Founded in 1956, Monsignor McClancy Memorial High School is a member of the Middle States Association of Secondary Schools. It offers honors courses in theology and religious values. The school also offers college extension programs in English, math, business and art in collaboration with St. John's University and Adelphi University. In addition, Monsignor McClancy Memorial High School offers extracurricular programs in physical education, computer science and foreign languages. The school also provides guidance counseling services to students. Monsignor McClancy Memorial High School organizes a variety of recreational events and activities, such as parent-teacher nights, fashion shows and Pampered Chef parties.