Cantwell-Sacred Heart of Mary, a College Preparatory School owned and operated by the Archdiocese of Los Angeles, provides an educational environment which promotes Gospel values, celebrates diversity, develops self-worth and respect for others, encourages personal responsibility, and challenges students to share their gifts in building a just and peaceful society.

Every aspect of the school program is based on the foundation of To Teach As Jesus Did, bringing Christ and His message into the educational experience, collaborating with parents as the primary educators to develop “young men and women of character.”

The school provides an atmosphere of learning which develops an awareness of self-worth, respect and responsibility toward others, thereby fostering an appreciation of cultural and ethnic diversity. All students are challenged to utilize their unique gifts to promote the common good and the glory of God.

Cantwell-Sacred Heart of Mary High School offers curricular and co-curricular activities providing all students with opportunities to pursue their interests in a supportive learning environment. The curriculum prepares students to accept future educational and career challenges. The co-curricular program encourages students to develop mental and physical skills, a healthy competitive spirit, teamwork, and self-discipline.

Cantwell-Sacred Heart of Mary High School practices its philosophy in the realm of the acclaimed school's Integral Student Outcomes (ISO's, outlined below.)