Catherine Kolnaski Magnet School vs Winthrop STEM Elementary Magnet School
A head-to-head comparison of two elementary schools in Connecticut, United States, 3.9 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
Winthrop STEM Elementary Magnet School
New London · Public elementary · Grades PK–5
449 students
| Measure | Catherine Kolnaski Magnet School Groton, Connecticut | Winthrop STEM Elementary Magnet School New London, Connecticut |
|---|---|---|
| Success Index (US) | 53 Top 50% | 54 Top 50% |
| State rank | #393 of 596 | #390 of 596 |
| National rank | #23162 of 50,301 | #22606 of 50,301 |
| Sector | Public | Public |
| Type | Elementary | Elementary |
| Year range | Grades PK–5 | Grades PK–5 |
| Students | 375 | 449 |
| Enrollment | 375 | 449 |
| Free/reduced-price lunch | 80.3% | 73.9% |
| Students per teacher | 12.1 | 11.0 |
| Reading proficiency | 62% | 54% |
| Math proficiency | 42% | 46% |
| city | Groton | New London |
| state | Connecticut | Connecticut |
| Website | – | – |
The verdict
- •Both schools have almost identical Success Index (US) scores (52.8 vs 53.7).
- •Winthrop STEM Elementary Magnet School does better on math proficiency (46% vs 42%).
- •Catherine Kolnaski Magnet School does better on reading proficiency (62% vs 54%).
- •Winthrop STEM Elementary Magnet School does better on community advantage (fewer free/reduced-price lunch) (73.9% vs 80.3%).
- •Winthrop STEM Elementary Magnet School does better on students per teacher (11.0 vs 12.1).
- •Winthrop STEM Elementary Magnet School is the larger school with 449 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 Winthrop STEM Elementary Magnet School?
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 Catherine Kolnaski Magnet School and Winthrop STEM Elementary Magnet School?
About 3.9 km in a straight line, between Groton and New London in Connecticut.
Which has the better Enrollment?
Catherine Kolnaski Magnet School: 375. Winthrop STEM Elementary Magnet School: 449. Students enrolled in the latest NCES directory year.
How do Catherine Kolnaski Magnet School and Winthrop STEM Elementary Magnet School rank in Connecticut?
Catherine Kolnaski Magnet School is 393rd of 596 and Winthrop STEM Elementary Magnet School is 390th of 596 among elementary schools in Connecticut on the 2025 Success Index (US).