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Saint William Catholic Church is located in Southwest Round Rock, Texas. Need directions? Click here


Thank you for choosing Saint William as your spiritual home.

Welcome to the parish of Saint William!  We are honored and blessed that you have chosen Saint William as your parish and spiritual home.

Saint William is a thriving parish community overflowing with ways to help you and your loved ones grow in the spirit of Christ and our Catholic faith.  We take seriously our mission of being “a place, a people, a purpose.”  We are committed to being a caring family of faith, celebrating Jesus in worship and service.

We challenge you to take an active part in this vision:

  1. Explore the over 100 ministries that take place on our campus, find one that interests you, and get involved!  We need you and your gifts to strengthen our community.
  2. Your financial gifts help Saint William continue to provide the best worship and facility space in the Round Rock area.  Our church would not be what it is today without the generosity of our parishioners.  Prayerfully consider becoming a monthly giver through our online giving program.  As your pastor, I am committed to ensuring that we are good stewards of all the gifts made to Saint William.

Pope Benedict XVI said, in regards to the lay faithful of our church, that you “must no longer be viewed as ‘collaborators’ of the clergy, but truly recognized as ‘co-responsible’, for the Church’s being and action.”  He goes on to say, “The Church, therefore, is not the result of an aggregation of individuals but of unity among those who are nourished by the one Word of God and the One Bread of Life.”  We look forward to working with you as we continue to build up God’s kingdom through all that we do at Saint William Catholic Church.

Grace and Peace,


Rev. Dean E. Wilhelm