Building 21
- 371 Students
- 18.1 Teachers (FTE)
- 20.5:1 Student:Teacher
- 09–12 Grade Range
- Open Status
- (215)400-7450 Phone
SchoolFinderUSA
National School Directory
Building 21
Philadelphia, PA 19138
High Supplemental Virtual Grades 09–12 SchoolScore™ D (52.7)
371
Students
18.1
Teachers
20.5:1
Student:Teacher
(215)400-7450
Phone
Building 21 is a public school administered by the Philadelphia City SD district in Philadelphia, PENNSYLVANIA, providing education at the High level for students in grades 09–12.
Key statistics: 371 students enrolled; a 20.5:1 student-to-teacher ratio.
The school is classified as City: Large by the NCES locale classification system.
Data sourced from the National Center for Education Statistics (NCES) Common Core of Data (CCD), the definitive federal database of U.S. public schools, updated annually.
vs Pennsylvania High School Average
Enrollment
371.0
State avg: 740.0
▼ 50% worse
Student:Teacher Ratio
20.52:1
State avg: 12.7:1
▲ 61% worse
Free Lunch %
103.0%
State avg: 100.8%
▲ 2% worse
School Details
School Name
Building 21
NCESSCH ID
421899007534
State School ID
PA-126515001-8332
School Type
Regular School
Level
High
Status
Open
Charter
No
Charter Auth
–
Virtual
Supplemental Virtual
NSLP Status
Yes under Community Eligibility Option (CEO)
Shared Time
No
School Year
2024-2025
Location
Address
6501 Limekiln Pike
City
Philadelphia
State
Pennsylvania
ZIP Code
19138
County
Philadelphia County
Metro Area
Philadelphia-Camden-Wilmington, PA-NJ-DE-MD
Metro Type
Metropolitan
Locale
City: Large
Cong. District
4203
State Leg. Upper
42004
State Leg. Lower
42201
Latitude
40.05363
Longitude
-75.15254
Grades Offered
9th
10th
11th
12th
371
Total Students
18.1
Teachers FTE
20.5:1
Student:Teacher
Enrollment by Grade
18.1
Teachers (FTE)
Full Staff Breakdown
| Metric | Value |
|---|---|
| Teachers (FTE) | 18.1 |
National School Lunch Program Participation
Lunch Program Details
| Program | Students | % of Enrollment |
|---|---|---|
| No Category Codes | 382 | 103% |
| Not Applicable | 0 | 0% |
District Info
District Name
Philadelphia City SD
LEAID
4218990
State LEA ID
PA-126515001
Phone
(215)400-4000
Website
http://www.philasd.org
Type
Regular public school district that is not a component of a supervisory union
Status
Open
City
Philadelphia
District Finance (F-33)
Total Revenue
$4,533,864K
Federal Revenue
$618,623K
State Revenue
$2,042,588K
Local Revenue
$1,872,653K
Total Expenditure
$4,368,448K
Instruction Exp.
$1,155,164K
Support Services
$929,078K
Other Current Exp.
$84,696K
Geographic
Nearby Schools
Public schools within ~12 miles of Building 21
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FAQ
Frequently Asked Questions
Common questions about Building 21, answered using official NCES data.