The Massapequa Park station is a station on the Babylon Branch of the Long Island Rail Road. It is officially located on New York State Route 27 and Park Boulevard in Massapequa Park, New York, although there are parking lots along Front Street and north of the station. All parking lots require Village of Massapequa Park residential permits.

The Montauk Branch is a rail line owned and operated by the Long Island Rail Road in the U.S. state of New York. The line runs the length of Long Island, 115 miles (185 km) from Long Island City to Montauk. However, in LIRR maps and schedules for public use, the term Montauk Branch refers to the line east of Babylon; service from Jamaica to Babylon is covered by separate Babylon Branch schedules, while the line west of Jamaica is currently unused for passenger service. A select number of Montauk Branch trains operate via the Main Line during peak hours.