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.