For the 2026 school year, there are 2 private schools serving 1,438 students in West Islip, NY (there are , serving 3,816 public students). 27% of all K-12 students in West Islip, NY are educated in private schools (compared to the NY state average of 15%).
The top-ranked private school in West Islip, NY is St. John The Baptist Diocesan High School.
The average acceptance rate is 75%, which is lower than the New York private school average acceptance rate of 76%.
50% of private schools in West Islip, NY are religiously affiliated (most commonly Catholic).
Top-Ranked West Islip 草榴社区 Schools (2026)
School
Location
Quick Facts
339 Snedecor Ave
West Islip, NY 11795
(631) 358-5035
West Islip, NY 11795
(631) 358-5035
Gr: NS-8 | 238 students Sports: 4 | Extracurrculars: 26 Tuition listed
1170 Montauk Highway
West Islip, NY 11795
(631) 587-8000
West Islip, NY 11795
(631) 587-8000
Gr: 9-12 | 1,200 students Avg. class size: 28 students Sports: 28 | Extracurrculars: 2 Tuition & acceptance rate listed
Overview
This Town (West Islip)
This State (NY)
# Schools
2 Schools
Student Body:
# Students
1,438 Students
424,309 Students
% Average Students of Color
28%
39%
Academics and Faculty:
# Teachers
128 Teachers
41,517 Teachers
Average Student-Teacher Ratio
11:1
10:1
% Average Faculty w/Advanced Degree
95%
76%
Average Class Size
28 students
15 students
Average Number of AP Courses
18 courses
11 courses
Average SAT score
1250
(Out of 1600)
1253
Average ACT score
28
(Out of 36)
28
Tuition and Acceptance Rate:
Average Yearly Tuition Cost
$16,075
$22,435
Average Summer Program Cost
$2,777
$2,359
Average % on Financial Aid
10%
33%
Average Financial Aid Grant
$2,275
$9,892
Average Acceptance Rate
75%
76%
Students by Ethnicity:
Diversity Score
0.47
0.59
# American Indian Students
2 Students
949 Students
% American Indian Students
n/a
n/a
# Asian Students
122 Students
18,397 Students
% Asian Students
8%
5%
# Hispanic Students
170 Students
33,759 Students
% Hispanic Students
11%
8%
# Black Students
90 Students
33,696 Students
% Black Students
6%
8%
# White Students
1,110 Students
252,994 Students
% White Students
72%
60%
# Hawaiian Students
n/a
538 Students
% Hawaiian Students
n/a
n/a
# Two or more races Students
n/a
n/a
% of Two or more races Students
n/a
n/a
# Others Students
52 Students
81,467 Students
% of Others Students
3%
19%
All Ethnic Groups
Extracurriculars and Sports:
Average Number of Extracurriculars
14 extracurriculars
13 extracurriculars
Average Number of Sports
16 sports
7 sports
Frequently Asked Questions
What are the top-ranked private schools in West Islip, NY?
The top-ranked private schools in West Islip, NY is St. John The Baptist Diocesan High School.
How many private schools are located in West Islip?
2 private schools are located in West Islip.
What percentage of students in West Islip go to private school?
27% of all K-12 students in West Islip are educated in private schools (compared to the NY state average of 15%).
What percentage of private schools are religiously affiliated in West Islip?
50% of private schools in West Islip are religiously affiliated (most commonly Catholic).
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