San Marcos operates on a 4 x 4 Block Schedule, with four terms per year. Each class period is 86 minutes in length (Thursdays are late start days with 78 minute periods.) A full schedule is three classes per term. Final grades and credits are given at the end of each term. In addition to completing a minimum of 220 units/credits for graduation (Class of 2016), all students are required to complete 60 hours of community service.
- Academic Departments: 11
- Honors courses: 7
- Advanced Placement courses: 17
- Regional Occupational courses (ROP): 7
- Santa Barbara City College Dual Enrollment courses: 14
- Academies–Health Academy; AAPLE (Accelerated Academic Program for Leadership and Enrichment); Entrepreneurship Academy; Culinary Program