D−
Building 21
PublicHighGrades 9–12
6501 Limekiln Pike, Philadelphia, PA 19138 · (215) 400-7450 · Part of Philadelphia City School District
Students
371
Students per teacher
20:1
Setting
City
Grades
9–12
What stands out about Building 21
- School Grade D−: test results are near the bottom of the state
- Math proficiency 30 pts below the state
- Reading / language arts 58 pts below the state
- Larger classes: 20:1 students per teacher
Test scores
EDFacts via Urban Institute Education Data Portal (SY2020-21) · 2020–21Math proficiency7.5%
State average 37.3%
Reading / language arts-3%
State average 55%
Location
Directions ↗
6501 Limekiln Pike, Philadelphia
Students
Enrollment by grade
Grade 9111
Grade 10108
Grade 1178
Grade 1274
Enrollment over time
397’20
399’21
388’22
382’23
371’24
Down 6.5% since 2020.
Who goes here
Black 91%Hispanic 5%Two or more races 2%Asian <1%White <1%
As reported to NCES, share of students with a reported race or ethnicity.
What neighbors say
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Parents talk
Conversations in Town Square that mention Building 21.
Other schools in Philadelphia City School District
School facts: U.S. Department of Education (NCES), 2024-2025 school year. Scores: EDFacts via Urban Institute Education Data Portal (SY2020-21). The School Grade is our own summary of state test results. Neighbor ratings are opinions, not an official measure of school quality.