Lost two-thirds of its people between 1930 and 1950, then grew more than tenfold.
11 censuses, 1920–2020.
U.S. Census Bureau decennial counts, from the census table on Dering Harbor’s Wikipedia page.
On the map
Dering Harbor on the map, 1904 to 1956
Every edition of the U.S. Geological Survey’s map of Dering Harbor. Tap a year, or press play to watch the town change.
1904Shelter Island 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 Dering Harbor.
Dering Harbor incorporated as a village in 1916. It had been a popular resort community since the 19th Century. According to The New York Times, it is rumored that the village decided to incorporate as a means of preventing "Coney Island-style concessions" from popping up in the area.
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 Wikipedia, U.S. Geological Survey historical maps and U.S. Census counts (via Wikipedia). Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.