For the 2025-26 school year, there are 6 public elementary schools serving 3,118 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 61% (majority Hispanic).
Best ÎÛÎÛÂþ» Elementary Schools in Central Islip, NY (2025-26)
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 | 592 students Student-teacher ratio: 13:1 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 | 532 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 | 497 students Student-teacher ratio: 13:1 Minority enrollment: 97%
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 | 963 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 | 534 students Student-teacher ratio: 12:1 Minority enrollment: 99%
Rank: n/an/a
South Shore Charter School
Charter School
25 Church St
Central Islip, NY 11722
(631) 864-7000
Central Islip, NY 11722
(631) 864-7000
Gr: K-1
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 61% (majority Hispanic).
Recent Articles

Texas Schools Enrollment Trends & Policy in 2025
Latest data and policy changes on Texas public school enrollment growth, funding, and virtual education in 2025.

Financial Aid & Hidden Costs in ÎÛÎÛÂþ» Schools
Learn about financial aid and hidden costs in public schools. Discover what parents should budget for beyond tuition-free education.

NYC Schools Still Most Segregated in 2025
Despite reforms, New York City schools remain the most segregated in the U.S. in 2025. Here’s what parents and educators need to know.