Central Islip Senior High School
🇺🇸 Official data · 2025Central Islip, New York 11722 · Central Islip Union Free School District
#572 of 1,079 high schools in New York
#2681 of 16,910 nationally
About Central Islip Senior High School
Central Islip Senior High School is a public high located in Central Islip, in the Central Islip Union Free School District school district of New York, United States. It caters for Grades 9–12. In 2025 it enrolled 2,615 students. Traditional public schools run by a school district; free to attend.
Its Success Index (US) is 72.5 out of 100, placing it in the top 25% of high schools in United States and 572nd of 1,079 ranked high schools in New York. Its strongest component is math proficiency (94th percentile), and its weakest is students per teacher (34th percentile).
Other published figures: enrollment 2,615.
There are 8 schools in Central Islip; Central Islip Senior High School ranks 2nd of 8 scored schools there.
Success Index (US) breakdown
Each component is a percentile against high schools across United States.
- Math proficiency (30%)87%
- Reading proficiency (30%)89%
- Community advantage (fewer free/reduced-price lunch) (25%)55.6%
- Students per teacher (15%)17.0
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 Central Islip Senior High School by the official sources.
- Enrollment
- 2,615
- Students enrolled in the latest NCES directory year.
- Free/reduced-price lunch
- 55.6%
- Share of students eligible for free or reduced-price lunch.
- Students per teacher
- 17.0
- Enrollment divided by FTE teachers; not class size.
- Reading proficiency
- 89%
- Share of tested students proficient or above (all students, all grades).
- Math proficiency
- 87%
- Share of tested students proficient or above (all students, all grades).
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Schools near Central Islip Senior High School
Closest schools by straight-line distance, with their Success Index (US).
Anthony Alfano Elementary School
Central Islip · Public elementary · Grades PK–6
491 students · 571 m away
Ralph Reed School
Central Islip · Public middle · Grades 7–8
1,192 students · 1.2 km away
Charles A Mulligan Elementary School
Central Islip · Public elementary · Grades K–6
997 students · 1.2 km away
South Shore Charter School
Central Islip · Charter elementary · Grades K–2
268 students · 1.3 km away
Francis J O'neill School
Central Islip · Public elementary · Grades K–6
600 students · 1.4 km away
Cordello Avenue Elementary School
Central Islip · Public elementary · Grades K–6
490 students · 1.6 km away
Bretton Woods Elementary School
Hauppauge · Public elementary · Grades PK–5
509 students · 1.7 km away
Andrew T Morrow School
Islandia · Public elementary · Grades K–6
821 students · 2.6 km away
Hauppauge High School
Hauppauge · Public high · Grades 9–12
1,038 students · 2.7 km away
East Elementary School
Brentwood · Public elementary · Grades PK–K
430 students · 2.8 km away
Similar schools
Public high schools in New York with a comparable Enrollment.
Middletown High School
Middletown · Public high · Grades 9–12
2,495 students
Susan E Wagner High School
Staten Island · Public high · Grades 9–12
2,743 students
Patchogue-Medford High School
Medford · Public high · Grades 9–12
2,487 students
Arlington High School
Lagrangeville · Public high · Grades 9–12
2,472 students
John Bowne High School
Flushing · Public high · Grades 9–12
2,778 students
Curtis High School
Staten Island · Public high · Grades 9–12
2,439 students
Frequently asked questions
Is Central Islip Senior High School a good school?
Central Islip Senior High School has a Success Index (US) of 72.5 out of 100 (Top 25% of high schools in United States) and ranks #572 of 1,079 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 Central Islip Senior High School rank in New York?
Central Islip Senior High School ranks #572 of 1,079 high schools in New York and #2681 of 16,910 nationally on the Success Index (US) (2025 data).
How many students attend Central Islip Senior High School?
Central Islip Senior High School had 2,615 students in 2025.
Is Central Islip Senior High School a elementary school or a high school?
Central Islip Senior High School is classified as a high covering Grades 9–12. It is a public school.
What other schools are near Central Islip Senior High School?
There are 10 schools within 15 km of Central Islip Senior High School; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.