Opened in the fall of 1997, St. Benedict CSS has approximately 1800 students (as of 2018), from grades 9 to 12, and is part of the Waterloo Catholic District School Board.

The atrium features a large circular design with a full-glass ceiling and stainless-steel stair railings.

In 2001, plans were put in place to construct an addition to the rear right side of the school, as well as a separate manufacturing shop building.

Along with the expansion, several parts of the original school building were upgraded as well, such as the main office and the wood shop.

The school helps out with a variety of charities throughout the year with Thursday mission collections dedicated to a different cause each week.

Students are encouraged to get involved with the extra-curricular activities available at school, including the annual play, bi-annual musical, participation in the Sears Drama Festival (Dramafest), the multiple clubs for miscellaneous subjects, and its many sports teams.