Syosset is a hamlet and census-designated place in Nassau County, New York, United States, in the northeastern section of the Town of Oyster Bay, on the North Shore of Long Island. Syosset is served by the Syosset railroad station, the Syosset Post Office, the Syosset Central School District, the Syosset Public Library, the Syosset Fire Department, and the Jericho Water District. The population was 18,829 at the 2010 census. Syosset is located approximately... Show more

source