Gildersleeve School vs John B. Sliney School
A head-to-head comparison of two elementary schools in Connecticut, United States, 38 km apart, using official American 2025 data. The better value in each row is highlighted.
Gildersleeve School
Portland · Public elementary · Grades 2–4
253 students
John B. Sliney School
Branford · Public elementary · Grades PK–4
252 students
| Measure | Gildersleeve School Portland, Connecticut | John B. Sliney School Branford, Connecticut |
|---|---|---|
| Success Index (US) | 73 Top 25% | 71 Top 25% |
| State rank | #259 of 596 | #269 of 596 |
| National rank | #9439 of 50,301 | #10663 of 50,301 |
| Sector | Public | Public |
| Type | Elementary | Elementary |
| Year range | Grades 2–4 | Grades PK–4 |
| Students | 253 | 252 |
| Enrollment | 253 | 252 |
| Free/reduced-price lunch | 32.8% | 47.2% |
| Students per teacher | 12.0 | 9.0 |
| Reading proficiency | 62% | 57% |
| Math proficiency | 57% | 62% |
| city | Portland | Branford |
| state | Connecticut | Connecticut |
| Website | – | – |
The verdict
- •Gildersleeve School scores higher on the Success Index (US) (72.7 vs 70.9).
- •John B. Sliney School does better on math proficiency (62% vs 57%).
- •Gildersleeve School does better on reading proficiency (62% vs 57%).
- •Gildersleeve School does better on community advantage (fewer free/reduced-price lunch) (32.8% vs 47.2%).
- •John B. Sliney School does better on students per teacher (9.0 vs 12.0).
- •Gildersleeve School is the larger school with 253 students compared with 252.
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 Gildersleeve School better than John B. Sliney School?
On the Success Index (US), Gildersleeve School ranks higher (72.7 vs 70.9 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 Gildersleeve School and John B. Sliney School?
About 38 km in a straight line, between Portland and Branford in Connecticut.
Which has the better Enrollment?
Gildersleeve School: 253. John B. Sliney School: 252. Students enrolled in the latest NCES directory year.
How do Gildersleeve School and John B. Sliney School rank in Connecticut?
Gildersleeve School is 259th of 596 and John B. Sliney School is 269th of 596 among elementary schools in Connecticut on the 2025 Success Index (US).