St Mary's College is located at 286 Margaret Street Toowoomba. The College is a day school for boys from years 5 to 12. The current enrolment of the College is 620 students with 126 in the Primary School from years 5 to 7 and 494 students in the Secondary School from years 8 to 12.
The College is located within close proximity to the central business district of Toowoomba and is centrally located within Toowoomba. The College was established in 1899 by the Christian Brothers under the direction of the Catholic Diocese of Toowoomba.
The College has playing fields adjoining the Campus located in Hill Street. The playing fields consist of one rugby league field and a soccer field. There are practice cricket nets together with tennis courts. The most recent addition to the resources available for the students in the sporting area is the newly constructed Two Court National Standard Indoor Sports Complex operated and constructed by the St Mary's College Old Boys' Association.
St Mary's College as an educational community fosters Christian living in the Catholic tradition. The community is committed to developing a welcoming spirit through which all community members are encouraged and challenged to develop as children of God. The College reaches out to students from diverse backgrounds.