Mastery Charter School Thomas Campus, formerly the George C. Thomas Junior High School, is a secondary charter school located in the south section of Philadelphia, Pennsylvania. It is run by Mastery Charter Schools.
Serving 1,314 students in grades Kindergarten-12, Mastery Cs -thomas Campus ranks in the bottom 50% of all schools in Pennsylvania for overall test scores (math proficiency is bottom 50%, and reading proficiency is bottom 50%).
The percentage of students achieving proficiency in math is 30% (which is lower than the Pennsylvania state average of 38%). The percentage of students achieving proficiency in reading/language arts is 36% (which is lower than the Pennsylvania state average of 55%).
The student-teacher ratio of 17:1 is higher than the Pennsylvania state level of 13:1.
Minority enrollment is 91% of the student body (majority Hispanic and Black), which is higher than the Pennsylvania state average of 40% (majority Hispanic and Black).
Quick Facts (2026)
- School Type: Charter School
- Grades: Kindergarten-12
- Enrollment: 1,314 students
- Student-Teacher Ratio: 17:1
- Minority Enrollment: 91%
- Graduation Rate: 85-89% (Btm 50% in PA)
- Overall Testing Rank: Bottom 50%
- Math Proficiency: 30% (Btm 50%)
- Reading Proficiency: 36% (Btm 50%)
- Science Proficiency: 35-39% (Btm 50%)
- Source: National Center for Education Statistics (NCES), PA Dept. of Education
Top Rankings
Mastery Cs -thomas Campus ranks among the top 20% of public schools in Pennsylvania for:
Category
Attribute
Diversity
Percent Eligible For Free Lunch
School Overview
Mastery Cs -thomas Campus's student population of 1,314 students has stayed relatively flat over five school years.
The teacher population of 79 teachers has stayed relatively flat over five school years.
School Type
Grades Offered
Grades Kindergarten-12
(No virtual instruction)
(No virtual instruction)
Total Students
1,314 students
Total Classroom Teachers
79 teachers
Colors
Grey, Navy Blue
School Calendar
School Rankings
Mastery Cs -thomas Campus ranks within the bottom 50% of all 2,733 schools in Pennsylvania (based off of combined math and reading proficiency testing data).
The diversity score of Mastery Cs -thomas Campus is 0.73, which is more than the diversity score at state average of 0.60. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#2092 out of 2733 schools
(Bottom 50%)
(Bottom 50%)
Math Test Scores (% Proficient)
30%
38%
Reading/Language Arts Test Scores (% Proficient)
36%
55%
Science Test Scores (% Proficient)
35-39%
57%
Student-Teacher Ratio
17:1
13:1
American Indian
2%
n/a
Asian
16%
5%
Hispanic
40%
16%
Black
29%
14%
White
9%
60%
Hawaiian
n/a
n/a
Two or more races
4%
5%
All Ethnic Groups
Graduation Rate
85-89%
87%
Eligible for Free Lunch
100%
59%
Eligible for Reduced Lunch (13-14)
4%
5%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), PA Dept. of Education
School Notes
- School Mascot: Bulldogs
Frequently Asked Questions
What is Mastery Cs -thomas Campus's ranking?
Mastery Cs -thomas Campus is ranked #2092 out of 2,733 schools, which ranks it among the bottom 50% of public schools in Pennsylvania.
What percent of students have achieved state testing proficiency in math and reading?
30% of students have achieved math proficiency (compared to the 38% PA state average), while 36% of students have achieved reading proficiency (compared to the 55% PA state average).
What is the graduation rate of Mastery Cs -thomas Campus?
The graduation rate of Mastery Cs -thomas Campus is 85-89%, which is lower than the Pennsylvania state average of 87%.
How many students attend Mastery Cs -thomas Campus?
1,314 students attend Mastery Cs -thomas Campus.
What is the racial composition of the student body?
40% of Mastery Cs -thomas Campus students are Hispanic, 29% of students are Black, 16% of students are Asian, 9% of students are White, 4% of students are Two or more races, and 2% of students are American Indian.
What is the student-teacher ratio of Mastery Cs -thomas Campus?
Mastery Cs -thomas Campus has a student ration of 17:1, which is higher than the Pennsylvania state average of 13:1.
What grades does Mastery Cs -thomas Campus offer ?
Mastery Cs -thomas Campus offers enrollment in grades Kindergarten-12 (No virtual instruction).
What school district is Mastery Cs -thomas Campus part of?
Mastery Cs -thomas Campus is part of Mastery CS-Thomas Campus School District.
In what neighborhood is Mastery Cs -thomas Campus located?
Mastery Cs -thomas Campus is located in the South Philadelphia East neighborhood of Philadelphia, PA. There are 2 other public schools located in South Philadelphia East.
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