Old Bethpage, New York

Old Bethpage, New York
Hamlet and census-designated place
Location in Nassau County and the state of New York.
Location within the state of New York
Coordinates: 40°45′43″N 73°27′16″W / 40.76194°N 73.45444°W / 40.76194; -73.45444
Country	United States
State	New York
County	Nassau County, New York
Area [1]
• Total	4.17 sq mi (10.80 km2)
• Land	4.17 sq mi (10.79 km2)
• Water	0.00 sq mi (0.01 km2)
Elevation	174 ft (53 m)
Population  (2020)
• Total	6,403
• Density	1,537.33/sq mi (593.62/km2)
Time zone	UTC-5 (Eastern (EST))
• Summer (DST)	UTC-4 (EDT)
ZIP code	11804
Area code	516
FIPS code	36-54551
GNIS feature ID	0959252

Old Bethpage is a hamlet and census-designated place (CDP) located on Long Island in the Town of Oyster Bay, Nassau County, New York, United States. The population of the CDP was 5,283 at the 2020 United States Census. It is served by the Old Bethpage Post Office, ZIP code 11804.

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