Catherine Kolnaski Magnet School vs Mystic River Magnet School
A head-to-head comparison of two elementary schools in Connecticut, United States, 5.3 km apart, using official American 2025 data. The better value in each row is highlighted.
Catherine Kolnaski Magnet School
Groton · Public elementary · Grades PK–5
375 students
Mystic River Magnet School
Mystic · Public elementary · Grades PK–5
520 students
| Measure | Catherine Kolnaski Magnet School Groton, Connecticut | Mystic River Magnet School Mystic, Connecticut |
|---|---|---|
| Success Index (US) | 53 Top 50% | 47 Lower 50% |
| State rank | #393 of 596 | #432 of 596 |
| National rank | #23162 of 50,301 | #27310 of 50,301 |
| Sector | Public | Public |
| Type | Elementary | Elementary |
| Year range | Grades PK–5 | Grades PK–5 |
| Students | 375 | 520 |
| Enrollment | 375 | 520 |
| Free/reduced-price lunch | 80.3% | 81.3% |
| Students per teacher | 12.1 | 12.1 |
| Reading proficiency | 62% | – |
| Math proficiency | 42% | – |
| city | Groton | Mystic |
| state | Connecticut | Connecticut |
| Website | – | – |
The verdict
- •Catherine Kolnaski Magnet School scores higher on the Success Index (US) (52.8 vs 46.8).
- •Catherine Kolnaski Magnet School does better on community advantage (fewer free/reduced-price lunch) (80.3% vs 81.3%).
- •Mystic River Magnet School is the larger school with 520 students compared with 375.
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 Catherine Kolnaski Magnet School better than Mystic River Magnet School?
On the Success Index (US), Catherine Kolnaski Magnet School ranks higher (52.8 vs 46.8 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 Catherine Kolnaski Magnet School and Mystic River Magnet School?
About 5.3 km in a straight line, between Groton and Mystic in Connecticut.
Which has the better Enrollment?
Catherine Kolnaski Magnet School: 375. Mystic River Magnet School: 520. Students enrolled in the latest NCES directory year.
How do Catherine Kolnaski Magnet School and Mystic River Magnet School rank in Connecticut?
Catherine Kolnaski Magnet School is 393rd of 596 and Mystic River Magnet School is 432nd of 596 among elementary schools in Connecticut on the 2025 Success Index (US).