Central Middle School vs Cos Cob School
A head-to-head comparison of two schools in Connecticut, United States, 1.1 km apart, using official American 2025 data. The better value in each row is highlighted.
Central Middle School
Greenwich · Public middle · Grades 6–8
483 students
Cos Cob School
Cos Cob · Public elementary · Grades PK–5
343 students
| Measure | Central Middle School Greenwich, Connecticut | Cos Cob School Cos Cob, Connecticut |
|---|---|---|
| Success Index (US) | 89 Top 5% | 89 Top 5% |
| State rank | #25 of 178 | #74 of 596 |
| National rank | #367 of 15,369 | #908 of 50,301 |
| Sector | Public | Public |
| Type | Middle | Elementary |
| Year range | Grades 6–8 | Grades PK–5 |
| Students | 483 | 343 |
| Enrollment | 483 | 343 |
| Free/reduced-price lunch | 19.9% | 16% |
| Students per teacher | 9.3 | 10.1 |
| Reading proficiency | 73% | 72% |
| Math proficiency | 66% | 74% |
| city | Greenwich | Cos Cob |
| state | Connecticut | Connecticut |
| Website | – | – |
The verdict
- •Both schools have almost identical Success Index (US) scores (88.9 vs 89.4).
- •Cos Cob School does better on math proficiency (74% vs 66%).
- •Central Middle School does better on reading proficiency (73% vs 72%).
- •Cos Cob School does better on community advantage (fewer free/reduced-price lunch) (16% vs 19.9%).
- •Central Middle School does better on students per teacher (9.3 vs 10.1).
- •Central Middle School is the larger school with 483 students compared with 343.
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 Central Middle School better than Cos Cob 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 Central Middle School and Cos Cob School?
About 1.1 km in a straight line, between Greenwich and Cos Cob in Connecticut.
Which has the better Enrollment?
Central Middle School: 483. Cos Cob School: 343. Students enrolled in the latest NCES directory year.
How do Central Middle School and Cos Cob School rank in Connecticut?
Central Middle School is 25th of 178 and Cos Cob School is 74th of 596 among middle schools in Connecticut on the 2025 Success Index (US).