The Hudson Bergen light rail line currently spans 33.2 km throughout Hudson County. The single light railway serves 23 stations, one of which is in subway. The first section opened in April 2000, with full operations kicking in in 2004. Trains run mostly on exclusive right of way, with some street running in Jersey City and a subway station at Bergenline Avenue in Union City.
A one mile extension in Bayonne is opened in late 2011 thanks to Federal stimulus funds. While plans exist to extend the line into Bergen County, the "Bergen" part of the line's name is currently a lie. However, an 11 mile extension to Tenafly will bring truth to the line's name if construction begins as scheduled in 2011. Other extensions discussed include a line to the Meadowlands, one through Jersey City along Route 440, a Hackensack line, and Staten Island.There has also been some discussion of hooking up the system to Newark's City Subway, and through the new Hudson River Tunnel. Both of these schemes have about as much chance of being built as the Staten Island Bayonne Bridge light rail extension.