For the 2026 school year, there are 6 public elementary schools serving 3,413 students in Central Islip, NY.
The top-ranked public elementary schools in Central Islip, NY are Francis J O'neill School, Marguerite L Mulvey School and Anthony Alfano Elementary School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Central Islip, NY public elementary schools have an average math proficiency score of 35% (versus the New York public elementary school average of 52%), and reading proficiency score of 29% (versus the 48% statewide average). Elementary schools in Central Islip have an average ranking of 2/10, which is in the bottom 50% of New York public elementary schools.
Minority enrollment is 98% of the student body (majority Hispanic), which is more than the New York public elementary school average of 62% (majority Hispanic).
Best Public Elementary Schools in Central Islip, NY (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Francis J O'neill School
(Math: 44% | Reading: 41%)
Rank:
Rank:
4/
Bottom 50%10
44 E Cherry St
Central Islip, NY 11722
(631) 348-5060
Central Islip, NY 11722
(631) 348-5060
Gr: K-6 | 600 students Student-teacher ratio: 14:1 Minority enrollment: 98%
Rank: #22.
Marguerite L Mulvey School
(Math: 35% | Reading: 35%)
Rank:
Rank:
3/
Bottom 50%10
44 E Cherry St
Central Islip, NY 11722
(631) 348-5059
Central Islip, NY 11722
(631) 348-5059
Gr: K-6 | 567 students Student-teacher ratio: 13:1 Minority enrollment: 99%
Rank: #33.
Anthony Alfano Elementary School
(Math: 40% | Reading: 27%)
Rank:
Rank:
3/
Bottom 50%10
50 Wheeler Rd
Central Islip, NY 11722
(631) 348-5139
Central Islip, NY 11722
(631) 348-5139
Gr: PK-6 | 491 students Student-teacher ratio: 12:1 Minority enrollment: 98%
Rank: #44.
Charles A Mulligan Elementary School
(Math: 33% | Reading: 21%)
Rank:
Rank:
2/
Bottom 50%10
1 Broadway
Central Islip, NY 11722
(631) 348-5041
Central Islip, NY 11722
(631) 348-5041
Gr: K-6 | 997 students Student-teacher ratio: 15:1 Minority enrollment: 98%
Rank: #55.
Cordello Avenue Elementary School
(Math: 27% | Reading: 23%)
Rank:
Rank:
1/
Bottom 50%10
51 Cordello Ave
Central Islip, NY 11722
(631) 348-4189
Central Islip, NY 11722
(631) 348-4189
Gr: K-6 | 490 students Student-teacher ratio: 11:1 Minority enrollment: 99%
Rank: n/an/a
South Shore Charter School
Charter School
82 Carleton Ave
Central Islip, NY 11722
(631) 864-7000
Central Islip, NY 11722
(631) 864-7000
Gr: K-2 | 268 students Minority enrollment: 97%
Frequently Asked Questions
What are the top-ranked public elementary schools in Central Islip, NY?
The top-ranked public elementary schools in Central Islip, NY include Francis J O'neill School, Marguerite L Mulvey School and Anthony Alfano Elementary School.
How many public elementary schools are located in Central Islip?
6 public elementary schools are located in Central Islip.
What is the racial composition of students in Central Islip?
Central Islip public elementary schools minority enrollment is 98% of the student body (majority Hispanic), which is more than the New York public elementary schools average of 62% (majority Hispanic).
Recent Articles
Media Literacy as a Core Skill: How to Tell if a School Teaches It Well
Learn how to evaluate whether a public school teaches media literacy effectively, from fact-checking and source evaluation to digital citizenship and critical thinking.
Screen Time, Paper Learning, and the New Back-to-Basics Debate
Explore why some public schools are reducing screen time, bringing back paper learning, and rethinking the balance between technology and traditional instruction.
Student Data, AI Tools, and Privacy: Questions to Ask Your District
Learn how public schools use AI, protect student data, and the key privacy questions every parent should ask their school district in 2026.