St. Mary's School is accredited by:

Accredited by the AdvancEd North Central Commission on Accreditation and School Improvement.
Our diocesan schools are accredited system - wide by AdvancEd North Central Commission on Accreditation and School Improvement, a first for the dioceses and archdiocese of New York State.
 

The school is a member of:

National Catholic Education Association
Catholic School Administrators Association of New York State