St Leo's College is conducted under the auspices of the Catholic Church.
Residents are encouraged to integrate the principles of faith, spirituality and care for others into their daily life.
St Leo's residents endeavour to assist the disadvantaged in society. A student-driven Social Justice Committee operates in the College. Further, the St Leo's and Duchesne 'Vinnie's' Conference encourages all residents to engage in fundraising activities to support the wider community.
Opportunities for students are provided to be involved in charity days with links to support programs such as Edmund Rice Camps for Disadvantaged Children and collections for cancer research.