Building 21 Allentown vs Roberto Clemente CS
A head-to-head comparison of two schools in Pennsylvania, United States, 327 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
Roberto Clemente CS
Allentown · Charter other · Grades K–12
619 students
| Measure | Building 21 Allentown Allentown, Pennsylvania | Roberto Clemente CS Allentown, Pennsylvania |
|---|---|---|
| Success Index (US) | 16 Lower 50% | – Not rated |
| State rank | #585 of 618 | – |
| National rank | #15905 of 16,910 | – |
| Sector | Public | Charter |
| Type | High | Other |
| Year range | Grades 9–12 | Grades K–12 |
| Students | 415 | 619 |
| Enrollment | 415 | 619 |
| Free/reduced-price lunch | 99% | 101.1% |
| Students per teacher | 16.0 | 12.6 |
| Reading proficiency | 27% | 45% |
| Math proficiency | 17% | 15% |
| city | Allentown | Allentown |
| state | Pennsylvania | Pennsylvania |
| Website | – | – |
The verdict
- •Building 21 Allentown does better on math proficiency (17% vs 15%).
- •Roberto Clemente CS does better on reading proficiency (45% vs 27%).
- •Building 21 Allentown does better on community advantage (fewer free/reduced-price lunch) (99% vs 101.1%).
- •Roberto Clemente CS does better on students per teacher (12.6 vs 16.0).
- •Roberto Clemente CS is the larger school with 619 students compared with 415.
- •Building 21 Allentown is a public school while Roberto Clemente CS is a charter school, so fees and admission rules differ.
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 Roberto Clemente CS?
The two schools are very close on the Success Index (US). Differences in sector, size, programmes and distance from home will matter more than the score.
How far apart are Building 21 Allentown and Roberto Clemente CS?
About 327 m in a straight line, between Allentown and Allentown in Pennsylvania.
Which has the better Enrollment?
Building 21 Allentown: 415. Roberto Clemente CS: 619. Students enrolled in the latest NCES directory year.
How do Building 21 Allentown and Roberto Clemente CS rank in Pennsylvania?
Building 21 Allentown is 585th of 618 and Roberto Clemente CS is unranked among high schools in Pennsylvania on the 2025 Success Index (US).