Bishop Heelan is a private, Catholic high school that is part of a school system in Sioux City, Iowa. It is located in the Roman Catholic Diocese of Sioux City. The system includes three PK-8 elementary schools: Holy Cross School, Mater Dei School and Sacred Heart School and Bishop Heelan High School. After Sioux City's Catholic schools combined to become a system in 1998-99, the system took its name from Bishop Heelan High School which is the secondary school of choice after students graduate from elementary school.