The school now also offers AP (Advanced Placement) classes which allows students to potentially earn college credits.

From its opening in 1932, the administration of the school was in the very capable hands of the Dominican Sisters of the Congregation of Our Lady of the Rosary of Sparkill, New York.

However, in 1986, as the number of Dominican teaching faculty decreased, the administration of the school was turned over to the equally capable hands of the Congregation of The Sisters of Saint Joseph.

Due to increasing student population, Tom Maher and Ray Malafronte were appointed Academic Deans.

On February 14, 2007, St. Edmund Prep took a step towards expanding its building with a groundbreaking ceremony for the new Library & Media Center Wing.

The school today is largely staffed by lay faculty, with some diocesan deacons and priests and a member of the Oratory of St. Philip Neri.