St. Thomas Aquinas Catholic School participates in the Private Schools Interscholastic Association, an educational organization serving all privately schooled students in Texas in 1st-8th grades. Fifty-nine academic contests are offered in six different areas of study.
PSIA provides an exciting opportunity for private/parochial school students to engage in academic competition with their peers throughout the state of Texas. PSIA is the most comprehensive academic extracurricular program in America for students in first grades through eighth grade. STA participates in ten areas and with students in 4th-7th grades.