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 2020–21 school year, the school had an enrollment of 1,861 students and 143.7 classroom teachers (on an FTE basis), for a student–teacher ratio of 13.0:1. There were 836 students (44.9% of enrollment) eligible for free lunch and 19 (1.0% of students) eligible for reduced-cost lunch.