St. John XXIII School Ranking

The 2025 St. John XXIII Catholic school ranking represents an opinion of ours based upon hundreds of hours of research with the end-goal of determining where, exactly, the “best” Catholic schools in Mississauga ARE for young families.

See Below

for homes in the St. John XXIII school district.

See Below

for homes in the St. John XXIII school district.

The St. John XXIII Catholic school ranking is determined by their EQAO scores, the consistency of those results, and the demographics of the school district. For more on how the CAP Rankings are resolved, please visit here.