North Bergen, New Jersey left North Bergen roughly shaped as an inverted "L". Its northern section stretches east-west and is south of the Bergen County communities Cliffside Park, Edgewater, Fairview and Ridgefield. To the east, the Hudson River creates the shared border with the borough of Manhattan in New York City. It shares a border with Carlstadt in the Hackensack River. Its north-south section lies between Secaucus to the west and to the east Guttenberg, West New York and Union City, with which it meets Jersey City at a single point at its southern end. With the separation of Secaucus in 1900, North Bergen
River Vale, New Jersey section bordering Emerson to the south, Harrington Park to the southeast, Old Tappan to the east, and Pearl River, New York to the north. Its borders are defined by the Hackensack River to the east, which was dammed to form Lake Tappan, and Pascack Brook to the south. The northern border is defined by the New York-New Jersey state border. The western border has several sections, including a section defined by an unnamed creek and a section defined by Cedar Lane. The southern portion of the township lies between the Hackensack River and Pascack Brook, and is relatively flat. The