The Secaucus Junction train station serves most of NJ Transit's train lines. Specifically:
|•||Montclair Branch (BNTNM)|
|•||M&E - Morristown Line (MNE)|
|•||Northeast Corridor Line (NEC)|
|•||North Jersey Coast Line (NJCL)|
|•||Main & Bergen Co Line (MNBN)|
|•||Pascack Valley Line (PASC)|
The first four can bring you into New York Penn Station in as quickly as 15 minutes.
For more information, go to http://www.njtransit.com
Although not as close as Secaucus Junction, Secaucus residents can also easily access the PATH system via the Hoboken station (about 20 - 25 minutes away). From there, one can reach lower to midtown Manhattan, shopping at Newport mall, Journal Square, and Newark Penn Station.
For more information, go to http://www.panynj.gov