Building 21 vs Central HS
Central HS has a higher overall rating of 6.4/10 compared to 5.2/10. Central HS is significantly larger with 2,287 students, about 6.0× the size of Building 21 (382). In math proficiency, Central HS leads at 99.5%.
Attendance data is under correction. A public school's existing Resources & Environment score and overall rating shown here may still reflect an unverified attendance input.
Building 21
Philadelphia, PA
5.2/10
High School9th – 12th
382 students
Central HS
Philadelphia, PA
6.4/10
High School9th – 12th
2,287 students
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| Metric | Building 21 | Central HS |
|---|---|---|
| Overall Rating | 5.2 / 10 | 6.4 / 10 |
| Academic Score | 2.5 | 9.9 |
| Growth Score | 8.5 | 2.3 |
| Diversity Index | — | — |
| Free/Reduced Lunch | 100% | 100% |
| Environment Score | 3.7 | 3.1 |
| State Rank | #2,104 of 2,848 | #1,378 of 2,848 |
| State Percentile | 26th | 52th |
Test Scores
| Subject | Building 21 | Central HS |
|---|---|---|
| Math Proficiency | 7.5% | 99.5% |
| Math (State Avg) | — | — |
| ELA Proficiency | 32.0% | 99.5% |
| ELA (State Avg) | — | — |
School Details
| Detail | Building 21 | Central HS |
|---|---|---|
| Type | High School | High School |
| Grades | 9th – 12th | 9th – 12th |
| Enrollment | 382 | 2,287 |
| Student-Teacher Ratio | 15.3:1 | 20.6:1 |
| Free/Reduced Lunch | 100.0% | 100.0% |
| Graduation Rate (4yr, Class of 2023) | 85–89% | 97.0% |
| District | Philadelphia City SD | Philadelphia City SD |
| City | Philadelphia | Philadelphia |
Neighborhood
| Metric | Philadelphia (19138) | Philadelphia (19141) |
|---|---|---|
| Median Household Income | $51,586 | $42,461 |
| Median Home Value | $167,300 | $143,400 |
| Median Rent | $1,172 | $1,009 |
| College Educated (Bachelor's+) | 17.9% | 16.4% |
| Poverty Rate | 22.6% | 28.6% |
| Avg Commute | 34 min | 33 min |