St. Matthias offers many extracurricular activities, including Band, Baseball, Basketball, Soccer, and much more. The school also works closely with the nearby Scouting Office and makes the school available during the evenings for a Polish School.
The philosophy of the school and faculty promotes the value of service and the sharing of one’s time, and encourages students to serve as Jesus did. Students have formal opportunities to do this by becoming altar servers, joining the student patrol in 7th Grade, and performing tutoring with students in need. Informal opportunities such as being a buddy and good role model to lower grade students, and being a friend in need are present every day.