Building 21 Allentown vs Central El Sch
A head-to-head comparison of two schools in Pennsylvania, United States, 944 m apart, using official American 2025 data. The better value in each row is highlighted.
Building 21 Allentown
Allentown · Public high · Grades 9–12
415 students
Central El Sch
Allentown · Public elementary · Grades PK–5
694 students
| Measure | Building 21 Allentown Allentown, Pennsylvania | Central El Sch Allentown, Pennsylvania |
|---|---|---|
| Success Index (US) | 16 Lower 50% | 12 Lower 50% |
| State rank | #585 of 618 | #1590 of 1,627 |
| National rank | #15905 of 16,910 | #48793 of 50,301 |
| Sector | Public | Public |
| Type | High | Elementary |
| Year range | Grades 9–12 | Grades PK–5 |
| Students | 415 | 694 |
| Enrollment | 415 | 694 |
| Free/reduced-price lunch | 99% | 100.4% |
| Students per teacher | 16.0 | 14.2 |
| Reading proficiency | 27% | 23% |
| Math proficiency | 17% | 11% |
| city | Allentown | Allentown |
| state | Pennsylvania | Pennsylvania |
| Website | – | – |
The verdict
- •Building 21 Allentown scores higher on the Success Index (US) (16.1 vs 12.2).
- •Building 21 Allentown does better on math proficiency (17% vs 11%).
- •Building 21 Allentown does better on reading proficiency (27% vs 23%).
- •Building 21 Allentown does better on community advantage (fewer free/reduced-price lunch) (99% vs 100.4%).
- •Central El Sch does better on students per teacher (14.2 vs 16.0).
- •Central El Sch is the larger school with 694 students compared with 415.
The Success Index (US) summarises published results and context from official data. It does not measure teaching quality or fit. Methodology.
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Frequently asked questions
Is Building 21 Allentown better than Central El Sch?
On the Success Index (US), Building 21 Allentown ranks higher (16.1 vs 12.2 out of 100). The index is built from published results and context data, not from teaching quality or fit, so visit both schools before deciding.
How far apart are Building 21 Allentown and Central El Sch?
About 944 m in a straight line, between Allentown and Allentown in Pennsylvania.
Which has the better Enrollment?
Building 21 Allentown: 415. Central El Sch: 694. Students enrolled in the latest NCES directory year.
How do Building 21 Allentown and Central El Sch rank in Pennsylvania?
Building 21 Allentown is 585th of 618 and Central El Sch is 1590th of 1,627 among high schools in Pennsylvania on the 2025 Success Index (US).