For the 2025-26 school year, there are 2 private elementary schools serving 501 students in East Islip, NY.
The top ranked private elementary schools in East Islip, NY include Harrow International School New York and St. Mary School.
The average acceptance rate is 53%, which is lower than the New York private elementary school average acceptance rate of 75%.
50% of private elementary schools in East Islip, NY are religiously affiliated (most commonly Catholic).
Top Ranked East Islip Private Elementary Schools (2025-26)
School
Location
Quick Facts
500 Montauk Highway
East Islip, NY 11769
(631) 869-1572
East Islip, NY 11769
(631) 869-1572
Gr: 6-12 Avg. class size: 8 students Sports: 11 Tuition & acceptance rate listed
St. Mary School
(Catholic)
16 Harrison Ave
East Islip, NY 11730
(631) 581-3423
East Islip, NY 11730
(631) 581-3423
Gr: PK-8 | 501 students Tuition & acceptance rate listed
East Islip, New York Private Schools (Closed)
School
Location
Quick Facts
Chatterbox Day School (Closed 2015)
Daycare / Preschool
52 Hawthorne Ave
East Islip, NY 11730
(631) 581-4756
East Islip, NY 11730
(631) 581-4756
Gr: PK-1 | 61 students
74 Suffolk Lane
East Islip, NY 11730
(631) 581-1035
East Islip, NY 11730
(631) 581-1035
Gr: PK-12 | 63 students
Frequently Asked Questions
What are the top ranked private elementary schools in East Islip, NY?
The top ranked private elementary schools in East Islip, NY include Harrow International School New York and St. Mary School.
How many private elementary schools are located in East Islip?
2 private elementary schools are located in East Islip.
What percentage of private elementary schools are religiously affiliated in East Islip?
50% of private elementary schools in East Islip are religiously affiliated (most commonly Catholic).
Recent Articles
Understanding Private School Tuition in 2025
Explore updated private school tuition trends, costs, policy shifts, and financial planning insights for 2025 families considering private education.
Private School Curriculum in 2025: Key Courses and Trends
Explore what private schools are teaching in 2025, from core subjects and AI to global studies and tuition trends shaping private education today.
Sliding-Scale & Income-Based Tuition Models for Private Schools
Learn how sliding-scale and income-based tuition models work and whether they are right for your family. Compare costs, eligibility, and school options.