Home Postcodes by state NSW 2760 Postcode 2760 2760 is the postcode for 7 localities in NSW: Colyton, North St Marys, Oxley Park, Ropes Crossing, St Marys, St Marys East and 1 more. Localities with postcode 2760ColytonNSWNorth St MarysNSWOxley ParkNSWRopes CrossingNSWSt MarysNSWSt Marys EastNSWSt Marys SouthNSW Postcode 2760 State or territory New South Wales (NSW) Localities 7 Council area Penrith; Blacktown Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 2759 · Postcode 2761