Rockland County is a county in the U.S. state of New York. It is about 20 miles north of downtown New York City. About 300,000 people live there. The county has five towns: Orangetown, Clarkstown, Haverstraw, Stony Point, and Ramapo. The towns are divided into hamlets. The county seat is in New City. The largest village is Spring Valley. Rockland has a minor league baseball team, the Rockland Boulders.