Catherine Kolnaski Magnet School vs Charles Barnum Magnet School
A head-to-head comparison of two elementary schools in Connecticut, United States, 4.1 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
Charles Barnum Magnet School
Groton · Public elementary · Grades PK–5
339 students
| Measure | Catherine Kolnaski Magnet School Groton, Connecticut | Charles Barnum Magnet School Groton, Connecticut |
|---|---|---|
| Success Index (US) | 53 Top 50% | 66 Top 50% |
| State rank | #393 of 596 | #304 of 596 |
| National rank | #23162 of 50,301 | #14158 of 50,301 |
| Sector | Public | Public |
| Type | Elementary | Elementary |
| Year range | Grades PK–5 | Grades PK–5 |
| Students | 375 | 339 |
| Enrollment | 375 | 339 |
| Free/reduced-price lunch | 80.3% | 51.3% |
| Students per teacher | 12.1 | 12.1 |
| Reading proficiency | 62% | 62% |
| Math proficiency | 42% | 52% |
| city | Groton | Groton |
| state | Connecticut | Connecticut |
| Website | – | – |
The verdict
- •Charles Barnum Magnet School scores higher on the Success Index (US) (65.9 vs 52.8).
- •Charles Barnum Magnet School does better on math proficiency (52% vs 42%).
- •Charles Barnum Magnet School does better on community advantage (fewer free/reduced-price lunch) (51.3% vs 80.3%).
- •Catherine Kolnaski Magnet School is the larger school with 375 students compared with 339.
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 Charles Barnum Magnet School?
On the Success Index (US), Charles Barnum Magnet School ranks higher (65.9 vs 52.8 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 Charles Barnum Magnet School?
About 4.1 km in a straight line, between Groton and Groton in Connecticut.
Which has the better Enrollment?
Catherine Kolnaski Magnet School: 375. Charles Barnum Magnet School: 339. Students enrolled in the latest NCES directory year.
How do Catherine Kolnaski Magnet School and Charles Barnum Magnet School rank in Connecticut?
Catherine Kolnaski Magnet School is 393rd of 596 and Charles Barnum Magnet School is 304th of 596 among elementary schools in Connecticut on the 2025 Success Index (US).