St. John The Baptist Diocesan High School

Founded in 1966, St. John the Baptist Diocesan High School is a private, co-educational, Catholic college preparatory high school located in West Islip, New York, minutes from the Great South Bay in Suffolk County.
We offer a challenging academic program featuring over 30 Advanced Placement and Honors courses and over 17 College Credit courses through unique partnerships with St.
John's University, Molloy University, and Adelphi University. Our Engineering Program through R.I.T.
also offers the opportunity for college credit as early as freshman year! We also offer a wide array of Visual Art and Performing Arts courses ranging from Chorus, Band, Orchestra, Dance instruction to Studio in Art and Ceramics.
St. John the Baptist has captured over 192 Athletic Championships in 55 years.
We offer boys' and girls' Varsity and Junior Varsity levels in over 30 different team sports.
And with over 35 Clubs and Activities running everyday after school, we are proud to say there is something for everyone at SJB!.

Quick Stats (2024)

  • Top Ranked NY School
  • Grades: 9-12
  • Enrollment: 1,200 students
  • Yearly Tuition: $12,800
  • Acceptance rate: 75%
  • Average class size: 28 students
  • Application Deadline: None / Rolling
  • Source: Verified school update

Top Rankings

St. John The Baptist Diocesan High School ranks among the top 20% of private schools in New York for:

School Overview

Religious Affiliation
Grades Offered
Grades 9-12
ADD/ADHD Support
Yes
Learning Difference Programs
Yes
Learning Programs Supported
Only for Students with an IEP/IESP
Year Founded
1966
Summer School Offered
Yes

Student Body

Total Students
1,200 students
Student Body Type
Co-ed
% Students of Color
25%
State avg.: 40%
Students by Grade
St. John The Baptist Diocesan High School Student By Grade

Academics and Faculty

Total Classroom Teachers
94 teachers
Student : Teacher Ratio
13:1
National avg.: 13:1
% Faculty w/Advanced Degree
99%
Average Class Size
28 students
Number of AP Courses
18 courses
List of Courses Offered
Advanced Courses
AP Biology, AP Calculus AB, AP Chemistry, AP Computer Science A, AP Computer Science Principles, AP Economics, AP English Language & Composition, AP English Literature & Composition, AP Environmental Science, AP European History, AP Music Theory, AP Physics, AP Psychology, AP Research, AP Seminar, AP Statistics, AP US Government & Politics, AP US History & Government
Average SAT score
1250
Average ACT score
28
Matriculation DataMatric. Data
Classroom Dress Code

Tuition and Acceptance Rate

Admission Deadline
None / Rolling
Yearly Tuition Cost
Tuition Notes
Registration fee is $850 which covers issued Chromebook, Yearbook, and Lab fees
% on Financial Aid
14%
Average Financial Aid Grant
$1,000
Acceptance Rate
75%
National avg.: 85%
Admissions Director
Mr. Robert Sventora
Admissions Associate
Mrs. Phyllis D'Antona

Sports

Extracurriculars

Total ExtracurricularsTotal Extra-curric.
2 extracurriculars
ExtracurricularsExtra-curric.
Club or Organization:
https://stjohnthebaptistdhs.net/clubsandactivities

Arts and Music Programs:
https://stjohnthebaptistdhs.net/fine-performing-arts
Source: Verified school update

Frequently Asked Questions

How much does St. John The Baptist Diocesan High School cost?
St. John The Baptist Diocesan High School's tuition is approximately $12,800 for private students.
What schools are St. John The Baptist Diocesan High School often compared to?
St. John The Baptist Diocesan High Schoolis often viewed alongside schools like St. Anthony's High School by visitors of our site.
What is the acceptance rate of St. John The Baptist Diocesan High School?
The acceptance rate of St. John The Baptist Diocesan High School is 75%, which is lower than the national average of 79%.
What sports does St. John The Baptist Diocesan High School offer?
St. John The Baptist Diocesan High School offers 27 interscholastic sports: Badminton, Baseball, Basketball, Bowling, Cheering, Crew, Cross Country, Dance, Diving, Equestrian, Field Hockey, Football, Golf, Gymnastics, Ice Hockey, Lacrosse, Paddle Tennis, Sailing, Soccer, Softball, Swimming, Tennis, Track and Field, Ultimate Frisbee, Volleyball, Winter Track and Wrestling. St. John The Baptist Diocesan High School is ranked as one of the top 20% of private schools in New York for most sports offered.
What is St. John The Baptist Diocesan High School's ranking?
St. John The Baptist Diocesan High School ranks among the top 20% of private schools in New York for: Highest percentage of faculty with advanced degrees, Largest student body, Most AP courses offered and Most sports offered.
When is the application deadline for St. John The Baptist Diocesan High School?
The application deadline for St. John The Baptist Diocesan High School is rolling (applications are reviewed as they are received year-round).

School Reviews

  5.00 out of 5  (3 reviews)
5  
good school.
- Posted by
5  
I am a graduate of the class of 2018 and I can honestly say that my 4 years spent as an SJB cougar were the best 4 years of my life. This school was my second home and being in my second year of college I still say that I wish I could have spent more time at St. John's. SJB had such a family feel that I never experienced. The friends I had made here are friends that I hope to keep lifelong. The quality of education I had also received here was also amazing thanks to all the faculty in this school. I had graduated on honor roll and was not only accepted to all the colleges I had applied to, but received scholarships to all of them as well. I truly recommend SJB to anyone who considered a Catholic high school education. SJB 24/7
- Posted by
5  
It's not just a school but a community- School administartors know all the kids by name and they are very interactive with all the students whether it be for academics , sports clubs etc. Also has other sports teams that that were not listed. Alot of Cougar pride
- Posted by

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Quick Stats (2024)

  • Top Ranked NY School
  • Grades: 9-12
  • Enrollment: 1,200 students
  • Yearly Tuition: $12,800
  • Acceptance rate: 75%
  • Average class size: 28 students
  • Application Deadline: None / Rolling
  • Source: Verified school update

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Did You Know?

The average private school tuition in Suffolk County, NY is $20,791 for elementary schools and $29,814 for high schools (read more about average private school tuition across the country).
The average acceptance rate in Suffolk County, NY is 82% (read more about average acceptance rates across the country).

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