Laboratory CS vs Mastery CS-Clymer Elementary
A head-to-head comparison of two elementary schools in Pennsylvania, United States, 785 m apart, using official American 2025 data. The better value in each row is highlighted.
Laboratory CS
Philadelphia · Charter elementary · Grades K–8
461 students
Mastery CS-Clymer Elementary
Philadelphia · Charter elementary · Grades K–6
419 students
| Measure | Laboratory CS Philadelphia, Pennsylvania | Mastery CS-Clymer Elementary Philadelphia, Pennsylvania |
|---|---|---|
| Success Index (US) | 41 Lower 50% | 15 Lower 50% |
| State rank | #1152 of 1,627 | #1543 of 1,627 |
| National rank | #31323 of 50,301 | #47443 of 50,301 |
| Sector | Charter | Charter |
| Type | Elementary | Elementary |
| Year range | Grades K–8 | Grades K–6 |
| Students | 461 | 419 |
| Enrollment | 461 | 419 |
| Free/reduced-price lunch | 39.3% | 99.3% |
| Students per teacher | 22.0 | 13.5 |
| Reading proficiency | 53% | 25% |
| Math proficiency | 23% | 11% |
| city | Philadelphia | Philadelphia |
| state | Pennsylvania | Pennsylvania |
| Website | – | – |
The verdict
- •Laboratory CS scores higher on the Success Index (US) (40.9 vs 15.4).
- •Laboratory CS does better on math proficiency (23% vs 11%).
- •Laboratory CS does better on reading proficiency (53% vs 25%).
- •Laboratory CS does better on community advantage (fewer free/reduced-price lunch) (39.3% vs 99.3%).
- •Mastery CS-Clymer Elementary does better on students per teacher (13.5 vs 22.0).
- •Laboratory CS is the larger school with 461 students compared with 419.
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 Laboratory CS better than Mastery CS-Clymer Elementary?
On the Success Index (US), Laboratory CS ranks higher (40.9 vs 15.4 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 Laboratory CS and Mastery CS-Clymer Elementary?
About 785 m in a straight line, between Philadelphia and Philadelphia in Pennsylvania.
Which has the better Enrollment?
Laboratory CS: 461. Mastery CS-Clymer Elementary: 419. Students enrolled in the latest NCES directory year.
How do Laboratory CS and Mastery CS-Clymer Elementary rank in Pennsylvania?
Laboratory CS is 1152nd of 1,627 and Mastery CS-Clymer Elementary is 1543rd of 1,627 among elementary schools in Pennsylvania on the 2025 Success Index (US).