St. Mary School hosts an up-to-date computer lab with 30 computers for student use. Students use the lab on a regular basis in a Computer class in which they learn use of various programs including Microsoft Word, Excel, Publisher, PowerPoint, and Windows Movie Maker, as well as practice their typing skills. Future plans include possibly introducing web site design through the use of Adobe Dreamweaver in the upper grades. The lab is also open for teachers to bring in their classes to work on class projects and do research. Computers are also located in the school library, Extension Center, and various classrooms.
As of the 2008-2009 school year, SmartBoards and overhead digital projectors have been introduced into three classrooms and the computer lab to great success and plans to add more.