Runnymede has a population of 500 students and has a variety of course offerings ranging from computer technology to co-operative education, from modern languages to music.

Runnymede Collegiate Institute was completed and officially opened on November 11, 1927, although classes had begun on September 6 for 250 students and a staff of 10 teachers led by Principal Bruce W. Clark.

The original Collegiate Gothic building was designed by Charles Wellington Smith and consisted of eight classrooms, three science labs, an auditorium, a library, a gymnasium, a cafeteria and a locker area on three floors.

The building now includes over 30 classrooms, a swimming pool, two gyms, computers labs and a large cafeteria.

Runnymede Collegiate Institute offers a number of different clubs and extracurricular activities.