Oyster Bay (N.Y.)

Oyster Bay is a hamlet and census-designated place (CDP) within – and the Town Seat of – the Town of Oyster Bay, in Nassau County, on the North Shore of Long Island, in New York, United States. The population was 7,049 at the time of the 2020 census. The hamlet's area was considerably larger before several of its parts incorporated as separate villages. At least six of the 36 villages and hamlets of the Town of Oyster Bay have shores on Oyster Bay Harbor and its inlets, and many of these were previously considered part of the hamlet of Oyster Bay; three of those are now known as Mill Neck, Bayville & Centre Island. The Oyster Bay Post Office (ZIP code 11771) serves portions of the surrounding villages also, including Oyster Bay Cove, Laurel Hollow, Mill Neck, Muttontown, Centre Island, Cove Neck, and Upper Brookville.