This is a list of schools in the Roman Catholic Archdiocese of Los Angeles. The Archdiocese spans three counties: Los Angeles, Ventura and Santa Barbara. Not all the schools listed are operated by the Diocese. Some are operated by religious institutes such as the Jesuits or the Franciscans. There are five universities or colleges, and 51 high schools within the archdiocese. the archdiocese has the country's largest Catholic school network. Universities and colleges Los Angeles County Loyola Marymount University, Westchester, Los Angeles Mount St. Mary's College, Brentwood and North University Park, Los Angeles Ventura County St. John's Seminary, Camarillo Thomas Aquinas College, Santa Paula Schools in operation High schools Los Angeles County Los Angeles Bishop Alemany High School, Mission Hills Bishop Conaty-Our Lady of Loretto High School (Girls), Harvard Heights Bishop Mora Salesian High School (Boys), Boyle Heights Cathedral High School (Boys), Elysian Park Chaminade College Preparatory School, West Hills Crespi Carmelite High School (Boys), Encino Louisville High School (Girls), Woodland Hills Loyola High School (Boys), Harvard Heights Immaculate Heart High School (Girls), Los Feliz Mary Star of the Sea High School, San Pedro Marymount High School (Girls), Bel-Air Notre Dame Academy (Girls), Rancho Park Notre Dame High School, Sherman Oaks Sacred Heart High School (Girls), Lincoln Heights St. Bernard High School, Playa del Rey St. Genevieve High School, Panorama City Verbum Dei Jesuit High School (Boys), Watts Other cities Ramona Convent Secondary School (Girls), Alhambra St. John Bosco High School (Boys), Bellflower Providence High School, Burbank St. Pius X - St. Matthias Academy, Downey Junípero Serra High School, Gardena Holy Family High School (Girls), Glendale St. Mary's Academy (Girls), Inglewood Flintridge Sacred Heart Academy (Girls), La Cañada Flintridge St. Francis High School (Boys), La Cañada Flintridge Bishop Amat Memorial High School, La Puente Damien High School (Boys), La Verne, previously Pomona Catholic Girls High School St. Joseph High School (Girls), Lakewood Paraclete High School, Lancaster St. Anthony High School, Long Beach Cantwell-Sacred Heart of Mary High School, Montebello La Salle High School, Pasadena Mayfield Senior School of the Holy Child Jesus (Girls), Pasadena St. Monica Academy, Montrose Pomona Catholic High School (Girls), Pomona previously Holy Name Academy Don Bosco Technical Institute (Boys), Rosemead San Gabriel Mission High School (Girls), San Gabriel St. Paul High School, Santa Fe Springs St. Monica High School, Santa Monica Alverno Heights Academy (Girls), Sierra Madre Bishop Montgomery High School, Torrance Santa Barbara County Bishop