Mount Saint John (MSJ) is a residential treatment program that provides comprehensive and integrated treatment services to adolescent boys and young men who are not able to function in their home community due to combinations of behavioral, emotional, family and educational problems.
The staff and board of Mount Saint John are committed to providing a treatment program to meet the evolving and changing needs of the times and of the boys who come into our care.
At Mount Saint John, we dedicate each day to building a culture of excellence by creating a culture of caring.
Quick Facts (2026)
- School Type: Special Education School
- Grades: 9-12
- Enrollment: 39 students
- Application Deadline: None / Rolling
- Source: National Center for Education Statistics (NCES)
Top Rankings
Mt. Saint John ranks among the top 20% of private schools in Connecticut for:
Category
Attribute
School Overview
School Type
Grades Offered
Grades 9-12
Student Body
Total Students
39 students
Student Body Type
% Students of Color
88%
State avg.: 31%
Students by Grade
Academics and Faculty
Total Classroom Teachers
7 teachers
Student-Teacher Ratio
6:1
National avg.: 13:1
Tuition and Acceptance Rate
Admission Deadline
None / Rolling
Source: National Center for Education Statistics (NCES)
Frequently Asked Questions
When is the application deadline for Mt. Saint John?
The application deadline for Mt. Saint John is rolling (applications are reviewed as they are received year-round).
In what neighborhood is Mt. Saint John located?
Mt. Saint John is located in the Deep River Center neighborhood of Deep River, CT.
Related Schools
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People that viewed Mt. Saint John also viewed these schools: The Oxford Academy and Brunswick School.
The nearest high school and elementary school to Mt. Saint John is Franklin Academy (3.1 miles away)
The nearest preschool is Montessori Circle Of Friends (3.0 miles away)
Show me:
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School
Location
Miles
Quick Facts
1393 Boston Post Road
Westbrook, CT 06498
(860) 399-6247
Westbrook, CT 06498
(860) 399-6247
7.8 miles
Gr: 8-12 | 48 students Avg. class size: 1 student Sports: 8 | Extracurrculars: 13 Tuition & acceptance rate listed
Brunswick School![Brunswick School Photo - Middle School Campus on King Street]( "Brunswick School Photo - Middle School Campus on King Street")
All-boys
100 Maher Avenue
Greenwich, CT 06830
(203) 625-5800
Greenwich, CT 06830
(203) 625-5800
67 miles
Gr: PK-12 | 1,046 student Avg. class size: 11 students Sports: 20 | Extracurrculars: 14 Tuition & acceptance rate listed
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