Plainview, New York

Plainview, New York
Location in Nassau County and the state of New York.
Location within the state of New York
Coordinates: 40°46′48″N 73°28′46″W / 40.78000°N 73.47944°W / 40.78000; -73.47944
Country United States
State New York
CountyNassau
Area
  Total
5.74 sq mi (14.85 km2)
  Land5.72 sq mi (14.83 km2)
  Water0.01 sq mi (0.03 km2)
Elevation
151 ft (46 m)
Population
 (2020)
  Total
27,100
  Density4,734.45/sq mi (1,827.98/km2)
Time zoneUTC-5 (Eastern (EST))
  Summer (DST)UTC-4 (EDT)
ZIP code
11803
Area code516
FIPS code36-58442
GNIS feature ID0960664

Plainview is a hamlet and census-designated place (CDP) located in the town of Oyster Bay in east central Nassau County, New York, United States. The population of the CDP as of 2020 was 27,100. The Plainview post office has the ZIP code 11803.

Plainview and its neighboring hamlet, Old Bethpage, share a school system, library, fire department, and water district. Law enforcement for the communities is provided by the Nassau County Police Department's Second and eighth Precincts.