Rancocas State Park is a 1,252-acre protected area in Burlington County, New Jersey, spanning parts of Mount Laurel, Hainesport, and Westampton. Established in 1965 and managed by the New Jersey Division of Parks and Forestry, it occupies land near the meeting of the North and South branches of Rancocas Creek. An extensive freshwater tidal marsh defines the landscape, giving the park its distinctive river-edge character and linking its significance to the tidal freshwater habitat along the creek.