Bethpage State Park is a 1,477-acre (5.98 km2) New York state park on the border of Nassau County and Suffolk County on Long Island. The park contains tennis courts, picnic and recreational areas and a polo field, but is best known for its five golf courses, including the Bethpage Black Course, which hosted the 2002 and 2009 U.S. Open Golf Championships and the 2019 PGA Championship.