Better Education. Brighter Future.


Parents of Trinity Catholic students are vital members of our school community. Trinity Catholic recognizes the sacrifices parents make to ensure their children receive a quality Catholic education. Thus, we strive to keep the parents involved in the school community as much as possible. Throughout the school year there are numerous opportunities for parents to strengthen their connection to the school community. Our Trinity Parent Organization (TPO) and the Titan Booster Club are two organizations open to all parents of the Trinity community. These incredible networks of parents put on several events throughout the year, including Trivia Nights, Spirit events for Titan Athletic teams, and informational events.

As a Trinity Catholic Parent, you contribute to the school in ways you may not even recognize. Please, do not hesitate to inquire about getting more involved. See the TPO and Booster club sections of the website, or call the main office for more information.

Auction Update: A Message from Sr. Karl Mary

Your commitment to helping enhance the lives of Trinity students is an inspiration to us. We could not thank you enough. Please see the video below for a spacial message of thanks from Sr. Karl Mary Winkelmann. God Bless!

 Student Accident Insurance 

Student Accident Insurance Information

Late Start Policy

Effective January 1, 2016, students who arrive to school on late start days before 9:00 a.m. must report for supervised study hall in Room 116. Please see the list below for Late Start Dates for the Fall 2017 Semester. 

September 6th

September 27th

October 11th

November 8th

December 13th


2017-18 Dress Code 


Have TCHS Uniforms that don't fit?

The Bookstore is always looking for slightly worn TCHS uniform donations. If you have any uniforms that are not being used be sure to bring them to the Bookstore! For more information contact Cheryl Walsh, or at 314-741-1333. 


 Archdiocese of St. Louis:

'Safe Environment Program'

The Safe Environment Program, as outlined by the Archdiocese of Saint Louis, requires all employees and volunteers who will be working with or near children or youth to comply with specific requirements. These requirements are listed in the Archdiocese Safe Environment Program Form. 

Some of these requirements include, but are not limited to:

For information regarding volunteer opportunities at Trinity Catholic High School, please contact the school office at 314-741-1333.

For additional information regarding the Archdiocese of Saint Louis Safe Environment Program or to inquire about how you can become a certified, Archdiocesan volunteer, contact:

Sandra PriceDirector of the Safe Environment Program

314-792-7271 or