C+
Building 21 Allentown
PublicHighGrades 9–12
265 Lehigh St, Allentown, PA 18102 · (484) 765-4400 · Part of Allentown City School District
Students
415
Students per teacher
16:1
Setting
City
Grades
9–12
What stands out about Building 21 Allentown
- Math proficiency 12 pts above the state
- Reading / language arts 31 pts below the state
Test scores
EDFacts via Urban Institute Education Data Portal (SY2020-21) · 2020–21Math proficiency49.5%
State average 37.3%
Reading / language arts24.5%
State average 55%
Location
Directions ↗
265 Lehigh St, Allentown
Students
Enrollment by grade
Grade 9119
Grade 10115
Grade 11101
Grade 1280
Enrollment over time
414’20
446’21
439’22
411’23
415’24
About steady.
Who goes here
Hispanic 81%Black 9%Two or more races 5%White 3%Asian <1%Native Hawaiian/Pacific Islander <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 Allentown.
Other schools in Allentown 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.