Saint Mary's is a Lasallian Catholic College-Preparatory co-educational high school of 630 students in grades 9-12. Our school reflects the rich diversity of the San Francisco Bay Area while embracing a strong, inclusive community spirit. We operate on a trimester system; follow a curriculum that emphasizes the Humanities; and employ progressive, research-supported policies in instruction, assessment, and grading. We are proven change-makers in students' lives. We are sponsored by the Christian Brothers of the San Francisco District and accredited by the Western Association of Schools and Colleges (WASC) and the Western Catholic Education Association (WCEA).