Ewing High School is a four-year comprehensive public high school that serves students in ninth through twelfth grades from Ewing Township, in Mercer County, New Jersey, United States, operating as the lone secondary school of the Ewing Public Schools. As of the 2020–21 school year, the school had an enrollment of 1,080 students and 93.0 classroom teachers (on an FTE basis), for a student–teacher ratio of 11.6:1. There were 380 students (35.2% of enrollment) eligible for free lunch and 97 (9.0% of students) eligible for reduced-cost lunch.