The Dominican Sisters of Houston, Texas, in conjunction with the Diocese of Galveston-Houston, founded St. Pius X High School in 1956. This co-educational high school opened in September of 1956 with 253 ninth and tenth grade students, under the patronage of St. Pius X. In 1957, St. Pius X served grades nine through eleven, and by 1958, the school functioned as a four-year high school. St. Pius X numbers more than 5,000 graduates among its alumni, many of whom now have sons and daughters in attendance at the school.


How to Apply

All applicants must complete and submit the items below (click the steps for dropdown information)


We are now accepting applications for the 2023-2024 school year.

Take the first step on your journey to becoming a Panther - apply today!


  1. Click the orange “Apply Today!” button.
  2. Select the blue “Create Account” link on the left-hand side to create your application username and password.
  3. After entering the requested information, click the “Create Account” button.
  4. Once logged in, you should see a button that says, “Fill Out” under a section that says “Application.”
  5. If you have twins or are applying more than one child, you can select the “Apply Another Child” Button in your application portal and it will start a separate application for your second child.
  6. Once your application and $75 application fee is received, you will be able to monitor your child’s application progress and register for events through your application portal.
  • NOTES:
    • “Candidate” refers to your child, not yourself.
    • If you have submitted an inquiry form or have interacted with our school before, it is possible that you will receive a red notice with the following message:


You can apply your child with an older sibling currently attending SPX by following these steps:

  1. Click on the “Apply Now” button.
  2. Enter your MySchoolApp username and password.
  3. Click “Apply Another Child”


St. Pius X High School admits students of any race, color, national and ethnic origin to all rights, privileges, programs and activities generally accorded and made available to students. St. Pius X High School does not discriminate on the basis of race, color, national and ethnic origin in administration of their educational policies, scholarships and loan programs and athletic and other administered programs.

Questions? Contact Us

Entrance Exam Information

Entrance Exam Information

Students applying for the 9th grade must register and take the ISEE:

Please send us your ISEE (Independent School Entrance Exam) test scores by logging in to your ERB parent account and adding St. Pius X High School as a score recipient. Our school code is 571082. These scores are required to complete your application.

We are offering the ISEE on our campus on Saturday, November 11, 2023, and Saturday, January 13, 2024.

High school transfer applicants must submit their PSAT, SAT, ACT, or STAAR test scores.

Frequently Asked Questions about the ISEE:


With 14 honors courses, 11 AP courses and 3 dual credit courses, SPX has classes for every scholar!

Learn More


Whether interested in dance, ceramics, painting, stagecraft, handbells or acting, SPX offers something to meet the needs of developing arts leaders!

Learn More


Developing Veritas men and women on and off the fields and courts is one of the many benefits of participating in athletics at SPX!

Learn More