Among the most historic 1% of U.S. towns · #3 of 468 in New Jersey. What drives it
6 places in town are on the National Register, among them the Hadrosaurus Foulkii Leidy Site, a National Historic Landmark, and two historic districts with 476 buildings between them. Below: 11 old photos and papers, maps from 1887 on, and the census since 1850.
On its age, its old homes and the National Register, Haddonfield is among the most historic 1% of U.S. towns, #3 of 468 in New Jersey. All 2 inputs put Haddonfield near the top nationally; its share of homes from before 1940 ranks highest.
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HistoryA character grade: shown, never part of Haddonfield’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 Haddonfield’s 380 sits above most of its state (94% of New Jersey towns have fewer) while its 479 historic buildings outnumber those of 97% of U.S. towns.
How sure. Graded on two of the three inputs, so a change in either one moves the letter more than it would with three. The pre-1940 share is a Census survey estimate (±4.6 points).
Founding year: our sources. 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 Haddonfield’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
National Park Service, National Register of Historic Places. Photos from Wikimedia Commons, credited on each place’s page.
On the map
Haddonfield on the map, 1891 to 1994
Every edition of the U.S. Geological Survey’s map of Haddonfield. Tap a year, or press play to watch the town change.
1891Philadelphia 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 Haddonfield.
Every building
Haddonfield, building by building, 1887–1923
Fire insurance maps drew every building, what it was made of and what it was used for, so insurers could price the risk of fire. Pick a year, then a sheet.
The Lenape were indigenous to Haddonfield and the surrounding area, but this Native American tribe largely disappeared following European arrival. Arrowheads and pottery shards have been found by the banks of the Cooper River. The Lenape heritage of the borough is marked with a monument marking their connection to the area.
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.
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.
Haddonfield is among the most historic 1% of U.S. towns, #3 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.
What is on the National Register in Haddonfield?
6 listings: 3 buildings, among them the Indian King Tavern (listed 1970, the first), 2 historic districts, the Haddonfield Historic District and the Cooper River Park Historic District, with 476 contributing buildings, and 1 site. 479 historic buildings in all.
How old are the homes in Haddonfield?
50% of Haddonfield’s homes were built before 1940 (Census estimate, ±4.6 points), against a typical 15% for a New Jersey town; the median home was built in 1938.
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), Wikidata (1), the National Register of Historic Places (6), Wikipedia, Wikidata and Wikipedia for famous people, U.S. Geological Survey historical maps, U.S. Census counts (via Wikipedia), the US Post Offices dataset (Blevins & Helbock), the USGS Geographic Names Information System and Sanborn fire insurance maps (Library of Congress). Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.