Welcome to San Marcos Academy! SMA is a fully accredited coeducational Christian college preparatory school for grades 6-12 located in the beautiful Texas hill country. We welcome boarding students from around the world, across the United States, and all over Texas, providing a nurturing structured environment that fosters success. We also enroll day students from 14 local communities. San Marcos Academy has maintained a tradition of excellence for 109 years. Visit our website to learn more about the Academy or to request information about our school.