St. Marys High School (Top Ranked Private School for 2026-27)

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Quick Facts (2026-27)

Top Ranked MA School
Grades: 6-12
Enrollment: 517 students
Yearly Tuition: $21,100
Acceptance rate: 98%
Average class size: 22 students
Application Deadline: None / Rolling
Source: ✓Verified school update

School Rankings

St. Marys High School ranks among the top 20% of private schools in Massachusetts for:

School Facts

Religious Affiliation

Catholic

Grades Offered

Grades 6-12

Students By Grade

View Data

Distribution of Students By Grade
Grade	St. Marys High School
6	22
7	33
8	47
9	94
10	107
11	122
12	92

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Year Founded

1881

Student Body

Total Students

517 students

Student Body Type

Co-ed

% Students of Color

46%

State avg.: 31%

Academic Profile

Total Classroom Teachers

46 teachers

Student-Teacher Ratio

11:1

National avg.: 11:1

Average Class Size

22 students

Classroom Dress Code

Formal

Khaki pants and navy St. Mary

Number of AP Courses

8 courses

Advanced Courses

AP BiologyAP Computer Science

AP English CompositionAP English Literature

AP PsychologyAP Spanish

AP U.S. Government & PoliticsAP U.S. History

School Membership(s)School Assoc.

National Catholic Educational Association (NCEA)
State or regional independent school association

Tuition & Financial Aid

Admission Deadline

None / Rolling

Yearly Tuition Cost

$21,100

View national tuition avg.

Acceptance Rate

98%

National avg.: 82%

Application URL

Online Application

Sports

Total Sports Offered

16 sports

Sports

BaseballBasketball

CheeringCross Country

Track and FieldVolleyball

WeightliftingWinter Track

Colors

Navy Blue, Gold

School Mascot

Spartan

Extracurriculars

Total ExtracurricularsTotal Extra-curric.

12 extracurriculars

ExtracurricularsExtra-curric.

Club or Organization:

AmbassadorsCollege Bowl

FIRST RoboticsMock Trial

National Honor SocietyNational Junior Honor Society

Rachel's ChallengeScience League

Student Council

Arts and Music Programs:

ChorusDance Team

Theater Company

School Notes

St. Mary's is a Catholic, college-preparatory school developing students in grades 6-12 from more than 30 communities on Boston's North Shore.
Shaping authentic men and women of talent and faith.

Shaping authentic men and women of talent and faith. St. Mary's strives to form leaders who love God, work hard and are compassionate toward others. We enable our students to develop their intellectual, moral and physical talents to acquire a more perfect sense of individual responsibility, a correct use of freedom and a capacity for productive participation in society.

Our pillars for success:

CATHOLIC We provide faith-based education that promotes the values of community and service to others
EXCELLENCE We offer a quality college-preparatory education in a learning environment where students are held to rigorous academic standards
INTEGRITY We encourage students to participate in extracurricular activities to develop leadership, perseverance and collaborative excellence
RESPECT Our faculty recognizes the individuality of each student and work together to fully prepare students for future endeavors

Sample of notable school alumni/alumnae:
- Daniel Lobo - Graduate of Harvard University, PhD student in Sociology at UC Berkeley. -
- Joan Luise Hill - Co-author of books such as The Miracle Chase, owning a winery in Carmel Valley, CA. -

Source: Verified school update

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Frequently Asked Questions

How much does St. Marys High School cost?

St. Marys High School's tuition is approximately $21,100 for private students.

What is the acceptance rate of St. Marys High School?

The acceptance rate of St. Marys High School is 98%, which is higher than the national average of 71%.

Who are famous alumni from St. Marys High School?

St. Marys High School famous alumni include: Daniel Lobo - Graduate of Harvard University, PhD student in Sociology at UC Berkeley. and Joan Luise Hill - Co-author of books such as The Miracle Chase, owning a winery in Carmel Valley, CA..

What sports does St. Marys High School offer?

St. Marys High School offers 16 interscholastic sports: Baseball, Basketball, Cheering, Cross Country, Football, Golf, Ice Hockey, Lacrosse, Soccer, Softball, Swimming, Tennis, Track and Field, Volleyball, Weightlifting and Winter Track. St. Marys High School is ranked as one of the top 20% of private schools in Massachusetts for most sports offered.

What is St. Marys High School's ranking?

St. Marys High School ranks among the top 20% of private schools in Massachusetts for: Largest student body, Most sports offered and Oldest founding date.

When is the application deadline for St. Marys High School?

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

School Calendar

View the St. Marys High School yearly calendar below. Note key dates such as:

Event

Date

Columbus Day - School CLOSED

October 12, 2026 (Monday)

Observance of Veterans' Day - School CLOSED

November 11, 2026 (Wednesday)

CLOSED - Thanksgiving Break

November 27, 2026 (Friday)

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Did You Know?

The average private school tuition in Essex County, MA is $26,952 for elementary schools and $45,503 for high schools (read more about average private school tuition across the country).

The average acceptance rate in Essex County, MA is 74% (read more about average acceptance rates across the country).