 The three schools began to operate in their current co-educational format in 1992.The St Mary's and St Peter's campuses are situated in the heart of Maitland and the St Joseph's campus is situated west of Maitland.Following a "Study into the Provision of Catholic Education in the Diocese of Maitland-Newcastle", in 2018 St Joseph's College, Lochinvar terminated its membership of All Saints College and became a stand-alone Years 7-12 school.