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 (on an FTE basis), for a student–teacher ratio of 10.4:1. There were 1,217 students (78.0% of enrollment) eligible for free lunch and 124 (7.9% of students) eligible for reduced-cost lunch.Trenton Central High School was the focus of a research study aimed at preventing obesity in students, in which student evaluations of the results played a major role in interpretation of the outcomes.Awards, recognition and rankingsThe school was the 333rd-ranked public high school in New Jersey out of 339 schools statewide in New Jersey Monthly magazine's September 2014 cover story on the state's "Top Public High Schools", using a new ranking methodology.Schooldigger.com ranked the school 372nd out of 381 public high schools statewide in its 2011 rankings (a decrease of 14 positions from the 2010 ranking) which were based on the combined percentage of students classified as proficient or above proficient on the mathematics (22.9%) and language arts literacy (60.2%) components of the High School Proficiency Assessment (HSPA).