Admissions » Important Dates

Important Dates


St. Mary’s High School will participate in the following High School Nights. Three 20 minute presentations will address the school’s Marianist mission, curriculum, academic requirements, extra-curricular activities, athletics and other exciting St. Mary's High School news. St. Mary’s students and staff will be available for questions.

Tuesday, September 11, 2018

Cor Jesu Academy

Tuesday, September 18, 2018

Cardinal Ritter College Prep

Thursday, September 20, 2018


Thursday, September 27, 2018

Bishop DuBourg

Thursday, October 4, 2018

Trinity Catholic


Sunday, November 4, 2018
12:00-4:00 p.m.

We hope you will consider visiting St. Mary's High School for our annual Open House. We are excited for families to see what has been happening on our campus! From physical improvements in our main building to the continuous accolades, our faculty keep receiving regarding their teaching, St. Mary’s just keeps getting better. If you have not visited us in a while, we believe it will be worth your time.
  • Tour the School and Athletic Facilities
  • Meet with our Administrative Team, Teachers, Parents, and Students
  • Enjoy Food and Drink
  • Participate in Student Activities
  • Win a $1000 scholarship for attending!
If you have any questions regarding Open House festivities, please contact the Admissions Director at 314-481-8400 ext. 110 or at

 September 11   Shadow Program begins
 September 28  Dragon for a Day
 November 4  St. Mary's Open House 12:00-4:00 p.m.
 November TBA  Archdiocesan Online Applications begin (Catholic School Students Only)
 January 9  Application Interviews
 January 12  Placement Tests TENTATIVE
 February 1
 Acceptance Letters Mailed
 February 12  Incoming Freshmen Registration TENTATIVE
 March 15  FACTS Tuition Assistance Applications DUE
 March 31  Incoming Freshmen Mass & Breakfast
 May  Notification of Tuition Assistance Awards