These schools include: Central Catholic Marianist High School, Incarnate Word High School, Saint Mary's Hall, The Atonement Academy, Antonian College Preparatory High School, San Antonio Academy, Holy Cross High School, Providence High School, The Carver Academy, Keystone School, TMI — The Episcopal School of Texas, St. Anthony Catholic High School, Lutheran High School of San Antonio, and Harmony Science Academy.
В городе функционирует более 30 частных и чартерных школ, среди которых Central Catholic Marianist High School, Incarnate Word High School, Saint Mary’s Hall, The Atonement Academy, Antonian College Preparatory High School, San Antonio Academy, Holy Cross High School, Providence High School, The Carver Academy, Keystone School, TMI — The Episcopal School of Texas, St. Anthony Catholic High School, Lutheran High School of San Antonio и Harmony Science Academy.