Francis J O'neill School
🇺🇸 Official data · 2025Central Islip, New York 11722 · Central Islip Union Free School District
#1940 of 2,536 elementary schools in New York
#36246 of 50,301 nationally
About Francis J O'neill School
Francis J O'neill School is a public elementary located in Central Islip, in the Central Islip Union Free School District school district of New York, United States. It caters for Grades K–6. In 2025 it enrolled 600 students. Traditional public schools run by a school district; free to attend.
Its Success Index (US) is 33.5 out of 100, placing it in the lower 50% of elementary schools in United States and 1940th of 2,536 ranked elementary schools in New York. Its strongest component is students per teacher (59th percentile), and its weakest is reading proficiency (18th percentile).
Other published figures: enrollment 600.
There are 8 schools in Central Islip; Francis J O'neill School ranks 4th of 8 scored schools there.
Success Index (US) breakdown
Each component is a percentile against elementary schools across United States.
- Math proficiency (30%)40%
- Reading proficiency (30%)31%
- Community advantage (fewer free/reduced-price lunch) (25%)75.2%
- Students per teacher (15%)14.0
The Success Index (US) summarises published data about a school community. It is not a measure of teaching quality. Read the methodology.
Published measures
All figures published for Francis J O'neill School by the official sources.
- Enrollment
- 600
- Students enrolled in the latest NCES directory year.
- Free/reduced-price lunch
- 75.2%
- Share of students eligible for free or reduced-price lunch.
- Students per teacher
- 14.0
- Enrollment divided by FTE teachers; not class size.
- Reading proficiency
- 31%
- Share of tested students proficient or above (all students, all grades).
- Math proficiency
- 40%
- Share of tested students proficient or above (all students, all grades).
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Schools near Francis J O'neill School
Closest schools by straight-line distance, with their Success Index (US).
South Shore Charter School
Central Islip · Charter elementary · Grades K–2
268 students · 505 m away
Charles A Mulligan Elementary School
Central Islip · Public elementary · Grades K–6
997 students · 644 m away
Anthony Alfano Elementary School
Central Islip · Public elementary · Grades PK–6
491 students · 979 m away
Cordello Avenue Elementary School
Central Islip · Public elementary · Grades K–6
490 students · 995 m away
Ralph Reed School
Central Islip · Public middle · Grades 7–8
1,192 students · 1.1 km away
Central Islip Senior High School
Central Islip · Public high · Grades 9–12
2,615 students · 1.4 km away
Marguerite L Mulvey School
Central Islip · Public elementary · Grades K–6
567 students · 1.4 km away
Andrew T Morrow School
Islandia · Public elementary · Grades K–6
821 students · 2.4 km away
Bretton Woods Elementary School
Hauppauge · Public elementary · Grades PK–5
509 students · 2.8 km away
East Elementary School
Brentwood · Public elementary · Grades PK–K
430 students · 3.1 km away
Similar schools
Public elementary schools in New York with a comparable Enrollment.
Ps 53 Basheer Quisim
Bronx · Public elementary · Grades PK–5
600 students
Ps 8 Isaac Varian
Bronx · Public elementary · Grades PK–5
600 students
Ps 105 Bay School (The)
Far Rockaway · Public elementary · Grades PK–8
600 students
Ps 121 Throop
Bronx · Public elementary · Grades PK–5
601 students
Ps 60 Alice Austen
Staten Island · Public elementary · Grades PK–5
599 students
Ps 236 Mill Basin
Brooklyn · Public elementary · Grades PK–5
599 students
Frequently asked questions
Is Francis J O'neill School a good school?
Francis J O'neill School has a Success Index (US) of 33.5 out of 100 (Lower 50% of elementary schools in United States) and ranks #1940 of 2,536 in New York. The index summarises published data about the school community and, where available, attainment; it does not measure teaching quality, so visit the school and ask about support at your child's level.
Where does Francis J O'neill School rank in New York?
Francis J O'neill School ranks #1940 of 2,536 elementary schools in New York and #36246 of 50,301 nationally on the Success Index (US) (2025 data).
How many students attend Francis J O'neill School?
Francis J O'neill School had 600 students in 2025.
Is Francis J O'neill School a elementary school or a high school?
Francis J O'neill School is classified as a elementary covering Grades K–6. It is a public school.
What other schools are near Francis J O'neill School?
There are 10 schools within 15 km of Francis J O'neill School; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.