Home Postcodes by state QLD 4034 Postcode 4034 4034 is the postcode for 5 localities in QLD: Aspley, Boondall, Carseldine, Geebung and Zillmere. Localities with postcode 4034AspleyQLDBoondallQLDCarseldineQLDGeebungQLDZillmereQLD Postcode 4034 State or territory Queensland (QLD) Localities 5 Council area Brisbane Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 4032 · Postcode 4035