Mastery CS-Thomas Campus

Located at 927 Johnston Street in South Philadelphia, Mastery CS-Thomas Campus operates as an open, single-facility independent public charter district embedded within the large city landscape of the Philadelphia metropolitan region. The district offers a complete and continuous K–12 educational pathway, welcoming children from Kindergarten through 12th grade within its single operational school facility. Serving a total enrollment of 1,314 students across its elementary, middle, and high school grades, the campus provides families with a unified, cohesive learning community tailored to long-term academic and personal development.

The district boasts a richly diverse student body, comprising 526 Hispanic, 375 Black, 212 Asian, 116 White, 55 multiracial, and 30 American Indian students. To effectively guide and nurture this learner community, Mastery CS-Thomas Campus relies on a substantial professional team totaling over 251 full-time equivalent staff members. This dedicated team includes approximately 159 full-time equivalent teachers, 9 instructional aides, and nearly 84 support personnel, reflecting a robust student-to-staff framework designed to provide individualized attention, comprehensive academic instruction, and holistic student support.