On its age, its old homes and the National Register, Harrington Park is more historic than 52% of U.S. towns, #294 of 468 in New Jersey. Its share of homes from before 1940 holds the grade up; its age pulls it down.
B−
HistoryA character grade: shown, never part of Harrington Park’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 Harrington Park’s 8.1 sits above most of its state (66% of New Jersey towns have fewer) while its 4 listings outnumber those of 68% of U.S. towns.
How sure. Graded on any two of the three inputs instead, the letter would range from C to A−. The pre-1940 share is a Census survey estimate (±8.6 points).
Founding year: the first census (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 Harrington Park’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 Harrington Park. Tap a year, or press play to watch the town change.
1897Harlem 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 Harrington Park.
On the National Register
4 historic places in Harrington Park
The country’s official list of buildings and places worth saving.
National Park Service, National Register of Historic Places. Photos from Wikimedia Commons, credited on each place’s page.
The story so far
Harrington Park, in brief
Wikipedia doesn’t have a history of Harrington Park yet. The photos, dates and memories neighbors add here are how it gets written.
Harrington Park is a borough in Bergen County, in the U.S. state of New Jersey. As of the 2020 United States census, the borough's population was 4,741, an increase of 77 (+1.7%) from the 2010 census count of 4,664, which in turn reflected a decrease of 76 (−1.6%) from the 4,740 counted in the 2000 census. Harrington Park was formed on March 29, 1904, from portions of Harrington Township and Washington Township, and parts of the borough of Closter. The name Harrington Park was based on the larger Harrington Township from which it was in part derived, which in turn was based on the Harring family, early settlers to the region.
Its first post office opened in 1900. Its population held steady between the last two censuses: 4,664 in 2010, 4,741 in 2020.
Intro from Wikipedia. Population: U.S. Census Bureau.
Timeline
Harrington Park, 1897 to 1989
Woven from the archive, old maps, post office records, the National Register and the people born here.
The Harrington Park post office opened in 1900, the earliest record of the town by name (U.S. post office records). Wikidata gives 1904.
How does Harrington Park rank for history?
Harrington Park is more historic than 52% of U.S. towns, #294 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 Harrington Park?
4 listings: 4 buildings, among them the Blanch-Haring House (listed 1983, the first).
How old are the homes in Harrington Park?
23% of Harrington Park’s homes were built before 1940 (Census estimate, ±8.6 points), against a typical 15% for a New Jersey town; the median home was built in 1962.
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 (13), Wikidata (3), the National Register of Historic Places (4), 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) 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.