Simon Gratz High School Mastery Charter, formerly Simon Gratz High School is a secondary school in Philadelphia. Its name honors Simon Gratz, a member of the Philadelphia Board of Education.
Serving 1,048 students in grades 7-12, Mastery Cs-gratz 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 8% (which is lower than the Pennsylvania state average of 38%). The percentage of students achieving proficiency in reading/language arts is 20% (which is lower than the Pennsylvania state average of 55%).
The student-teacher ratio of 15:1 is higher than the Pennsylvania state level of 13:1.
Quick Facts (2026)
- School Type: Charter School
- Grades: 7-12
- Enrollment: 1,048 students
- Student-Teacher Ratio: 15:1
- Graduation Rate: 85-89% (Btm 50% in PA)
- Overall Testing Rank: Bottom 50%
- Math Proficiency: 8% (Btm 50%)
- Reading Proficiency: 20% (Btm 50%)
- Science Proficiency: 4% (Btm 50%)
- Source: National Center for Education Statistics (NCES), PA Dept. of Education
Top Rankings
Mastery Cs-gratz Campus ranks among the top 20% of public schools in Pennsylvania for:
Category
Attribute
Percent Eligible For Free Lunch
School Overview
Mastery Cs-gratz Campus's student population of 1,048 students has declined by 21% over five school years.
The teacher population of 70 teachers has declined by 9% over five school years.
School Type
Grades Offered
Grades 7-12
(No virtual instruction)
(No virtual instruction)
Total Students
1,048 students
Total Classroom Teachers
70 teachers
Year Founded
1925
School Calendar
Last Day of School
Wed. Jun 17, 2026
Average Class Size
20 students
School Rankings
Mastery Cs-gratz 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-gratz Campus is 0.27, which is less 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
#2564 out of 2733 schools
(Bottom 50%)
(Bottom 50%)
Math Test Scores (% Proficient)
8%
38%
Reading/Language Arts Test Scores (% Proficient)
20%
55%
Science Test Scores (% Proficient)
4%
57%
Student-Teacher Ratio
15:1
13:1
American Indian
1%
n/a
Asian
n/a
5%
Hispanic
12%
16%
Black
85%
14%
White
n/a
60%
Hawaiian
n/a
n/a
Two or more races
2%
5%
All Ethnic Groups
Graduation Rate
85-89%
87%
Eligible for Free Lunch
99%
59%
Eligible for Reduced Lunch (13-14)
1%
5%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), PA Dept. of Education
Frequently Asked Questions
What is Mastery Cs-gratz Campus's ranking?
Mastery Cs-gratz Campus is ranked #2564 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?
8% of students have achieved math proficiency (compared to the 38% PA state average), while 20% of students have achieved reading proficiency (compared to the 55% PA state average).
What is the graduation rate of Mastery Cs-gratz Campus?
The graduation rate of Mastery Cs-gratz Campus is 85-89%, which is lower than the Pennsylvania state average of 87%.
How many students attend Mastery Cs-gratz Campus?
1,048 students attend Mastery Cs-gratz Campus.
What is the racial composition of the student body?
85% of Mastery Cs-gratz Campus students are Black, 12% of students are Hispanic, 2% of students are Two or more races, and 1% of students are American Indian.
What is the student-teacher ratio of Mastery Cs-gratz Campus?
Mastery Cs-gratz Campus has a student ration of 15:1, which is higher than the Pennsylvania state average of 13:1.
What grades does Mastery Cs-gratz Campus offer ?
Mastery Cs-gratz Campus offers enrollment in grades 7-12 (No virtual instruction).
What school district is Mastery Cs-gratz Campus part of?
Mastery Cs-gratz Campus is part of Mastery CS-Gratz Campus School District.
In what neighborhood is Mastery Cs-gratz Campus located?
Mastery Cs-gratz Campus is located in the North Philadelphia neighborhood of Philadelphia, PA. There are 106 other public schools located in North Philadelphia.
School Reviews
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