Most of Deer Park was built recently: 4% of its homes predate 1940 and the median home dates from 1964. Below: 8 old photos and papers and maps from 1901 on.
Deer Park is located in the pine barrens in the northeastern corner of the town of Babylon. The town originally grew out of Jacob Conklin's 1610 settlement of the Half Way Hollow Hills, later known as Wheatley Heights. Charles Wilson started what is now Deer Park in 1853 about eleven years after the Long Island Rail Road arrived in 1842-when he established a large and productive farm. A post office was opened in 1851, closed in 1872 and re-opened on July 1, 1873. Deer Park had an elementary school in 1874. Prior to 1923, the Deer Park School District took in Deer Park and Wyandanch.
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.
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). How TownRatings grades history →
From Wikimedia Commons (12), Wikipedia, Wikidata and Wikipedia for famous people and U.S. Geological Survey historical maps. Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.