Belmont High School serves approximately 1,000 students in grades 9-12, and includes a faculty of 80 teachers.

The current High School opened in 1971 with an efficient two-story layout of curriculum, administration, and common areas. Set back from the street, the 250,000 sq. ft. school is sited beyond a picturesque pond encircled by a walking path. The facility includes a large auditorium, theatre, three art rooms, photography darkroom, music wing, foreign language lab, science labs, computer labs, and special education classrooms as well as fully networked, technology-equipped classrooms, and a very large cafeteria.

The Instructional Media Center (IMC) is housed in a comfortable and attractive space and includes a main reading room, mezzanine study area, computer lab, and media center.

The extensive High School recreational facilities include a gymnasium and field house with a swimming pool and fitness center; an ice rink; several athletic fields; tennis courts; and a new state-of-the-art, all-weather track and multi-purpose field.

Nursing services are also available for its students and health screening is conducted as appropriate at all grade levels. In addition, health program is a part of the curriculum.