The site of the new Phillipsburg High School, which began construction in January 2014, is in Lopatcong Township. The three-story, building, with more than double the floor space of the existing high school and a capacity to accommodate more than 2,100 students, was completed for the 2016–17 school year and was dedicated in September 2016 at ceremonies attended by Governor of New Jersey Chris Christie. Phillipsburg High School's enrollment had been in excess of the school's capacity. To compensate for this, the Phillipsburg School District has purchased or leased 31 trailers.