Greenvale is a small, unincorporated community located in Nassau County, New York. It is part of the larger town of North Hempstead and is known for its suburban atmosphere, featuring residential neighborhoods and green spaces. The area is primarily residential, with a mix of single-family homes and some local businesses. The community is served by the North Shore School District, which provides educational opportunities for families in the area. Greenvale is conveniently located near major roadways, making it accessible to nearby towns and cities, including Roslyn and Manhasset.