St Mary’s School has close ties with:
- MacKillop Catholic College, Warnervale
- St Brigid’s Catholic College, Lake Munmorah
- St Peter’s Catholic College, Tuggerah (co-educational Years 7-12)
- St Joseph’s Catholic College, East Gosford (girls Year 7-12)
and other local high schools which belong to the Diocese of Broken Bay.
- St Edward’s College, East Gosford (boys Years 7 – 12) is an independent Catholic secondary school in the local area.