Nanuet is a hamlet (and census-designated place), in the Town of Clarkstown Rockland County, New York, United States located north of Pearl River; south of New City; east of Spring Valley and west of West Nyack. It is 19 miles north of Manhattan, and 2 miles north of the New Jersey border. It has one of three Rockland County stations on New Jersey Transit's Pascack Valley Line.
Lake Nanuet Park, part of the watershed which includes Naurashaun Brook, offers residents a summer pool and recreational baseball/softball fields, but recent massive flooding and subsequent contamination closed the park for swimming until 2011.
The opening of the New York State Thruway (Interstate 87/287), the Tappan Zee Bridge, and the Palisades Interstate Parkway in the 1950s helped improve the quality of life of the area, ushering in decades of population growth and real estate development including the construction of the Nanuet Mall and local shopping centers.