St. Mary's School

St. Mary's School is a Catholic elementary school which serves children from Kindergarten1 (4 year olds) through grade eight.
St. Mary's School offers a unique curriculum that attempts to develop each student spiritually, academically, and socially to his/her fullest potential.
St. Mary's School is dedicated to enhancing in each student a strong sense of Catholic values and enriching each child academically in a safe, caring environment.
St. Mary's Catholic School strives for quality education within a Christian atmosphere.
Its distinctive curriculum centers on worship as a basis to all life; a moral and ethical training that calls for one's decisions and actions; and the building of a society in which justice and peace are the foundations.
The education program of each child, though similar because of a common nature; nevertheless, differs according to the individual needs, personality, and achievement.

Quick Facts (2026)

  • Top-Ranked MA School
  • Grades: Prekindergarten-8
  • Enrollment: 258 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
Student Body

School Overview

Religious Affiliation
Grades Offered
Grades Prekindergarten-8
School Calendar

Student Body

Total Students
258 students
Student Body Type
Co-ed
% Students of Color
18%
State avg.: 31%
Students by Grade

Academics and Faculty

Total Classroom Teachers
14 teachers
Student-Teacher Ratio
18:1
National avg.: 11:1

Tuition and Acceptance Rate

Admission Deadline
None / Rolling

School Notes

  • St. Mary's School is a Catholic elementary school which serves children from Kindergarten1 (4 year olds) through grade eight. St. Mary's School offers a unique curriculum that attempts to develop each student spiritually, academically, and socially to his/her fullest potential. St. Mary's School is dedicated to enhancing in each student a strong sense of Catholic values and enriching each child academically in a safe, caring environment. St. Mary's Catholic School strives for quality education within a Christian atmosphere. Its distinctive curriculum centers on worship as a basis to all life; a moral and ethical training that calls for one's decisions and actions; and the building of a society in which justice and peace are the foundations. The education program of each child, though similar because of a common nature; nevertheless, differs according to the individual needs, personality, and achievement.
Source: Verified school update

Frequently Asked Questions

What is St. Mary's School's ranking?
St. Mary's School ranks among the top 20% of private schools in Massachusetts for: Largest student body.
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

5  
Something we didn''t fully appreciate until after our oldest son graduated was the academic rigor of St. Mary''s. He was accepted into Honors Programs at multiple private preparatory high schools and received generous merit scholarships. We learned this was a credit to St. Mary''s strong reputation. One admissions officer mentioned she had also gone to St. Mary''s. We routinely see fellow SMS alumni named on his high school''s Awards and Honor Rolls.St. Mary''s has high standardized test scores - even though faculty enjoy broad freedom to design their classroom experience and deliver curriculum as they choose. It''s the best of both worlds.We also came to appreciate the simple brilliance of the upper school integration - the teachers instruct across grades 6th-8th so they get to know your child over multiple school years as a team. When they write letters of recommendation, they''ve seen a 6th grader with late homework transform into a diligent 8th grader who can keep up with anything.
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Quick Facts (2026)

  • Top-Ranked MA School
  • Grades: Prekindergarten-8
  • Enrollment: 258 students
  • Application Deadline: None / Rolling
  • Source: Verified school update

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Did You Know?

The average private school tuition in Middlesex County, MA is $28,884 for elementary schools and $49,193 for high schools (read more about average private school tuition across the country).
The average acceptance rate in Middlesex County, MA is 61% (read more about average acceptance rates across the country).

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