St. Pius X - St. Matthias Academy

St. Pius X - St. Matthias Academy This is the official page for St. Pius X-St. Matthias Academy in Downey, CA. St. Matthias High School (1963-2013). About 80% of St. Matthias High School for Girls.

Matthias Academy was born from two great traditions of Catholic Education in the Archdiocese of Los Angeles- Pius X High School (1953-1998) and St. In the year 1953, the Archdiocese of Los Angeles launched Pius X High School which served a co-ed population from the southeast area of Los Angeles County. The campus was home to Pius X High School from 1953 until the Archdiocese of Los Angeles announc

ed a school realignment transforming Pius X, a co-educational high school, into a co-institutional high school with St. Matthias, phasing out the Pius X program over a three-year period. Matthias' all-girls student body of 300 transferred to Pius X campus. This resulted in a larger all-girl Catholic high school located on the sprawling 17-acre Pius X campus which became known as St. In 2012 the Archdiocese of Los Angeles announced that St. Matthias High school would transition to a co-ed school with the formal name of St. Matthias Academy which began enrolling freshman boys and girls in the Fall of 2013. With this transition, the school saw many transformations in its student profile and the facility upgrades and renovations that took place in the Spring and Summer of 2013. A grand re-dedication and blessing with the Archbishop of Los Angeles took place on August 9, 2013. The school officially opened its doors to students the following week with 26 boys and 237 girls. Today the school serves a co-ed population of 455+ students to provide them with an opportunity to receive an outstanding Catholic college preparatory education.

The countdown is ON! ⏳ High school applications open in just 5 DAYS!Discover a place where faith, excellence, belonging,...
08/27/2026

The countdown is ON! ⏳ High school applications open in just 5 DAYS!

Discover a place where faith, excellence, belonging, and Warrior spirit come together. ❤️🖤 Whether you’re ready to grow in your Catholic faith, find your community, or prepare for your future, your Warrior journey starts here!

🎓 Applications open September 1.

Today, on the feast day of one of our patron saints, St. Pius X, PMA Warriors & Faculty/Staff gathered for prayer as we ...
08/22/2026

Today, on the feast day of one of our patron saints, St. Pius X, PMA Warriors & Faculty/Staff gathered for prayer as we celebrated the 1st Mass of the school year. ⛪️

After Mass, Campus Ministry encouraged Warriors to visit a few interactive and fun stations to learn more about our patron saint.

St. Pius X, pray for us….

It’s WOW Week here at PMA & we’re kicking it off with MOVIE MONDAY! 🎥 🍿
08/17/2026

It’s WOW Week here at PMA & we’re kicking it off with MOVIE MONDAY! 🎥 🍿

🌅 Last year, first sunrise! One last chapter begins on the field where so many memories were made. Here’s to the Class o...
08/14/2026

🌅 Last year, first sunrise! One last chapter begins on the field where so many memories were made. Here’s to the Class of 2027! 🖤❤️☀️

Kinda chic to be a WARRIOR ⚔️ Swipe for some tips on having a successful school year!
08/12/2026

Kinda chic to be a WARRIOR ⚔️

Swipe for some tips on having a successful school year!

🎲 BINGO NIGHT IS BACK!Join us for our 2nd Annual PMA Bingo Night and bring the whole crew. Families, friends, and fellow...
08/11/2026

🎲 BINGO NIGHT IS BACK!

Join us for our 2nd Annual PMA Bingo Night and bring the whole crew. Families, friends, and fellow Warriors are all invited for a fun night of bingo, prizes, food, music and good company!

Sign up via the link in our bio! ❤️🖤

Save the date — we’ll see you there!

You just walked into the best year yet. 👀⚔️First day energy = UNMATCHED.New year. New memories. Same spirit. Welcome bac...
08/10/2026

You just walked into the best year yet. 👀⚔️

First day energy = UNMATCHED.

New year. New memories. Same spirit. Welcome back WARRIORS!❤️🖤

Aloha to our newest Warrior parents! 🌺✨ Thank you for joining us for an unforgettable Parent Luau. It was wonderful to c...
07/24/2026

Aloha to our newest Warrior parents! 🌺✨ Thank you for joining us for an unforgettable Parent Luau. It was wonderful to connect, share laughs, and celebrate the beginning of your family’s high school journey. We can’t wait to welcome the Class of 2030 in just a few weeks! ⚔️

Address

7851 Gardendale Street
Downey, CA
90242

Opening Hours

Monday 7am - 3:30pm
Tuesday 7am - 3:30pm
Wednesday 7am - 3:30pm
Thursday 7am - 3:30pm
Friday 7am - 3:30pm

Telephone

+15628612271

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