Mt. San Antonio College is among the largest of California's 112 community colleges. Located in the city of Walnut, Mt. SAC serves nearly 20 communities and a million residents in the bustling San Gabriel Valley. Since the College opened its doors in 1946, Mt. SAC has provided quality and affordable educational opportunities to more than a million students of all ages. Today, the College offers more than 200 degree and certificate programs and has earned statewide and national distinction in a number of disciplines. Our alumni have distinguished themselves in both the private and public sectors.