run by a religious order or independent Board of Trustees) are located in the diocese. High schools Diocesan Mater Dei High School, Santa Ana, California Rosary High School, Fullerton, California Santa Margarita Catholic High School, Rancho Santa Margarita, California Independent JSerra Catholic High School, San Juan Capistrano, California Servite High School, Anaheim Closed Schools Cornelia Connelly High School, Anaheim, California St. Michael's Preparatory School, Silverado, California See also Catholic Church by country Hierarchy of the Catholic Church List of the Catholic dioceses of the United States References External links Orange Catholic Foundation, endowment fund Religion in Orange County, California Orange Orange Organizations based in Orange County, California Orange Christian organizations established in 1976 1976 establishments in California