Kelly John B Sch vs Mastery CS John Wister Elementary
A head-to-head comparison of two elementary schools in Pennsylvania, United States, 1.0 km apart, using official American 2025 data. The better value in each row is highlighted.
Kelly John B Sch
Philadelphia · Public elementary · Grades K–5
365 students
Mastery CS John Wister Elementary
Philadelphia · Charter elementary · Grades K–5
506 students
| Measure | Kelly John B Sch Philadelphia, Pennsylvania | Mastery CS John Wister Elementary Philadelphia, Pennsylvania |
|---|---|---|
| Success Index (US) | 17 Lower 50% | 9 Lower 50% |
| State rank | #1514 of 1,627 | #1614 of 1,627 |
| National rank | #46764 of 50,301 | #49754 of 50,301 |
| Sector | Public | Charter |
| Type | Elementary | Elementary |
| Year range | Grades K–5 | Grades K–5 |
| Students | 365 | 506 |
| Enrollment | 365 | 506 |
| Free/reduced-price lunch | 96.4% | 98.4% |
| Students per teacher | 12.2 | 16.9 |
| Reading proficiency | 19% | 22% |
| Math proficiency | 9% | 5% |
| city | Philadelphia | Philadelphia |
| state | Pennsylvania | Pennsylvania |
| Website | – | – |
The verdict
- •Kelly John B Sch scores higher on the Success Index (US) (16.7 vs 8.8).
- •Kelly John B Sch does better on math proficiency (9% vs 5%).
- •Mastery CS John Wister Elementary does better on reading proficiency (22% vs 19%).
- •Kelly John B Sch does better on community advantage (fewer free/reduced-price lunch) (96.4% vs 98.4%).
- •Kelly John B Sch does better on students per teacher (12.2 vs 16.9).
- •Mastery CS John Wister Elementary is the larger school with 506 students compared with 365.
- •Kelly John B Sch is a public school while Mastery CS John Wister Elementary 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 Kelly John B Sch better than Mastery CS John Wister Elementary?
On the Success Index (US), Kelly John B Sch ranks higher (16.7 vs 8.8 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 Kelly John B Sch and Mastery CS John Wister Elementary?
About 1.0 km in a straight line, between Philadelphia and Philadelphia in Pennsylvania.
Which has the better Enrollment?
Kelly John B Sch: 365. Mastery CS John Wister Elementary: 506. Students enrolled in the latest NCES directory year.
How do Kelly John B Sch and Mastery CS John Wister Elementary rank in Pennsylvania?
Kelly John B Sch is 1514th of 1,627 and Mastery CS John Wister Elementary is 1614th of 1,627 among elementary schools in Pennsylvania on the 2025 Success Index (US).