New City is a hamlet and census-designated place in the town of Clarkstown, Rockland County, New York, United States, part of the New York Metropolitan Area. An affluent suburb of New York City, the hamlet is located 18 miles (29 km) north of the city at its closest point, Riverdale, Bronx. Within Rockland County, New City is located north of Bardonia, northeast of Nanuet, east of New Hempstead, south of Garnerville, and west, straight across Lake Deforest, of Congers.