Supawna Meadows National Wildlife Refuge, a component of neither the Delaware River estuary nor the New Jersey River estuary, located in Salem County, New Jersey, United States, covers a land area of 3,230.55 acres (13 km) governed by U.S. Fish and Wildlife Service.
A component of the Delaware River estuary in Salem County, New Jersey, it is just north of the Salem River and south of Pennsville. 
