are on the National Register
More historic than 50% of U.S. towns · #746 of 1,035 in Pennsylvania. What drives it
Its Register listings are the Sanatoga Union Sunday School and the Sunnybrook. Most of Lower Pottsgrove Township was built recently: 7% of its homes predate 1940 and the median home dates from 1983. Below: maps from 1984 on and the census since 1930.
What drives Lower Pottsgrove Township’s History grade
On its age, its old homes and the National Register, Lower Pottsgrove Township is more historic than 50% of U.S. towns, #746 of 1,035 in Pennsylvania. Its National Register listings hold the grade up; its share of homes from before 1940 pulls it down.
B−
HistoryA character grade: shown, never part of Lower Pottsgrove 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 Lower Pottsgrove Township’s 2.4 sits near the middle of its state (59% of Pennsylvania towns have fewer) while its 3 historic buildings outnumber those of 65% 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 (±2.2 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 Lower Pottsgrove Township’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
The name "Pottsgrove" originated from the 18th century estate of John Potts, who built a stone mansion in Stowe (now in West Pottsgrove Township). After the American Revolution's Battle of Brandywine in 1777, part of the Potts Estate became an encampment for George Washington's troops. The encampment, known as Camp Pottsgrove, lasted about two weeks until Washington's troops moved on to the battle of Germantown. The name Camp Pottsgrove stayed even after the troops moved out.
The U.S. Geological Survey’s map of Lower Pottsgrove Township.
1984Reading sheet · 1:100,000
U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Lower Pottsgrove Township.
On the National Register
2 historic places in Lower Pottsgrove Township
The country’s official list of buildings and places worth saving.
Questions about Lower Pottsgrove Township’s history
How does Lower Pottsgrove Township rank for history?
Lower Pottsgrove Township is more historic than 50% of U.S. towns, #746 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 Lower Pottsgrove Township?
Two places: the Sanatoga Union Sunday School (listed 2004) and the Sunnybrook (2005).
How old are the homes in Lower Pottsgrove Township?
7% of Lower Pottsgrove Township’s homes were built before 1940 (Census estimate, ±2.2 points), against a typical 18% for a Pennsylvania town; the median home was built in 1983.
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 Wikidata (1), the National Register of Historic Places (2), Wikipedia, U.S. Geological Survey historical maps, U.S. Census counts (via Wikipedia), 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.
