Home Postcodes by state QLD 4156 Postcode 4156 4156 is the postcode for 2 localities in QLD: Burbank and Mackenzie. Localities with postcode 4156BurbankQLDMackenzieQLD Postcode 4156 State or territory Queensland (QLD) Localities 2 Council area Brisbane Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 4155 · Postcode 4157