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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 (2025-26)
Grades: 9-12
Enrollment: 271 students
Yearly Tuition: $7,985
Application Deadline: None / Rolling
Source: National Center for Education Statistics (NCES)
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)
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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Quick Facts (2025-26)
Grades: 9-12
Enrollment: 271 students
Yearly Tuition: $7,985
Application Deadline: None / Rolling
Source: National Center for Education Statistics (NCES)
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Did You Know?
The average private school tuition in Saint Louis, MO is $16,758 for elementary schools and $20,703 for high schools (read more about average private school tuition across the country).
