Building 21 Allentown
Public
High Grades 9–12 Virtual
Part of Allentown City SD
265 Lehigh St, Allentown, PA 18102 · (484) 765-4400
Community ratings
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Academic performance
Math proficiency49.5%
State average 37.3%
Reading / language arts24.5%
State average 55%
EDFacts via Urban Institute Education Data Portal (SY2020-21)
At a glance
415Students enrolled
16:1Student–teacher ratio
CitySetting
Regular SchoolSchool type
Enrollment by grade
Grade 9119
Grade 10115
Grade 11101
Grade 1280
Students
Hispanic · 81%337
Black · 9%39
Two or more races · 5%21
White · 3%13
Asian · 1%4
Native Hawaiian/Pacific Islander · 0%1
Counts as reported to NCES; percentages are of students with a reported race/ethnicity.
Enrollment · last 5 years
414’20
446’21
439’22
411’23
415’24
Location
265 Lehigh St Allentown
Neighbor reviews
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School facts from the U.S. Department of Education (NCES), 2024-2025 school year. Academic scores from the EDFacts via Urban Institute Education Data Portal (SY2020-21). Community ratings and reviews reflect neighbor opinions, not an official measure of school quality.