school profile

Building 21

Located in Philadelphia, PA. Serving grades 09 through 12.

NCES ID
421899007534
District
Philadelphia City SD
Compare
Enrollment
382
Grades
09 through 12
Year
—
Measures
0
Suppressed
0
This school enrolls 382 students.

Academic Performance

Percent of students meeting or exceeding state standards, by grade.

No academic proficiency data available.

Community Context

School

Enrollment382
Grades served09–12

District

Philadelphia City SD
Per-pupil expenditure$18,329
Federal revenue share13.6%
State revenue share45.0%
Local revenue share41.3%
Chronic absenteeism rate37.2%

County

Median household income$60,698
Adults with a bachelor's degree or higher34.6%
Median home value$232,400
Unemployment rate4.5%
County figures reflect the surrounding county; district figures reflect the parent school district; school figures reflect this school. All values are officially reported public data.

School Context

Officially reported figures, 2024-25.

Enrollment
382
Grades
09–12
Student body
Hispanic 7%Black 90%Asian 1%Two+ 1%

Detailed Reported Data

All reported measures, by topic.

Academic opportunity & advanced coursework
Advanced Mathematics
Advanced mathematics classes offered2
Advanced mathematics enrollment21
Black 21 | Male 12 · Female 9
Advanced Placement (AP)
AP enrollment, offeredNo
Algebra I
Algebra I classes offered6
Algebra I enrollment, grades 11-120
Algebra I enrollment, grades 9-10110
Hispanic 9 · Asian 2 · Black 97 · Two+ 2 | Male 59 · Female 51 | English learners 5 | Students w/ disabilities (IDEA) 17
Students who passed Algebra I, grades 9-10105
Hispanic 9 · Asian 2 · Black 92 · Two+ 2 | Male 55 · Female 50 | English learners 5 | Students w/ disabilities (IDEA) 17
Algebra II
Algebra II classes offered5
Algebra II enrollment103
Hispanic 9 · Asian 1 · Black 89 · Two+ 4 | Male 57 · Female 46 | English learners 5 | Students w/ disabilities (IDEA) 17
Geometry
Geometry classes offered5
Geometry enrollment114
Hispanic 5 · Black 103 · White 3 · Two+ 3 | Male 59 · Female 55 | English learners 6 | Students w/ disabilities (IDEA) 13
Calculus
Calculus classes offered0
Biology
Biology classes offered7
Biology enrollment120
Hispanic 13 · Asian 1 · Black 102 · White 1 · Two+ 3 | Male 59 · Female 61 | English learners 8 | Students w/ disabilities (IDEA) 21
Chemistry
Chemistry classes offered1
Chemistry enrollment21
Hispanic 2 · Black 18 · Two+ 1 | Male 7 · Female 14 | English learners 1
Physics
Physics classes offered5
Physics enrollment104
Hispanic 8 · Asian 2 · Black 92 · Two+ 2 | Male 58 · Female 46 | English learners 3 | Students w/ disabilities (IDEA) 16
Computer Science
Computer Science classes offered0
Data Science
Data Science enrollment0
Dual Enrollment
Dual enrollment41
Hispanic 2 · Black 39 | Male 14 · Female 27 | English learners 1 | Students w/ disabilities (IDEA) 1
International Baccalaureate (IB)
IB enrollment, offeredNo
Gifted and Talented Programs
Gifted and talented program, offeredYes
Gifted/talented enrollment1
Black 1 | Female 1
SAT and ACT Participation
Students participating in SAT or ACT50
Hispanic 1 · Black 47 · White 1 · Two+ 1 | Male 28 · Female 22 | English learners 2 | Students w/ disabilities (IDEA) 2
Students & school setting
Enrollment
English learner enrollment
Male 7 · Female 8
English learner program enrollment
Male 7 · Female 6
Enrollment
Male 204 · Female 196
Students with disabilities (IDEA) enrollment
Male 36 · Female 24
Students with disabilities (Section 504) enrollment
Male 2
Grade Retention
Students retained, grade 1034
Hispanic 2 · Black 32 | Male 20 · Female 14 | English learners 1 | Students w/ disabilities (IDEA) 11 · Students w/ disabilities (504) 1
Students retained, grade 10, offeredYes
Students retained, grade 1123
Black 22 · Two+ 1 | Male 9 · Female 14 | English learners 1 | Students w/ disabilities (IDEA) 3
Students retained, grade 11, offeredYes
Students retained, grade 1215
Hispanic 1 · Black 13 · Two+ 1 | Male 8 · Female 7 | English learners 1
Students retained, grade 12, offeredYes
Students retained, grade 98
Hispanic 1 · Black 7 | Male 4 · Female 4
Students retained, grade 9, offeredYes
Single-Sex Classes
Single-sex classes, offeredNo
Interscholastic Athletics
Interscholastic athletics, offeredNo
Internet Access and Devices
Internet access, Wi-Fi hotspots providedYes
Internet access, Wi-Fi-enabled devices provided400
Internet access, devices provided to studentsYes
Internet access, school-issued devicesYes
School Support and Staffing
School counselors (FTE)2
Security staff (FTE), security guards0
Security staff (FTE), sworn law enforcement officers0
Support services staff (FTE), nurses1
Support services staff (FTE), psychologists0
Support services staff (FTE), social workers0
Teachers (FTE), certified teachers21
Teachers (FTE), teachers not certified3
Teachers (FTE), total24
School Characteristics
Grade offered, grade 10Yes
Grade offered, grade 11Yes
Grade offered, grade 12Yes
Grade offered, grade 9Yes
Magnet program detailYes
School type, magnet schoolYes
School climate & discipline
Suspensions
Days missed due to out-of-school suspension181
Hispanic 0 · Am. Indian / AK Native 0 · Asian 0 · Hawaiian / Pac. Isl. 0 · Black 181 · White 0 · Two+ 0 | Male 45 · Female 136 | English learners 0 | Students w/ disabilities (IDEA) 8 · Students w/ disabilities (504) 0
In-school suspensions (students with disabilities (IDEA))0
Hispanic 0 · Am. Indian / AK Native 0 · Asian 0 · Hawaiian / Pac. Isl. 0 · Black 0 · White 0 · Two+ 0 | Male 0 · Female 0
In-school suspensions (students with disabilities)
English learners 0 | Students w/ disabilities (504) 0
In-school suspensions (students without disabilities)0
Hispanic 0 · Am. Indian / AK Native 0 · Asian 0 · Hawaiian / Pac. Isl. 0 · Black 0 · White 0 · Two+ 0 | Male 0 · Female 0 | English learners 0
Multiple out-of-school suspensions (students with disabilities (IDEA))1
Hispanic 0 · Am. Indian / AK Native 0 · Asian 0 · Hawaiian / Pac. Isl. 0 · Black 1 · White 0 · Two+ 0 | Male 1 · Female 0
Multiple out-of-school suspensions (students with disabilities)
English learners 0 | Students w/ disabilities (504) 0
Multiple out-of-school suspensions (students without disabilities)6
Hispanic 0 · Am. Indian / AK Native 0 · Asian 0 · Hawaiian / Pac. Isl. 0 · Black 6 · White 0 · Two+ 0 | Male 1 · Female 5 | English learners 0
Out-of-school suspension instances
Sch Oosinstances Wodis 30 · Sch Oosinstances Idea 3 · Sch Oosinstances 504 0
Single out-of-school suspension (students with disabilities (IDEA))1
Hispanic 0 · Am. Indian / AK Native 0 · Asian 0 · Hawaiian / Pac. Isl. 0 · Black 1 · White 0 · Two+ 0 | Male 1 · Female 0
Single out-of-school suspension (students with disabilities)
English learners 0 | Students w/ disabilities (504) 0
Single out-of-school suspension (students without disabilities)15
Hispanic 0 · Am. Indian / AK Native 0 · Asian 0 · Hawaiian / Pac. Isl. 0 · Black 15 · White 0 · Two+ 0 | Male 5 · Female 10 | English learners 0
Expulsions
Expulsions under zero-tolerance policies (students with disabilities (IDEA))0
Hispanic 0 · Am. Indian / AK Native 0 · Asian 0 · Hawaiian / Pac. Isl. 0 · Black 0 · White 0 · Two+ 0 | Male 0 · Female 0
Expulsions under zero-tolerance policies (students with disabilities)
English learners 0 | Students w/ disabilities (504) 0
Expulsions under zero-tolerance policies (students without disabilities)0
Hispanic 0 · Am. Indian / AK Native 0 · Asian 0 · Hawaiian / Pac. Isl. 0 · Black 0 · White 0 · Two+ 0 | Male 0 · Female 0 | English learners 0
Expulsions with educational services (students with disabilities (IDEA))0
Hispanic 0 · Am. Indian / AK Native 0 · Asian 0 · Hawaiian / Pac. Isl. 0 · Black 0 · White 0 · Two+ 0 | Male 0 · Female 0
Expulsions with educational services (students with disabilities)
English learners 0 | Students w/ disabilities (504) 0
Expulsions with educational services (students without disabilities)0
Hispanic 0 · Am. Indian / AK Native 0 · Asian 0 · Hawaiian / Pac. Isl. 0 · Black 0 · White 0 · Two+ 0 | Male 0 · Female 0 | English learners 0
Expulsions without educational services (students with disabilities (IDEA))0
Hispanic 0 · Am. Indian / AK Native 0 · Asian 0 · Hawaiian / Pac. Isl. 0 · Black 0 · White 0 · Two+ 0 | Male 0 · Female 0
Expulsions without educational services (students with disabilities)
English learners 0 | Students w/ disabilities (504) 0
Expulsions without educational services (students without disabilities)0
Hispanic 0 · Am. Indian / AK Native 0 · Asian 0 · Hawaiian / Pac. Isl. 0 · Black 0 · White 0 · Two+ 0 | Male 0 · Female 0 | English learners 0
Restraint and Seclusion
Instances of restraint or seclusion, mechanical restraint
Sch Rsinstances Mech Wodis 3 · Sch Rsinstances Mech Idea 0 · Sch Rsinstances Mech 504 0
Instances of restraint or seclusion, physical restraint
Sch Rsinstances Phys Wodis 1 · Sch Rsinstances Phys Idea 0 · Sch Rsinstances Phys 504 0
Instances of restraint or seclusion, seclusion
Sch Rsinstances Secl Wodis 0 · Sch Rsinstances Secl Idea 0 · Sch Rsinstances Secl 504 0
Students subjected to restraint or seclusion, mechanical restraint (students without IDEA disabilities)1
Hispanic 0 · Am. Indian / AK Native 0 · Asian 0 · Hawaiian / Pac. Isl. 0 · Black 1 · White 0 · Two+ 0 | Male 0 · Female 1 | English learners 0
Students subjected to restraint or seclusion, physical restraint (students without IDEA disabilities)1
Hispanic 0 · Am. Indian / AK Native 0 · Asian 0 · Hawaiian / Pac. Isl. 0 · Black 1 · White 0 · Two+ 0 | Male 1 · Female 0 | English learners 0
Referrals to Law Enforcement and School-Related Arrests
Referrals to law enforcement (students with disabilities (IDEA))0
Hispanic 0 · Am. Indian / AK Native 0 · Asian 0 · Hawaiian / Pac. Isl. 0 · Black 0 · White 0 · Two+ 0 | Male 0 · Female 0
Referrals to law enforcement (students with disabilities)
English learners 0 | Students w/ disabilities (504) 0
Referrals to law enforcement (students without disabilities)18
Hispanic 0 · Am. Indian / AK Native 0 · Asian 0 · Hawaiian / Pac. Isl. 0 · Black 18 · White 0 · Two+ 0 | Male 2 · Female 16 | English learners 0
School-related arrests (students with disabilities (IDEA))0
Hispanic 0 · Am. Indian / AK Native 0 · Asian 0 · Hawaiian / Pac. Isl. 0 · Black 0 · White 0 · Two+ 0 | Male 0 · Female 0
School-related arrests (students with disabilities)
English learners 0 | Students w/ disabilities (504) 0
School-related arrests (students without disabilities)0
Hispanic 0 · Am. Indian / AK Native 0 · Asian 0 · Hawaiian / Pac. Isl. 0 · Black 0 · White 0 · Two+ 0 | Male 0 · Female 0 | English learners 0
Allegations of Harassment or Bullying
Allegations of harassment or bullying, on the basis of religion
Sch Hballegations Rel Atag 0 · Sch Hballegations Rel Budd 0 · Sch Hballegations Rel Cath 0 · Sch Hballegations Rel East 0 · Sch Hballegations Rel Hind 0 · Sch Hballegations Rel Islm 0 · Sch Hballegations Rel Jwit 0 · Sch Hballegations Rel Jwsh 0 · Sch Hballegations Rel Morm 0 · Sch Hballegations Rel Multi 0 · Sch Hballegations Rel Othchrn 0 · Sch Hballegations Rel Othrel 0 · Sch Hballegations Rel Prot 0 · Sch Hballegations Rel Sikh 0
Students disciplined for harassment or bullying, on the basis of disability0
Hispanic 0 · Am. Indian / AK Native 0 · Asian 0 · Hawaiian / Pac. Isl. 0 · Black 0 · White 0 · Two+ 0 | Male 0 · Female 0 | English learners 0 | Students w/ disabilities (IDEA) 0 · Students w/ disabilities (504) 0
Students disciplined for harassment or bullying, on the basis of race, color, or national origin0
Hispanic 0 · Am. Indian / AK Native 0 · Asian 0 · Hawaiian / Pac. Isl. 0 · Black 0 · White 0 · Two+ 0 | Male 0 · Female 0 | English learners 0 | Students w/ disabilities (IDEA) 0 · Students w/ disabilities (504) 0
Students disciplined for harassment or bullying, on the basis of sex0
Hispanic 0 · Am. Indian / AK Native 0 · Asian 0 · Hawaiian / Pac. Isl. 0 · Black 0 · White 0 · Two+ 0 | Male 0 · Female 0 | English learners 0 | Students w/ disabilities (IDEA) 0 · Students w/ disabilities (504) 0
Students reported harassed or bullied, on the basis of disability0
Hispanic 0 · Am. Indian / AK Native 0 · Asian 0 · Hawaiian / Pac. Isl. 0 · Black 0 · White 0 · Two+ 0 | Male 0 · Female 0 | English learners 0 | Students w/ disabilities (IDEA) 0 · Students w/ disabilities (504) 0
Students reported harassed or bullied, on the basis of race, color, or national origin0
Hispanic 0 · Am. Indian / AK Native 0 · Asian 0 · Hawaiian / Pac. Isl. 0 · Black 0 · White 0 · Two+ 0 | Male 0 · Female 0 | English learners 0 | Students w/ disabilities (IDEA) 0 · Students w/ disabilities (504) 0
Students reported harassed or bullied, on the basis of sex1
Hispanic 0 · Am. Indian / AK Native 0 · Asian 0 · Hawaiian / Pac. Isl. 0 · Black 1 · White 0 · Two+ 0 | Male 0 · Female 1 | English learners 0 | Students w/ disabilities (IDEA) 0 · Students w/ disabilities (504) 0
Offenses
Firearm use incidents, reportedNo
Homicides, reportedNo
Incidents, physical attack or battery2
Sch Offense Batt Bystud 2
Incidents, physical attack with a weapon0
Incidents, physical attack without a weapon3
Incidents, possession of a firearm or explosive device0
Incidents, rape or attempted rape0
Incidents, robbery with a weapon0
Incidents, robbery without a weapon0
Incidents, threats with a weapon0
Incidents, threats without a weapon2
Transfers to Alternative Schools
Transfers to alternative schools (students with disabilities (IDEA))0
Hispanic 0 · Am. Indian / AK Native 0 · Asian 0 · Hawaiian / Pac. Isl. 0 · Black 0 · White 0 · Two+ 0 | Male 0 · Female 0
Transfers to alternative schools (students with disabilities)
English learners 0 | Students w/ disabilities (504) 0
Transfers to alternative schools (students without disabilities)0
Hispanic 0 · Am. Indian / AK Native 0 · Asian 0 · Hawaiian / Pac. Isl. 0 · Black 0 · White 0 · Two+ 0 | Male 0 · Female 0 | English learners 0
This profile is derived exclusively from publicly available federal and state datasets. It may not reflect the most current information available. We encourage parents and families to supplement this data with information published directly on the school’s website, which may include more recent figures, additional programs, or updated enrollment data.