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St. Mary School

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Tel: (631) 581-3423

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St. Mary School was established in 1914 by the School Sisters of Notre Dame.

Now in our ninetieth year, we continue to provide challenging academic programs rooted in the Catholic tradition for children in Nursery (3 year olds) through Grade 8.

The dedication and strong commitment of the administration, faculty, staff, clergy, and parents to continued growth and quality Catholic education permeates the strong family – centered school community.

Centered in the Word of God and the gift of Jesus in our midst, the mission of St.

Mary School is to educate the whole child. The school's role in leading students toward a life of Gospel values is to work in partnership with parents to foster academic, spiritual, and moral development.

Quick Facts (2026)

Top-Ranked NY School
Grades: Prekindergarten-8
Enrollment: 501 students
Yearly Tuition: $25,000
Acceptance rate: 25%
Application Deadline: None / Rolling
Source: National Center for Education Statistics (NCES)

Top Rankings

St. Mary School ranks among the top 20% of private schools in New York for:

School Overview

School Membership(s)School Assoc.

National Catholic Educational Association (NCEA)

Religious Affiliation

Catholic

Grades Offered

Grades Prekindergarten-8

School Calendar

View School Calendar

Student Body

Total Students

501 students

Student Body Type

Co-ed

% Students of Color

32%

State avg.: 39%

Students by Grade

Academics and Faculty

Total Classroom Teachers

27 teachers

Student-Teacher Ratio

19:1

National avg.: 11:1

Tuition and Acceptance Rate

Admission Deadline

None / Rolling

Yearly Tuition Cost

$25,000

View national tuition avg.

Acceptance Rate

25%

National avg.: 82%

School Notes

St. Mary School was established in 1914 by the School Sisters of Notre Dame. Now in our ninetieth year, we continue to provide challenging academic programs rooted in the Catholic tradition for children in Nursery (3 year olds) through Grade 8. The dedication and strong commitment of the administration, faculty, staff, clergy, and parents to continued growth and quality Catholic education permeates the strong family – centered school community. Centered in the Word of God and the gift of Jesus in our midst, the mission of St. Mary School is to educate the whole child. The school's role in leading students toward a life of Gospel values is to work in partnership with parents to foster academic, spiritual, and moral development.

Sample of notable school alumni/alumnae:
- Brendan and Tyler - Class of 2023
- James and Emma - Class of 2023

Source: National Center for Education Statistics (NCES)

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Frequently Asked Questions

How much does St. Mary School cost?

St. Mary School's tuition is approximately $25,000 for private students.

What is the acceptance rate of St. Mary School?

The acceptance rate of St. Mary School is 25%, which is lower than the national average of 75%. St. Mary School's acceptance rate is ranked among the top private schools in New York with low acceptance rates.

Who are famous alumni from St. Mary School?

St. Mary School famous alumni include: Brendan and Tyler - Class of 2023 and James and Emma - Class of 2023.

What is St. Mary School's ranking?

St. Mary School ranks among the top 20% of private schools in New York for: Lowest average acceptance rates and Largest student body.

When is the application deadline for St. Mary School?

The application deadline for St. Mary School is rolling (applications are reviewed as they are received year-round).

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Quick Facts (2026)

Top-Ranked NY School
Grades: Prekindergarten-8
Enrollment: 501 students
Yearly Tuition: $25,000
Acceptance rate: 25%
Application Deadline: None / Rolling
Source: National Center for Education Statistics (NCES)

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Did You Know?

The average private school tuition in Suffolk County, NY is $20,396 for elementary schools and $26,278 for high schools (read more about average private school tuition across the country).

The average acceptance rate in Suffolk County, NY is 73% (read more about average acceptance rates across the country).