Somerville is a NJ Transit railroad station on the Raritan Valley Line, located south of the downtown center of Somerville, in Somerset County, New Jersey, United States.The historic station building on the north side of the tracks has been restored and now is used by a law firm.Parking lots are located to the south of the station and there is a tunnel there to access the platforms.[10] Starting January 12, 2015, NJ Transit Raritan Valley Line started Midtown Direct service between New York City and Somerville and its surrounding area.The station has two high-level side platforms serving two tracks.