Port Washington is a hamlet in Nassau County, New York on the North Shore of Long Island. Port Washington is an unincorporated area within and directly governed by the town of North Hempstead.
Port Washington includes the communities of Baxter Estates, Manorhaven, Port Washington North, Sands Point, Beacon Hill, Beacon Hill Colony, Manhasset Isle, New Salem, and northern Flower Hill as these areas share the same ZIP code, school and library districts.