As both a private middle school and private high school, TMI Episcopal educates students in grades 6-12. The admission process is designed to allow multiple opportunities for discovering each student's ability and willingness to support our mission. Welcome to TMI's Boarding Program. Located in San Antonio, we are a boarding school with day students and offer both 5-day and 7-day boarding options, which emphasize academic excellence and international cooperation. Call us 210-698-7171 for more information San Antonio boarding schools.