Mount Sinai is a hamlet located in Suffolk County, New York, on the North Shore of Long Island. It is part of the Town of Brookhaven and is known for its residential communities and proximity to the scenic Long Island Sound. The area features parks, beaches, and recreational facilities, making it a popular spot for families. The hamlet has a rich history, with roots dating back to the 17th century. Mount Sinai is home to several schools, including Mount Sinai High School, and offers various local amenities. Its community-oriented atmosphere attracts both long-time residents and newcomers alike.