What grades does Building 21 Allentown serve?

Building 21 Allentown is a High school serving students in Allentown, PA. The school is part of the local school district.

Where is Building 21 Allentown located?

Building 21 Allentown is located at Allentown, PA in a urban area.

What is the student-teacher ratio at Building 21 Allentown?

Building 21 Allentown has a student-teacher ratio of 15.8:1.

What schools are in Allentown, PA?

Allentown, PA is served by the local school district. Building 21 Allentown is one of the High schools in the area.

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Building 21 Allentown — School Calendar 2026-27

Q: How many students attend Building 21 Allentown?

Building 21 Allentown currently enrolls 411 students across High grade levels. The school operates under the local school district in PA.

High|Allentown, Pennsylvania|Allentown City SD

Allentown, PA 18102

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School Profile

Grades

9–12

Enrollment

411

Student:Teacher

15.8:1

Locale

Urban

District

Allentown City SD

Econ. Disadvantaged

100.0%

Phone

(484)765-4400

School Statistics

Academics (SY 2020-21)

ELA Proficiency

<50%

Math Proficiency

40-59%

Graduation Rate

75-79%

Chronic Absenteeism

49.2%

SY 2019-20

Programs & Activities (SY 2021-22)

Gifted & Talented

4 students enrolled

Dual Enrollment

54 students enrolled

Student-Teacher Ratio: 19.8:1

Worse than average in PA

Technology & Internet Access (SY 2021-22)

Wi-Fi

Campus-wide wireless

Fiber Internet

High-speed connection

462

Connected devices

Staff & Support Services (SY 2021-22)

Teachers (FTE)

100% fully certified

Counselors

Nurses

Security Staff

Anti-Bullying Policy

District Finance (FY 2023)

Per-Pupil Spending

$18,007

Total current expenditure

Instruction Spending

$11,725

Per pupil, classroom only

Total Revenue/Pupil

$29,055

All funding sources

Funding Sources

Federal 14%State 57%Local 28%

District-level data from NCES F-33 Survey

Community Context

Median Home Value

$349,765

+2.8% 1yr+40.2% 5yr

Allentown, PA metro area

Community Need Level

Moderate

CDC/ATSDR Social Vulnerability Index 2022

Neighborhood Indicators (Census Tract)

19.9%

Below 150% poverty line

5.8%

Unemployment rate

6.5%

Uninsured residents

10.3%

No HS diploma (25+)

Special Education (IDEA)

District-level data from IDEA Part B · Students ages 3-21 served under IDEA

Total Students Served

3,810

Ages 3-21 under IDEA

School-Age (6-21)

3,265

Receiving special ed services

Est. % of Enrollment

100%

District rate, school may vary

Disability Categories (District)

Specific Learning Disability

1,188 (36%)

Autism

718 (22%)

Other Health Impairment

578 (18%)

Speech/Language Impairment

341 (10%)

Emotional Disturbance

181 (6%)

Intellectual Disability

171 (5%)

Source: U.S. Department of Education, IDEA Section 618 Data · District-level counts · Individual school figures may differ

Enrollment Trend (2014-2025)

415

Current enrollment

Stable(-10% 5yr)

Frequently Asked Questions about Building 21 Allentown

Building 21 Allentown currently enrolls 411 students across High grade levels. The school operates under the local school district in PA.

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School profiles: Data from NCES Common Core of Data. Calendar events from district calendar sources, updated automatically. · How we verify this data