Spring Valley is a village in the towns of Ramapo and Clarkstown in Rockland County, New York, United States. It is located north of Chestnut Ridge, east of Airmont and Monsey, south of Hillcrest, and west of Nanuet. The population was 33,066 at the 2020 census, making it the 2nd most populous community in Rockland County, after New City. Spring Valley is 22 miles (35 km) north of Manhattan and 5 miles (8 km) north of the New Jersey border.