The New Jersey Meadowlands District is located approximately five miles (8 km) west of New York City in North Jersey. The district is composed of 19,730 acres (79.8 km2), approximately 31 mi2, of 14 municipalities in Bergen and Hudson counties. The District is bordered by U.S. Route 46 on the north, Routes U.S. Route 1/9 (Tonnelle Avenue) and the freight rail line owned by Norfolk Southern Railway and CSX Transportation Corp. (the former Conrail main line) on the east, the Port Authority Trans-Hudson (PATH) commuter rail lines and Pulaski Skyway on the south, and Route 17, the Pascack Valley Line, and the Kingsland rail line on the west.
The New Jersey Meadowlands Commission (NJMC; originally the Hackensack Meadowlands Development Commission) was established in 1969 to oversee development in the New Jersey Meadowlands and to ensure that the newly appreciated wetlands, and their flora and fauna, would be able to survive as a thriving ecological network after decades of industrial abuse and neglect. In 2015 NJMC was merged with the New Jersey Sports and Exposition Authority, which continues to manage land development in the district.
The District is now home to more than 265 different species of birds and is recognized as a major migratory fly-over and resting preserve. Shellfish and finfish have returned in abundance.