Home Postcodes by state QLD 4856 Postcode 4856 4856 is the postcode for 7 localities in QLD: Goolboo, Japoonvale, Mccutcheon, No 4 Branch, No 5 Branch, Silkwood and 1 more. Localities with postcode 4856GoolbooQLDJapoonvaleQLDMccutcheonQLDNo 4 BranchQLDNo 5 BranchQLDSilkwoodQLDWalter Lever EstateQLD Postcode 4856 State or territory Queensland (QLD) Localities 7 Council area Cassowary Coast Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 4855 · Postcode 4857