Saint William Catholic Church Search | Advanced Search | New Members | Coupons and Discounts | All Categories   Other >> Faith Organizations >> Churches Saint William Catholic Church 620 Round Rock West Dr.Round Rock, TX 78681 | map | directions Victor Lara (512) 255-4473 | fax: (512) 255-8126 Visit Site Investor Since: 2003 Send a message to: Saint William Catholic Church Your Name: Your Email: Subject: Message: (Date: 5/19/2022)