Founded in 1931 and accredited by the North Central Association of Secondary Schools, Mullen provides a rich secondary education to our students in the tradition of the Brothers of the Christian Schools and their founder, St. John Baptist de La Salle, Patron of Teachers of Youth. Ours is a proud and time-tested tradition, one connected to a legacy of faith, community, and service that extends over three centuries and six continents. Caring for the whole student, raising up leaders and learners for life, and educating in the Holy Presence of God - We Are Mullen!