St. Mary's High School (2026-27 Profile)

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About the School

St. Mary's is a Catholic high school rooted in the Marianist tradition.
Each person is seen as a child of God with gifts that will be called forth.
This community is a place where self actualization, diversity and life-long learning are encouraged.
St. Mary's is a place where the whole person can grow in the love of God and each other.
This Marianist community is dedicated to developing responsible young men who are prepared to live as contributing and successful members of society who witness Jesus Christ to the world.

Quick Facts (2026-27)

Grades: 9-12
Enrollment: 271 students
Yearly Tuition: $7,985
Application Deadline: None / Rolling
Source: National Center for Education Statistics (NCES)

School Rankings

St. Mary's High School ranks among the top 20% of private schools in Missouri for:

School Facts

Religious Affiliation

Catholic

Grades Offered

Grades 9-12

Students By Grade

View Data

Distribution of Students By Grade
Grade	St. Mary's High School
9	72
10	64
11	63
12	72

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Year Founded

1931

School Calendar

Student Body

Total Students

271 students

Student Body Type

All-boys

% Students of Color

63%

State avg.: 21%

Academic Profile

Total Classroom Teachers

25 teachers

Student-Teacher Ratio

11:1

National avg.:

Classroom Dress Code

Casual

List of Courses Offered

Tuition & Financial Aid

Admission Deadline

None / Rolling

Yearly Tuition Cost

$7,985

View national tuition avg.

Tuition Notes

55% of our students receive tuition assistance.

% on Financial Aid

55%

Admissions Director

Katie Albin

Application URL

Sports

Total Sports Offered

14 sports

Sports

TennisTrack and Field

VolleyballWrestling

Colors

White, Green

Extracurriculars

Total ExtracurricularsTotal Extra-curric.

3 extracurriculars

ExtracurricularsExtra-curric.

Beta Chi PiMu Alpha Theta

National Honor Society

School Notes

St. Mary's Mission is:
To help each young man discover that life as a Christian is a journey that must be rooted in God
To develop in the young man a deep sense of the goodness, self-worth and the dignity of every person
To maintain a community where all involved in the students' formation collaborate to create a climate of cooperation, respect, openness and trust
To provide a comprehensive program of learning which challenges and motivates each student to reach his fullest potential To instruct each young man in the Marianist spirit
Core Values St. Mary's Men are: Embodied in Faith Empowered by Excellence Embraced as Family Enlightened through Service Transformed for Life

Source: National Center for Education Statistics (NCES)

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Frequently Asked Questions

How much does St. Mary's High School cost?

St. Mary's High School's tuition is approximately $7,985 for private students.

What sports does St. Mary's High School offer?

St. Mary's High School offers 14 interscholastic sports: Baseball, Basketball, Cross Country, Cycling, Equestrian, Football, Golf, Ice Hockey, Lacrosse, Soccer, Tennis, Track and Field, Volleyball and Wrestling. St. Mary's High School is ranked as one of the top 20% of private schools in Missouri for most sports offered.

When is the application deadline for St. Mary's High School?

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

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Did You Know?

The average private school tuition in Saint Louis, MO is $17,419 for elementary schools and $21,551 for high schools (read more about average private school tuition across the country).

The average acceptance rate in Saint Louis, MO is 81% (read more about average acceptance rates across the country).