Phillipsburg is a town in Warren County, New Jersey, in the United States. It was incorporated as a town by an act of the New Jersey Legislature on March 8, 1861, from portions of Phillipsburg Township (now Lopatcong Township). The town was named for William Phillips, an early settler of the area.
Phillipsburg had historically benefited from being a major transportation hub, situated at the confluence of the Delaware and Lehigh rivers. Phillipsburg served as the western terminus of the Morris Canal for approximately 100 years from the 1820s to 1920s, which connected the city by water to the industrial and consumer centers of the New York City area, with connections westward via the Lehigh Canal and Delaware Canal across the Delaware.