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D

Building 21

PublicHighGrades 9–12

6501 Limekiln Pike, Philadelphia, PA 19138 · (215) 400-7450 · Part of Philadelphia City School District

Philadelphia’s School Grade D better than 13% of Pennsylvania school districts

Directions
Students
371
Students per teacher
20:1
Setting
City
Grades
9–12
The gist

What stands out about Building 21

  • Its own letter, D: reading and math results near the bottom of Pennsylvania’s public schools
  • Math proficiency 30 pts below the state
  • Larger classes: 20 students per teacher

On the path

Where Philadelphia kids come from and go next. The whole path →

K–8148 schoolsDepends on your address
9–12Building 21You are here

Test scores

2020–21
Math proficiency8%
State average 37.3%

Its own letter, D, places these results among Pennsylvania’s 2,693 public schools with results. Results for small groups the state suppresses are left out. Source: EDFacts via Urban Institute Education Data Portal (SY2020-21).

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 2020–21.

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.

Parents talk

Questions and answers about Building 21 from Philadelphia families.

Other schools in Philadelphia City School District

The district →
Frank Anne Sch
Elementary · Grades PK–5 · Philadelphia
C
1,622 students17:1
Spruance Gilbert Sch
Elementary · Grades PK–8 · Philadelphia
D−
1,270 students16:1
Loesche William H Sch
Elementary · Grades PK–5 · Philadelphia
C
1,263 students15:1
Southwark Sch
Elementary · Grades PK–8 · Philadelphia
D
976 students15:1
Fitzpatrick Aloysius L Sch
Elementary · Grades PK–8 · Philadelphia
C−
906 students17:1
Holme Thomas Sch
Elementary · Grades PK–8 · Philadelphia
C−
850 students14:1

School facts: U.S. Department of Education (NCES), 2024–2025 school year. Test scores: EDFacts via Urban Institute Education Data Portal (SY2020-21). A school’s letter is our own summary of its reading and math results against Pennsylvania’s other public schools; Philadelphia’s School Grade is built from its districts’ results. Map: © OpenStreetMap contributors.