St. John The Baptist Diocesan High School Photo - SJB student produced Stained Glass in front lobby

Best West Islip Private High Schools (2025-26)

For the 2025-26 school year, there is 1 private high school serving 1,200 students in West Islip, NY.
The top-ranked private high school in West Islip, NY is St. John The Baptist Diocesan High School.
The average acceptance rate is 75%, which is higher than the New York private high school average acceptance rate of 73%.
100% of private high schools in West Islip, NY are religiously affiliated (most commonly Catholic).

Top-Ranked West Islip Private High Schools (2025-26)

School
Location
Quick Facts
1170 Montauk Highway
West Islip, NY 11795
(631) 587-8000
Gr: 9-12 | 1,200 student Avg. class size: 28 students Sports: 28 | Extracurrculars: 2 Tuition & acceptance rate listed

Frequently Asked Questions

What are the top-ranked private high schools in West Islip, NY?
The top-ranked private high schools in West Islip, NY is St. John The Baptist Diocesan High School.
How many private high schools are located in West Islip?
1 private high schools are located in West Islip.
What percentage of private high schools are religiously affiliated in West Islip?
100% of private high schools in West Islip are religiously affiliated (most commonly Catholic).

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