Selden, New York

Selden, New York
The Selden Campus of Suffolk County Community College, located within the hamlet
U.S. census map of Selden
Selden
Location on Long Island
Selden
Location within the state of New York
Coordinates: 40°52′15″N 73°2′49″W / 40.87083°N 73.04694°W / 40.87083; -73.04694
Country United States
State New York
CountySuffolk
TownBrookhaven
Named afterHenry R. Selden
Area
  Total
4.55 sq mi (11.78 km2)
  Land4.55 sq mi (11.78 km2)
  Water0.00 sq mi (0.00 km2)
Elevation
89 ft (27 m)
Population
 (2020)
  Total
21,262
  Density4,673.99/sq mi (1,804.66/km2)
Time zoneUTC−05:00 (Eastern Time Zone)
  Summer (DST)UTC−04:00
ZIP Code
11784
Area code(s)631, 934
FIPS code36-66212
GNIS feature ID0964814

Selden (historically known as Westfield) is a hamlet and census-designated place (CDP) in the Town of Brookhaven in Suffolk County, New York, United States. The population was 21,262 at the time of the 2020 census.