Welcome to St. Pius X St Pius X Catholic School is a private school serving the families of Southside ). We also offer before and after school care. Predominantly Catholic, we are a strong family-centered community and welcome children of all faiths at St Pius X School. Tips for Auction Night….Click here Donations to St. Pius X School help to enhance the educational endeavors of our students. Please click on the link if you would like to give now.