Founding year: Wikidata; Wikipedia’s history section gives the same year. First post office: 1871.The full story ↓
History grade
What drives Darlington Township’s History grade
On its age, its old homes and the National Register, Darlington Township is more historic than 70% of U.S. towns. Its share of homes from before 1940 holds the grade up; its National Register listings pull it down.
B+
HistoryA character grade: shown, never part of Darlington 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 Darlington 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 B− to A. The pre-1940 share is a Census survey estimate (±11.0 points). Two sources give 1804.
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 Darlington 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 Darlington Township. Tap a year, or press play to watch the town change.
1902New Castle 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 Darlington Township.
People over time
Darlington Township, census by census
Peaked at 465 in 1930; 249 people lived here in 2020.
17 censuses, 1860–2020.
U.S. Census Bureau decennial counts, from the census table on Darlington Township’s Wikipedia page.
Darlington was settled in 1804 and incorporated on March 28, 1820, as Greersburg. The town would subsequently change its name to Darlington on April 6, 1830, due to often being confused by locals with Greensburg, in Westmoreland County. Darlington is named for S. P. Darlington, a merchant from Pittsburgh.
Nothing in the archives for these yearsWeddings on Main Street, storms, parades, school pictures, the old store. If it’s in your family album, it belongs here.
In 1804, according to Wikidata and Wikipedia’s history of the town. Darlington Township’s post office opened in 1871, and the census of 1860 counted 301 people here.
How does Darlington Township rank for history?
Darlington Township is more historic than 70% 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 Darlington Township?
30% of Darlington Township’s homes were built before 1940 (Census estimate, ±11.0 points), against a typical 18% for a Pennsylvania town; the median home was built in 1958.
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 (12), 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.