The Hanover Park Regional High School District is comprised of two high schools. Hanover Park High School is located in East Hanover, receives students from East Hanover and Florham Park, and has an enrollment of 831 students. Whippany Park High School is located in Hanover Township, receives students from Hanover Township and has an enrollment of 656 students. The district enjoys a tradition of excellence with an ongoing commitment to academics, the arts, athletics and community service.

Both schools continue to rank as one of the Top 100 High Schools in the New Jersey Monthly magazine. Combined, the schools administered 305 Advanced Placement exams with an average of 84% scoring a 3 or higher. Many district students achieved honors status from the College Board Advanced Placement Scholar Awards recognition program.