Francis J O'neill School vs Marguerite L Mulvey School
A head-to-head comparison of two elementary schools in New York, United States, 1.4 km apart, using official American 2025 data. The better value in each row is highlighted.
Francis J O'neill School
Central Islip · Public elementary · Grades K–6
600 students
Marguerite L Mulvey School
Central Islip · Public elementary · Grades K–6
567 students
| Measure | Francis J O'neill School Central Islip, New York | Marguerite L Mulvey School Central Islip, New York |
|---|---|---|
| Success Index (US) | 34 Lower 50% | 34 Lower 50% |
| State rank | #1940 of 2,536 | #1942 of 2,536 |
| National rank | #36246 of 50,301 | #36266 of 50,301 |
| Sector | Public | Public |
| Type | Elementary | Elementary |
| Year range | Grades K–6 | Grades K–6 |
| Students | 600 | 567 |
| Enrollment | 600 | 567 |
| Free/reduced-price lunch | 75.2% | 62.1% |
| Students per teacher | 14.0 | 12.9 |
| Reading proficiency | 31% | 28% |
| Math proficiency | 40% | 30% |
| city | Central Islip | Central Islip |
| state | New York | New York |
| Website | – | – |
The verdict
- •Both schools have almost identical Success Index (US) scores (33.5 vs 33.5).
- •Francis J O'neill School does better on math proficiency (40% vs 30%).
- •Francis J O'neill School does better on reading proficiency (31% vs 28%).
- •Marguerite L Mulvey School does better on community advantage (fewer free/reduced-price lunch) (62.1% vs 75.2%).
- •Marguerite L Mulvey School does better on students per teacher (12.9 vs 14.0).
- •Francis J O'neill School is the larger school with 600 students compared with 567.
The Success Index (US) summarises published results and context from official data. It does not measure teaching quality or fit. Methodology.
Free academic assessment
Torn between two schools? Start with your child.
Whichever you choose, a free Success Tutoring assessment shows exactly where your child is in English and Maths and how to get ahead before the next school year.
- Personalised learning plan mapped to the Australian Curriculum
- English & Maths from Kindergarten to Year 12
- Flexible memberships, no lock-in contracts
- Centres across NSW, VIC, QLD, WA, SA and ACT
Frequently asked questions
Is Francis J O'neill School better than Marguerite L Mulvey 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 Francis J O'neill School and Marguerite L Mulvey School?
About 1.4 km in a straight line, between Central Islip and Central Islip in New York.
Which has the better Enrollment?
Francis J O'neill School: 600. Marguerite L Mulvey School: 567. Students enrolled in the latest NCES directory year.
How do Francis J O'neill School and Marguerite L Mulvey School rank in New York?
Francis J O'neill School is 1940th of 2,536 and Marguerite L Mulvey School is 1942nd of 2,536 among elementary schools in New York on the 2025 Success Index (US).