Founding year: Wikidata. First post office: 1825.The full story ↓
History grade
What drives Greenwich Township’s History grade
On its age, its old homes and the National Register, Greenwich Township is more historic than 95% of U.S. towns, #120 of 1,035 in Pennsylvania. All 3 inputs are above most U.S. towns; its age ranks highest and its share of homes from before 1940 lowest.
A
HistoryA character grade: shown, never part of Greenwich 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 Greenwich Township’s 49.5 sits above most of its state (86% of Pennsylvania towns have fewer) while its 17 historic buildings outnumber those of 79% of U.S. towns.
NoteThe founding year comes from Wikidata alone; no second source gives 1749.
How sure. Graded on any two of the three inputs instead, the letter would range from A to A+. The pre-1940 share is a Census survey estimate (±8.0 points).
Founding year: Wikidata (other dates in Quick answers). 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 Greenwich Township’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Every edition of the U.S. Geological Survey’s map of Greenwich Township. Tap a year, or press play to watch the town change.
1909Hamburg 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 Greenwich Township.
In 1749, according to Wikidata. Greenwich Township’s post office opened in 1825, and the census of 1980 counted 2,432 people here.
How does Greenwich Township rank for history?
Greenwich Township is more historic than 95% of U.S. towns, #120 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 Greenwich Township?
7 listings: 4 buildings, among them the Lenhart Farm (listed 1978, the first), 1 historic district, the Jacob Leiby Farm, with 6 contributing buildings, and 2 structures. 17 historic buildings in all.
How old are the homes in Greenwich Township?
21% of Greenwich Township’s homes were built before 1940 (Census estimate, ±8.0 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 (2), the National Register of Historic Places (7), 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.