Trenton Central High School is a four-year comprehensive public high school that serves students in ninth through twelfth grades from Trenton, in Mercer County, New Jersey, United States, operating as part of the Trenton Public Schools. As of the 2014-15 school year, the school had an enrollment of 1,561 students and 149.7 classroom teachers, for a student–teacher ratio of 10.4:1.