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2021-2022 Registration Information for New and Returning Trinity Students

Update on September 1, 2021: If you need to register a new student to Trinity High School during the school year, please contact the front office at the school.

School staff may direct you to complete this online form:


The following information was used for registration before the start of the 2021-2022 school year. It may help you plan for the documents the school will need during the registration process.

New Student Online Registration:

Parents of new students, please return to this page on July 15, 2021 to complete the online form to begin the registration process, then watch for follow-up emails with more information:

Note: These links will start working at 5:00 PM on July 15, 2021


Returning Student Online Registration:

HEB ISD will send an email to parents of returning HEB ISD students on July 8, 2021. This email will have your "Snap Code" and a link to the online registration form for returning students. Please complete online registration before July 22 to allow processing before in-person registration.

All returning students must register online with your Snap Code prior to attending schedule pick-up.

Report to the Cafeteria at the date and time according to your birth month:

  • July 26th: Seniors
  • July 27th: Juniors
  • July 28th: Sophomores


  • 8:00am - January/February
  • 9:00am - March/April
  • 10:00am - May/June
  • 11:00am - July/August
  • 12:00pm - September/October
  • 1:00pm - November/December

Late Registration:  August 5th      1:00 pm until 4:00 pm.