Denville is an active commuter railroad train station in Denville Township, Morris County, New Jersey. Located on Estling Road, the station contains three side platforms–two curved low-level platforms that service New Jersey Transit's Morristown Line, and a third that services their Montclair-Boonton Line. Both platforms on the Morristown Line contain miniature high-level platforms for handicap accessibility. Trains on both lines operate between Hoboken Terminal, New York Penn Station and Hackettstown. Heading westbound, the next station is Dover while the next station east on the Morristown Line is Mount Tabor. The next station east on the Montclair-Boonton Line is Mountain Lakes.

Denville Township is a township in Morris County in the U.S. state of New Jersey. It is a commuter town of New York City in the New York metropolitan area, located 35 miles (56 km) west of Manhattan. As of the 2020 United States census, the township's population was 17,107, an increase of 472 (+2.8%) from the 2010 census count of 16,635, which in turn reflected an increase of 811 (+5.1%) from the 15,824 counted in the 2000 census.