Private School Review - Established 2003

East Islip Private Schools

For the 2026-27 school year, there are 2 private schools serving 501 students in East Islip, NY, 39% of all K-12 students in East Islip, NY are educated in private schools versus public schools (compared to the NY state average of 14%).
The average acceptance rate is 80%, which is higher than the New York private school average acceptance rate of 79%.
50% of private schools in East Islip, NY are religiously affiliated (most commonly Catholic).

Quick Facts (26-27)

Quick Facts (26-27)

Top Ranked East Islip Private Schools (2026-27)

Harrow International School New York Photo
Harrow International School New York
Gr: 6-12
Avg. class size: 8 students
Sports: 11
500 Montauk Highway
East Islip, NY 11769
(631) 869-1572
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Map of St. Mary School
St. Mary School
Gr: PK-8 | 501 students
Catholic
16 Harrison Ave
East Islip, NY 11730
(631) 581-3423
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[+] Show Closed Private Schools in East Islip, New York

East Islip, New York Private Schools (Closed)

Chatterbox Day School Photo
Chatterbox Day School
Gr: PK-1 | 61 students
Daycare / Preschool
52 Hawthorne Ave
East Islip, NY 11730
(631) 581-4756
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Map of The Hewlett School
The Hewlett School
Gr: PK-12 | 63 students
74 Suffolk Lane
East Islip, NY 11730
(631) 581-1035
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East Islip, NY Private School Trends

2
Private Schools
501
Students
$61,700
Avg. Tuition
8
Avg. Class Size
32%
Students of Color
19:1
Student-Teacher Ratio
Download town snapshot: CSV | XML | JSON Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission.
Enrollment & Diversity
Category
This Town (East Islip)
This State (NY)
# Schools
2 Schools
1,795 Schools
# Students
501 Students
424,657 Students
% Students of Color
32%
39%
0.67
0.59
Show more data/charts: racial breakdown
# American Indian Students
1 Student
949 Students
% American Indian Students
<1%
<1%
# Asian Students
3 Students
18,397 Students
% Asian Students
1%
5%
# Hispanic Students
64 Students
33,759 Students
% Hispanic Students
13%
8%
# Black Students
36 Students
33,696 Students
% Black Students
7%
8%
# White Students
226 Students
252,994 Students
% White Students
45%
60%
# Hawaiian Students
1 Student
538 Students
% Hawaiian Students
<1%
<1%
# Others Students
170 Students
81,171 Students
% of Others Students
34%
19%
All Ethnic Groups
Academics
# Teachers
42 Teachers
41,688 Teachers
Average Student-Teacher Ratio
19:1
10:1
% Average Faculty w/Advanced Degree
90%
75%
Average Class Size
8 students
15 students
Tuition & Aid
Average Yearly Tuition Cost
$61,700
$21,768
Admissions & Athletics
Average Acceptance Rate
80%
79%
Average Number of Sports
11 sports
7 sports

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?
39% of all K-12 students in East Islip are educated in private schools (compared to the NY state average of 14%).
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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