IC Catholic Prep, home of the Knights, is a private high school located in Elmhurst, Illinois. IC Catholic Prep is part of the Roman Catholic Diocese of Joliet and has approximately 350 students and 17 varsity sports. IC Catholic Prep is a dynamic learning community that develops the whole person, inspires critical thinking and independent thought, celebrates the Catholic tradition of community and service on behalf of others, and prepares young women and men to lead confidently and selflessly throughout life.