More historic than 35% of U.S. towns · #380 of 468 in New Jersey. What drives it
Most of Cinnaminson Township was built recently: 5% of its homes predate 1940 and the median home dates from 1968. Below: 2 old photos and papers from 1900 on and the census since 1860.
From Cinnaminson Township’s archive · credits on each photo
Quick answers
How Cinnaminson Township began
When was Cinnaminson Township founded?
1836
The Cinnaminson Township post office opened in 1836, the earliest record of the town by name. Two smaller post offices, Cinnaminson (1836) and Parry (1880), opened inside today’s town and later closed.
First census: 2,701 in 18602020 census: 17,064190 years
How historic is Cinnaminson Township?
C+
More historic than 35% of U.S. towns, on its age, its old homes and the National Register.
Founding year: the first Cinnaminson Township post office (Blevins & Helbock, CC0).The full story ↓
History grade
What drives Cinnaminson Township’s History grade
On its age, its old homes and the National Register, Cinnaminson Township is more historic than 35% of U.S. towns, #380 of 468 in New Jersey. Its age holds the grade up; its National Register listings pull it down.
C+
HistoryA character grade: shown, never part of Cinnaminson Township’s overall grade.
New Jersey towns list more on the Register than most of the country (a typical New Jersey town has 3.7 per 10,000 residents, the U.S. 2.4), so Cinnaminson Township’s 0.0 sits below most of its state (12% of New Jersey 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 D to B−. The pre-1940 share (±1.4 points) is firm at this size. 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 Cinnaminson Township’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Cinnaminson was formed by resolution in 1860 from a section of Chester Township. Part of this resolution reads, "The inhabitants of the township of Chester having become so numerous that it is impracticable for them to meet with convenience and good order in one assembly... the Township shall be divided."
The name "Cinnaminson" is said to derive from the Lenape Native American word "Senamensing," which means "sweet water". Alternatively, the name may derive from Native American words meaning "stone island".
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.
The Cinnaminson Township post office opened in 1836, the earliest record of the town by name (U.S. post office records).
How does Cinnaminson Township rank for history?
Cinnaminson Township is more historic than 35% of U.S. towns, #380 of 468 in New Jersey. 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 Cinnaminson Township?
5% of Cinnaminson Township’s homes were built before 1940 (Census estimate, ±1.4 points), against a typical 15% for a New Jersey town; the median home was built in 1968.
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 (11), Wikipedia, Wikidata and Wikipedia for famous people, 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.