Designed by Frank J. Nies, the architect who produced many of DL&W stations now listed state and federal registers of historic places, the 2+1⁄2 story, 3 bay brick building is unusual example of a union station and a representation of early 20th century Prairie style architecture.

CNJ passenger service ran until the 1960s, its final named train being the Harrisburg-Jersey City Queen of the Valley.

NJ Transit, successor to Conrail as operator, discontinued service between Phillipsburg and High Bridge on December 30, 1983.

[17][18][19] The Phillipsburg Union Signal Tower, which controlled movement to the station and was taken out of service by New Jersey Transit in 1983, has also undergone restoration.

[20] An extension of New Jersey Transit Rail Operations Raritan Valley Line from High Bridge station through Glen Gardner, Hampton, Bloomsbury/Bethlehem, NJ and Phillipsburg, in connection with the Norfolk Southern Lehigh Line into Northampton County Pennsylvania, has been considered.