Hightstown High School is a four-year comprehensive public high school that serves students in ninth through twelfth grades comprised of three communities in Mercer County and Monmouth County, New Jersey, United States, operating as part of the East Windsor Regional School District. Students come from East Windsor and Hightstown, both in Mercer County. Students from Roosevelt (a community in Monmouth County) attend the district's high school as part of a sending/receiving relationship with the Roosevelt Public School District.