Assumption Family of Schools
- Assumption Catholic Secondary
- Ascension Catholic Elementary
- Holy Rosary (Burlington) Catholic Elementary
- St. John (Burlington) Catholic Elementary
- St. Patrick Catholic Elementary
- St. Paul Catholic Elementary
- St. Raphael Catholic Elementary
Corpus Christi Family of Schools
- Corpus Christi Catholic Secondary
- Sacred Heart of Jesus Catholic Elementary
- St. Anne Catholic Elementary
- St. Christopher Catholic Elementary
- St. Elizabeth Seton Catholic Elementary
Notre Dame Family of Schools
St. Thomas Aquinas Family of Schools
- St. Thomas Aquinas Catholic Secondary
- St. Dominic Catholic Elementary
- St. Luke Catholic Elementary
- St. Nicholas Catholic Elementary
- St. Vincent Catholic Elementary
Holy Trinity Family of Schools
- Holy Trinity Catholic Secondary
- Holy Family Catholic Elementary
- Our Lady of Peace Catholic Elementary
- St. Andrew Catholic Elementary
- St. Cecilia Catholic Elementary
- St. Marguerite d’Youville Catholic Elementary
- St. Michael Catholic Elementary
St. Ignatius of Loyola Family of Schools
- St. Ignatius of Loyola Catholic Secondary
- St. Bernadette Catholic Elementary
- St. Gregory the Great Catholic Elementary
- St. Joan of Arc Catholic Elementary
- St. John Paul II Catholic Elementary
- St. Mary Catholic Elementary
- St. Matthew Catholic Elementary
- St. Teresa of Calcutta Catholic Elementary
Thomas Merton
Bishop P.F. Reding Family of Schools
- Bishop P. F. Reding Catholic Secondary
- Holy Rosary (Milton) Catholic Elementary
- Our Lady of Victory Catholic Elementary
- St. Anthony of Padua Catholic Elementary
- St. Peter Catholic Elementary
St. Francis Xavier Family of Schools
- St. Francis Xavier Catholic Secondary
- Lumen Christi Catholic Elementary
- Queen of Heaven Catholic Elementary
- St. Benedict Catholic Elementary
- St. Josephine Bakhita Catholic Elementary
- St. Scholastica Catholic Elementary
St. Kateri Tekakwitha Family of Schools
- St. Kateri Tekakwitha Catholic Secondary
- Guardian Angels Catholic Elementary
- Our Lady of Fatima Catholic Elementary
- St. Veronica Catholic Elementary
Christ the King Family of Schools
- Christ the King Catholic Secondary
- Holy Cross Catholic Elementary
- St. Brigid Catholic Elementary
- St. Catherine of Alexandria Catholic Elementary
- St. Francis Assisi Catholic Elementary
- St. Joseph (Acton) Catholic Elementary