In the tradition of St. John Baptist de La Salle and the Brothers of the Christian Schools, Mullen High School is a Catholic college preparatory high school whose graduates embrace God's gift of learning, devote their lives to seeking ceaselessly for His learning, and commit themselves to using His learning in the service of others. Mullen's hallmarks are its exemplary teaching, its community of faith, its scholastic rigor, and its care and vigilance for each student.