Oceanside, New York

Oceanside, New York
Oceanside's Liberty Lighthouse on the Veterans Triangle in 2021.
Location in Nassau County and the state of New York.
Oceanside, New York
Location on Long Island
Oceanside, New York
Location within the state of New York
Coordinates: 40°38′11″N 73°38′15″W / 40.63639°N 73.63750°W / 40.63639; -73.63750
Country United States
State New York
CountyNassau
TownHempstead
Area
  Total
5.43 sq mi (14.06 km2)
  Land4.93 sq mi (12.77 km2)
  Water0.50 sq mi (1.30 km2)
Elevation
10 ft (3 m)
Population
 (2020)
  Total
32,637
  Density6,620.08/sq mi (2,556.05/km2)
Time zoneUTC-5 (Eastern (EST))
  Summer (DST)UTC-4 (EDP)
ZIP code
11572
Area codes516, 363
FIPS code36-54441
GNIS feature ID0959214

Oceanside is a hamlet and census-designated place (CDP) located in the southern part of the town of Hempstead, Nassau County, New York, United States. The population was 32,109 at the 2010 census.