West Sayville is a hamlet and census-designated place (CDP) within the Town of Islip in Suffolk County, New York. West Sayville is located on the south shore of Long Island, and its coastline borders the Great South Bay. West Sayville is home to the Long Island Maritime Museum. The public library that is located here is called the Hervey Garrett Smith Library.
Population: 5,011
Zip Code: 11796
Area Code: 631
Elevation: 13′
Greater Sayville Chamber of Commerce
