The San Mateo Adult School (SMAS) is part of the San Mateo Union High School District (SMUHSD), based in San Mateo, California, and serves approximately 8,200 students in six cities—San Bruno, Millbrae, Burlingame, Hillsborough, San Mateo, and Foster City. The Adult School serves approximately 6,000 students annually, and the school’s main campus is located at 789 E. Poplar Avenue in San Mateo. The school began operations in 1914 as the San Mateo Evening School, offering high school subjects and, eventually, classes in “Americanization.”  Today, the San Mateo Adult School is one of eight schools in the San Mateo Union High School District, which includes six comprehensive and one continuation high school.

The Adult School’s main campus at 789 East Poplar in San Mateo was established in the early 1990s and houses the majority of the ESL, CTE, Adult Basic Education, Adult Secondary classes, and a Pearson View GED Test Center. There are ten off-campus locations throughout the service area, including senior centers, churches, recreation centers, convalescent and assisted living facilities, and elementary schools. These off-site facilities are an important part of the school’s effort to make classes more accessible to the community, particularly those students for whom transportation and/or childcare is a factor.