The top reported proficiency rate is 47% in English language arts. The lowest is 39% in Math.
Original Research by School Decision on Mastery Cs -thomas Campus
Mastery Charter School Thomas Campus is a large K-12 charter serving a diverse student body in South Philadelphia, on Johnston Street in the 19148 ZIP code. It enrols across all grade levels, with middle and high school grades (seven through twelve) at slightly higher capacity than elementary.
The school's student population is economically disadvantaged: virtually all students qualify for free or reduced-price lunch. The student body is majority Hispanic, with a substantial share identifying as Black, and smaller Asian and white populations, plus a small count of students identifying as American Indian or Alaska Native. No English learner or special education enrollment counts were reported in the available data, so parents may want to ask the school directly about how those populations are served.
In mathematics, the school's most recent state assessment results show that about four in ten students in grades 3 through 8 scored at proficiency or above. In English language arts, the rate is closer to one in two. Both reflect below-state-average performance, though the school is the sole entity in its comparison universe, so direct positioning against district peers is not available. For a school serving a student population this economically stretched, a parent may want to explore with the school what targeted academic supports exist, what recent trends look like, and what resources are dedicated to catching students who are below grade level.
The school has recently secured a five-year charter renewal with no conditions, a designation earned by only one other charter in Philadelphia out of a broader renewal cohort. That signals accountability review boards found the school meeting its obligations through at least 2030. More materially for families choosing a high school pathway, Thomas Campus has shifted toward a dual college-and-career model. The school now offers medical assistant certification through a JEVS partnership, a City of Philadelphia municipal employment pathway, and dual enrollment with Community College of Philadelphia. These routes let students earn credentials and college credit while still in high school, which opens alternatives to a purely academic four-year college track.
Staffing stability was historically a parent concern. The Mastery network has recently raised starting teacher salaries network-wide as part of a five-year strategic plan, which may affect teacher retention going forward.
The school sits in Philadelphia, a large dense city with extensive public transit (SEPTA serves five counties), abundant parks and libraries, and walkable mixed-use neighborhoods. The school's ZIP code is in South Philadelphia, a predominantly residential rowhouse area. Housing values in the ZIP are below the Pennsylvania state median, and rents have risen modestly. The broader Philadelphia economy is anchored by healthcare, higher education, life sciences, and financial services, with major employers including the University of Pennsylvania, Children's Hospital, Comcast, and others.
No graduation rate, discipline data, or chronic absenteeism figures were available in the data provided.
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