Important Dates


St. Mary's High School will participate in these VIRTUAL High School Nights. 

Sunday, November 7, 2021
11:00 am - 2:00 pm

We hope you will consider visiting St. Mary's High School for our annual Open House. We are excited for families to see our campus! From physical improvements in our main building to our faculty's continuous accolades regarding their teaching skills, St. Mary's keeps getting better! If you have not visited us in a while, plan to make this one of your high school visits. It will be worth your time!
  • Tour the School and Athletic Facilities
  • You can 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 Sam Carel, Admissions Director, at 314.481.8400 ext. 110 or

 September 7  Shadow Program begins
 Select a date for your son HERE!
 October 1  Dragon for a Day
TBD  Archdiocesan Portal OPENS for Online Applications
 (Parish School Students Only)
 November 7  St. Mary's Open House 11 am - 2 pm
September 7  St. Mary's Open for Scheduled Tours from 10 am - 2 pm
 Select a time HERE!
 November 15  Archdiocesan Portal CLOSES
TBD  Admission Interviews
 January 28
 Acceptance Notification
TBD  Incoming Freshmen Registration Night
 April 1  Be A Dragon For A Day: Spring 2022  REGISTER
TBD  FACTS Tuition Assistance Applications DUE
TBD  Incoming Freshmen Mass & Breakfast
 May  Notification of Tuition Assistance Awards