School Profile

School Information

St. Mary’s High School
Main Office: (314) 481-8400
Main Office Fax: (314) 481-3670
4701 South Grand Blvd
Saint Louis, MO 63111

President: Michael F. England
Principal: Kevin Hacker
Associate Principal: Valerie Todd

Campus Hours: 6:50 a.m.-4:00 p.m. 
Office Hours: 7:30 a.m.-3:30 p.m.
Class Times: 8:00 a.m.-2:45 p.m.


Spanning 27 acres, St. Mary's High School is located in the Dutchtown Neighborhood of South St. Louis. Over 60% of our students live within a 5 mile radius of the high school in the Dutchtown, Tower Grove Park, Carondelet and Bevo Mill neighborhoods. In 1931, St. Mary's High School opened to serve working class families who might not otherwise be able to afford quality Catholic education for their sons. Nearly 80 years later, St. Mary's is known as one of the St. Louis community's most important secondary educational institutions.


St. Mary's High School is a comprehensive four-year Archdiocesan Catholic high school enrolling roughly 350 students in grades 9 through 12. St. Mary's is accredited by the North Central Association: Commission on Accreditation and School Improvement. North Central Accreditation Seals are recognized across the United States and around the world.


St. Mary's academic program is organized on a rotating block schedule (A/B days). On A days students take four 75 minute classes. On B days students take four different 75 minute classes.  Every day (except Wednesdays) the last class is followed by an hour Academic Lab, a time in which students meet with their adviser, listen to school announcements, meet teachers for one on one help, work on homework with the support of their adviser and/or meet with club moderators. Classes begin at 8:00 a.m. and end at 2:45 p.m. However, students begin classes at 10:00 a.m. most Wednesdays because faculty participate in weekly professional learning teams.

To graduate from St. Mary's High School a student must earn 29 units of credit. St. Mary's offers an array of college credit courses and honors courses are available at every grade level. The curriculum encourages students to explore their minds and grow not only academically but personally, spiritually and athletically with a focus on the current brain research on the male adolescent brain and incorporating a differentiated approach to instruction to reach and teach every student that enters their doors.


At St. Mary's GPA is weighted for Class Rank only. All Honors Courses and College Credit Courses are also weighted for Class Rank only as follows: Honors- .5 additional credit/College Credit- 1.0 additional credit. For more information, see our Student Handbook.

Awards and Distinctions

St. Mary's High School received extraordinary recognition in October 2010 during our accreditation visit. Four commendations were given to St. Mary's in the following areas:  Quality Education, Leadership, Mission, Vision and Core Values and Professional Development for Teaching and Learning.

In the last 3 years alone, several faculty members have been recognized for their work in the classroom and are featured in nationally recognized education books regarding how they have implemented high yield strategies resulting in gains in achievement.

For more information on student accomplishments, awards and distinctions, please click here.

A Marianist Education

Catholic High School serving young men in the Marianist tradition.

Characteristics of Marianist Education (CME):

  • Educate for formation in faith
  • Provide an integral, quality education
  • Educate in family spirit
  • Educate for service, justice and peace
  • Educate for adaptation and change

Become A Dragon

To arrange a visit or to receive more information about St. Mary's High School, please complete the Online Inquiry.

Take the first steps to become a dragon!

Quick Facts

  • St. Mary’s requires 29 credits for graduation and offers 49 hours of college credit.
  • Honors courses are available at all grade levels.
  • The student teacher ratio is 12/1.
  • Students have an opportunity to meet one on one with teachers 4 days a week during Academic Lab.
  • St. Mary’s teachers provide free tutoring every day for an hour before and after school in the MRC.
  • The faculty meets in weekly professional learning teams (PLT’s).
  • St. Mary’s college acceptance rate is 100%.
  • St. Mary’s students have access to real world experiences through various partnerships.

“St. Mary's teaches boys to open their minds and become the top of their class...not because St. Mary's is easy but because it is structured for boys to learn."  - Parent of a graduate of the Class of 2013.