St. Joseph School is accredited by the Western Catholic Educational Association (WCEA) and the Western Association of Schools and Colleges (WASC).  Areas assessed include: the school’s Catholic identity, defining the school’s purpose, organization for student learning to support high achievement of all students, data analysis and action, SLEs and standards-based curriculum, instructional methodology, support for student spiritual, personal, and academic growth, and resource management and development.

St. Joseph School has a six-year term of accreditation.