New York City's commuter rail system is the most extensive in the United States, with about 250 stations and 20 rail lines serving more than 150 million commuters annually in the tri-state region. Commuter rail service from the suburbs is operated by two agencies. The MTA operates the Long Island Rail Road on Long Island and the Metro-North Railroad in the Hudson Valley and Connecticut. New Jersey Transit operates the rail network west of the Hudson River. These rail systems converge at the two busiest train stations in the United States, Penn Station and Grand Central Terminal, both in Manhattan.