For the 2025 school year, there are 2 private schools serving 501 students in East Islip, NY (there are 2 public schools, serving 764 public students). 40% of all K-12 students in East Islip, NY are educated in private schools (compared to the NY state average of 15%).
The top ranked private schools in East Islip, NY include Harrow International School New York and St. Mary School.
50% of private schools in East Islip, NY are religiously affiliated (most commonly Catholic).
Top Ranked East Islip Private Schools (2025)
School
Location
Grades
Students
500 Montauk Highway
East Islip, NY 11769
(763) 807-6929
East Islip, NY 11769
(763) 807-6929
Grades: 6-12
| n/a students
St. Mary School
(Catholic)
16 Harrison Ave
East Islip, NY 11730
(631) 581-3423
East Islip, NY 11730
(631) 581-3423
Grades: PK-8
| 501 students
East Islip, New York Private Schools (Closed)
School
Location
Grades
Students
Chatterbox Day School (Closed 2015)
Daycare / Preschool
52 Hawthorne Ave
East Islip, NY 11730
(631) 581-4756
East Islip, NY 11730
(631) 581-4756
Grades: PK-1
| 61 students
74 Suffolk Lane
East Islip, NY 11730
(631) 581-1035
East Islip, NY 11730
(631) 581-1035
Grades: PK-12
| 63 students
Frequently Asked Questions
What are the top ranked private schools in East Islip, NY?
The top ranked private schools in East Islip, NY include Harrow International School New York and St. Mary School.
How many private schools are located in East Islip?
2 private schools are located in East Islip.
What percentage of students in East Islip go to private school?
40% of all K-12 students in East Islip are educated in private schools (compared to the NY state average of 15%).
What percentage of private schools are religiously affiliated in East Islip?
50% of private schools in East Islip are religiously affiliated (most commonly Catholic).
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