Home Postcodes by state NSW 2761 Postcode 2761 2761 is the postcode for 6 localities in NSW: Colebee, Dean Park, Glendenning, Hassall Grove, Oakhurst and Plumpton. Localities with postcode 2761ColebeeNSWDean ParkNSWGlendenningNSWHassall GroveNSWOakhurstNSWPlumptonNSW Postcode 2761 State or territory New South Wales (NSW) Localities 6 Council area Blacktown Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 2760 · Postcode 2762