Nanuet is a hamlet and census-designated place in the town of Clarkstown, Rockland County, New York, United States. It is located north of Pearl River, south of New City, east of Spring Valley, and west of West Nyack. It is north of Manhattan and north of the New Jersey border. It has one of three Rockland County stations on New Jersey Transit's Pascack Valley Line. The population of Nanuet was 17,882 at the 2010 census.
The opening of the New York State Thruway (Interstate 87/287), the Tappan Zee Bridge, and the Palisades Interstate Parkway in the 1950s helped usher in decades of population growth and real estate development, including the construction of the Nanuet Mall and local shopping centers.
In 2011, CNN Money ranked Nanuet 76 on its annual 100 Best Places to Live list, citing its relatively inexpensive housing and the recreation and shopping opportunities in the area. Nanuet was also ranked 24th on CNN Money's annual 100 Best Places to Live list in 2007.