Flanders, New York

Flanders, New York
The iconic Big Duck along New York State Route 24 in Flanders.
Flanders
Location on Long Island
Flanders
Location within the state of New York
Coordinates: 40°54′18″N 72°36′42″W / 40.90500°N 72.61167°W / 40.90500; -72.61167
Country United States
State New York
CountySuffolk
TownSouthampton
Area
 • Total
12.38 sq mi (32.07 km2)
 • Land11.50 sq mi (29.78 km2)
 • Water0.88 sq mi (2.29 km2)
Elevation
6.6 ft (2 m)
Population
 (2020)
 • Total
5,098
 • Density443.3/sq mi (171.17/km2)
Time zoneUTC-5 (Eastern (EST))
 • Summer (DST)UTC-4 (EDT)
ZIP code
11901
Area codes631, 934
FIPS code36-26121
GNIS feature ID0950227

Flanders is a hamlet and a census-designated place (CDP) in Suffolk County, on Long Island, in New York, United States. The population was 5,095 at the time of the 2020 census.

It is located in the town of Southampton on the south side of the Peconic River at its mouth in Peconic Bay, roughly at the start of the South Fork of Long Island. Riverhead is across the river to the north.