St. Mary's School serves 153 students in grades Prekindergarten-8, is a member of the National Catholic Educational Association (NCEA).
The student:teacher of St. Mary's School is 17:1 and the school's religious affiliation is Catholic.
Quick Stats (2025)
- Grades: Prekindergarten-8
- Enrollment: 153 students
- Yearly Tuition: $5,209
- Average class size: 10 students
- Application Deadline: None / Rolling
- Source: Verified school update
Top Rankings
St. Mary's School ranks among the top 20% of private schools in Massachusetts for:
Category
Attribute
Affordability
School Overview
School Membership(s)School Assoc.
Religious Affiliation
Grades Offered
Grades Prekindergarten-8
First Day of School
Fri. Aug 1, 2025
Last Day of School
Mon. Jun 1, 2026
Student Body
Total Students
153 students
Student Body Type
Co-ed
% Students of Color
3%
State avg.: 29%
Students by Grade

Academics and Faculty
Total Classroom Teachers
9 teachers
Student : Teacher Ratio
17:1
National avg.: 13:1
Average Class Size
10 students
Tuition and Acceptance Rate
Admission Deadline
None / Rolling
Yearly Tuition Cost
Average Financial Aid Grant
$600
Admissions Director
Jennifer Masten
Application URL
Source: Verified school update
Frequently Asked Questions
How much does St. Mary's School cost?
St. Mary's School's tuition is approximately $5,209 for private students.
When is the application deadline for St. Mary's School?
The application deadline for St. Mary's School is rolling (applications are reviewed as they are received year-round).
School Reviews
Endorse St. Mary's School. Endorsements should be a few sentences in length. Please include any comments on:
- Quality of academic programs, teachers, and facilities
- Availability of music, art, sports and other extracurricular activities
- Academic or athletic awards
Recent Articles

Is It Easier to Land a Private School Job When You're Already Employed?
Is it easier to land a private school job when you're already employed? This article breaks down employer biases, networking advantages, and negotiation leverage—plus the latest hiring trends in independent schools. If you’re considering a move, here’s how to maximize your position.

How to Secure a Private School Job When You're Unemployed Without the Stigma
Finding a private school job while unemployed can be tough, but it doesn't have to hold you back. This article breaks down networking strategies, ways to stand out, and smart approaches to keep your confidence strong. Learn how to turn setbacks into strengths and secure the right opportunity—without the stigma.

The Private School Job Hunt: Insider Tips for Employed & Unemployed Educators
Navigating the private school job market? Whether you're employed or unemployed, the right strategy can make all the difference. This article breaks down essential steps to keep your resume sharp, expand your network, and stay visible in the education community. Learn insider tips to position yourself for success in private schools.