- Three and four year old preschool
- Two mornings a week for three year olds (Tuesday and Thursday)
- Three mornings a week (Monday, Wednesday, Friday) or 5 afternoons a week for four year olds
- Full day kindergarten
- First through eighth grades
- Fine arts
- St. Mary School attracts students from Riverside, North Riverside, Brookfield, Berwyn, Bolingbrook, Bridgeview, Burbank, Chicago, Cicero, Forest View, Hillside, LaGrange Park, Lyons, Maywood, Palos Hills, River Forest, Stickney, and Westchester.
- St. Mary School follows the Archdiocesan curriculum which is aligned with the Illinois State Learning Standards.
- Included in our curriculum for all grades is: Physical Education, Spanish, music, art, and computers/technology
- 19 dedicated core classrooms with SMART Boards
- A dedicated Technology Lab with 30 Mac Computers
- A Library/Resource room with 25 Mac Computers
- Art, Music, and Spanish Rooms
- 2 rooms dedicated for reading support
- Full court Gymnasium with stage
- Lunch Room that supports a hot lunch program