Mater Dei Catholic High School is an amazing place to continue your education and to learn, live and grow as an individual and a member of the global community. With over 370 applicants every year for 9th grade, we have a wide variety of students who demonstrate academic excellence, promising leadership skills, commitment to service, and exhibit diverse talents. We strongly encourage you to visit our campus and set up a Shadow Day so you can see in person what our school has in store for you.

Please don’t hesitate to contact Mr. Roy G. Vasquez–Director of Admissions, for any of your needs. You can call him at 619.423.2121 ext 106 or email

2017-2018 Open House-Admissions Video

September 15, 2017 – January 20, 2018 Online Applications

From the Admissions page of our website, select Apply Now. The online application allows you to begin your application and return later to complete and submit. 

Apply Here

September 2017 – January 2018 Shadow Visits

A Shadow Day is an opportunity for your child to experience firsthand what it is like to be a Mater Dei student.  Our guests are paired with current Mater Dei students and follow the hosting students’ schedules. Email our Admissions team directly to setup a Shadow Day:

Roy Vasquez – Director of Admissions
John Joyner – Admissions Associate 
 Margie Hernandez – Registrar 

October 22, 2017 Open House

Join us for Open House on Sunday, October 22, from 10 a.m. to 1 p.m. Stop by and see firsthand why Mater Dei is the place to be for exceptional academic programs, the arts, athletics and more – all in a faith-filled, nurturing community. Highlights of the day include campus tours featuring the Academy of Science labs, an art exhibition, performances by the band and choir, academic department information tables and more. Informational presentations are scheduled for 10:15 am and 11:45 am.


November 1, 2017 Tuition Assistance Applications Available

Tuition assistance applications are available online from our website beginning on November 1, 2017.  Completed tuition assistance applications must be submitted by February 9, 2018.  For questions regarding tuition assistance, please contact Ms. Margie Hernandez, the Registrar at (619) 423 – 2121 ext 128.

Apply for Tuition Assistance Here

September 15, 2017 – January 20, 2018 Online Sign-Ups for HSPT

There is a $50 fee to take the HSPT.  Submitting the application and testing fee automatically registers your child for the placement test on January 20th.  Students must take the HSPT at Mater Dei on 1/20/18 to be eligible to receive scholarships

January 20, 2018 High School Placement Test (For Incoming 9th Only)

The High School Placement Test for Mater Dei will be held at our campus.  Please arrive no later than 7:45 am on Saturday morning.  The test will begin promptly at 8:00 am and will end by 11:30 am. Calculators are not permitted. There will be an optional parent informational meeting in the theater at 8:30 am.  The meeting will last approximately 45 minutes. 

Apply Here

February 9, 2018 Tuition Assistance Application Due Date 

Tuition Assistance Applications are due February 9, 2018. For more information, visit our website and click on Tuition Assistance under the Admissions tab.

Apply for Tuition Assistance Here

February 16, 2018 Report Cards & Standardized Test Scores

Report cards from 7th grade and the first semester of 8th grade, as well as standardized test scores from 7th and 8th grade must be received in our Admissions office no later than Friday, February 16, 2018.

March 2, 2018 Admissions Decision Letter Day!

Letters of decision mailed.

March 6, 2018 Online Enrollment Opens

Online enrollment opens on Tuesday, March 6, 2018.

April 18, 2018 Deadline to Register for 2018/19 School Year

Register by this date to guarantee your place at Mater Dei for the 2018-2019 school year and to guarantee any associated tuition assistance/scholarships that may have been awarded.