Home Postcodes by state NSW 2766 Postcode 2766 2766 is the postcode for 2 localities in NSW: Eastern Creek and Rooty Hill. Localities with postcode 2766Eastern CreekNSWRooty HillNSW Postcode 2766 State or territory New South Wales (NSW) Localities 2 Council area Blacktown Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 2765 · Postcode 2767