Founding year: Wikipedia. First post office: 1892.
History grade
What drives Thornhurst Township’s History grade
On its age, its old homes and the National Register, Thornhurst Township is more historic than 30% of U.S. towns. Its share of homes from before 1940 holds the grade up; its National Register listings pull it down.
C
HistoryA character grade: shown, never part of Thornhurst 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 Thornhurst 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.
How sure. Graded on any two of the three inputs instead, the letter would range from C− to C+. The pre-1940 share is a Census survey estimate (±6.6 points). Two sources give 1878.
Founding year: Wikipedia (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 Thornhurst 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 Thornhurst Township. Tap a year, or press play to watch the town change.
1922Stoddartsville 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 Thornhurst Township.
The story so far
Thornhurst Township, in brief
Wikipedia doesn’t have a history of Thornhurst Township yet. The photos, dates and memories neighbors add here are how it gets written.
Thornhurst Township is a township in Lackawanna County, Pennsylvania, United States. The population was 1,012 at the 2020 census. The area is a part of the Pocono Mountains region. The township was established in 1878 as Lehigh Township, so named for the Lehigh River. In 1996, to eliminate confusion between this and the township of the same name in Wayne County, the township changed its name to Thornhurst, the name of a community within the southern portion of the township.
Thornhurst Township was established in 1878. Between the 2010 and 2020 censuses its population fell from 1,085 to 1,008 (-7%).
Intro from Wikipedia. Population: U.S. Census Bureau.
Timeline
Thornhurst Township, 1878 to 1955
Woven from the archive, old maps, post office records, the National Register and the people born here.
In 1878, according to Wikipedia’s history of the town. Thornhurst Township’s post office opened in 1892.
How does Thornhurst Township rank for history?
Thornhurst Township is more historic than 30% of U.S. towns. 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.
How old are the homes in Thornhurst Township?
12% of Thornhurst Township’s homes were built before 1940 (Census estimate, ±6.6 points), against a typical 18% for a Pennsylvania town; the median home was built in 1986.
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 Library of Congress (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.