Belmont High School serves approximately 1,200 students in grades 9 through 12, and includes a faculty of 97 teachers. The current Belmont High School opened in 1971 with an efficient, two-story layout of classrooms, administration offices, 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, a writing lab, and special education classrooms, as well as fully networked, technologye quipped classrooms, and a large cafeteria.

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.

For graduation, students must earn at least 100 credits and fulfill minimum course distribution requirements. Students are required to take six courses each year.

Courses are offered in English; fine and performing arts (visual arts, music, theatre); foreign languages (Mandarin Chinese, French, Latin, Spanish); mathematics; physical education; science, health, technology and engineering, and social studies.

Most major courses are taught on two levels of achievement: honors and college preparatory. Advanced placement courses include English, studio art, French, Latin, Spanish, calculus, computer science, physics, chemistry, biology, psychology and neuro-anatomy, environmental science, American history, European history, and economics. Close to one-third of Belmont High School students are enrolled in advanced placement courses.

In 2007, 99% of the senior class at Belmont High School took the SAT. The combined average score was 1743 which is 232 points higher than the national average.

Approximately 95% of Belmont High School graduates continue on to higher education.