Copiague is a hamlet on Long Island in Suffolk County, New York. Copiague is an unincorporated place within the Town of Babylon. Copiague is bordered by Amityville to the west, North Amityville to the north, Lindenhurst to the east, and the Great South Bay to the south. South of Montauk Highway, Copiague is divided into three major peninsulas:
- The southwestern peninsula is known as Amity Harbor and is served by the Amityville Post Office.
- The central peninsula is known as Copiague Harbor and is served by the Copiague Post Office.
- The southeastern peninsula is known as Venice and is served by the Lindenhurst Post Office.
Population: 22,993
Zip Code: 11726
Area Code: 631
Elevation: 23′
Copiague Memorial Public Library
