Tinicum Township’s post office opened in 1884, and 25% of its homes were built before 1940
More historic than 81% of U.S. towns · #310 of 1,035 in Pennsylvania. What drives it
11 places in town are on the National Register, among them two historic districts with 107 buildings between them. Below: 1 old photo or paper, maps from 1890 on, and the census since 1930.
From Tinicum Township’s archive · credits on each photo
Quick answers
How Tinicum Township began
When was Tinicum Township founded?
1884
The Tinicum Township post office opened in 1884, the earliest record of the town by name. Four smaller post offices, Mattsville (1828), Uhlerstown (1871) and Tinicum (1884), opened inside today’s town and later closed.
First census: 1,330 in 19302020 census: 3,818142 years
How historic is Tinicum Township?
A−
More historic than 81% of U.S. towns, on its age, its old homes and the National Register.
Founding year: the first Tinicum Township post office (Blevins & Helbock, CC0).The full story ↓
History grade
What drives Tinicum Township’s History grade
On its age, its old homes and the National Register, Tinicum Township is more historic than 81% of U.S. towns, #310 of 1,035 in Pennsylvania. Its National Register listings hold the grade up; its age pulls it down.
A−
HistoryA character grade: shown, never part of Tinicum 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 Tinicum Township’s 332 sits above most of its state (93% of Pennsylvania towns have fewer) while its 127 historic buildings outnumber those of 91% 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 (±7.8 points). The founding year is the first post office, not a stated founding date.
Founding year: the first post office (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 Tinicum Township’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
8cemeteries and burying grounds inside Tinicum Township
Erwin FamilyHillpotLower Tinicum UnionMarshall - Cooper - RidgePoint Pleasant Baptist ChurchRed Hill Saint Lukes United Church of ChristRock Ridge ChapelUpper Tinicum
US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).
Help out
Start Tinicum Township’s collection
The first neighbors to add old photos shape how Tinicum 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 Tinicum Township. Tap a year, or press play to watch the town change.
1890Doylestown 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 Tinicum Township.
The Tinicum Township post office opened in 1884, the earliest record of the town by name (U.S. post office records).
How does Tinicum Township rank for history?
Tinicum Township is more historic than 81% of U.S. towns, #310 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 Tinicum Township?
11 listings: 6 buildings, among them the Red Hill Church and School (listed 1978, the first), 2 historic districts, the Ridge Valley Rural Historic District and the Uhlerstown Historic District, with 107 contributing buildings, and 3 structures. 127 historic buildings in all.
How old are the homes in Tinicum Township?
25% of Tinicum Township’s homes were built before 1940 (Census estimate, ±7.8 points), against a typical 18% for a Pennsylvania town; the median home was built in 1972.
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), the National Register of Historic Places (11), 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.