Home Postcodes by state QLD 4154 Postcode 4154 4154 is the postcode for 3 localities in QLD: Gumdale, Ransome and Wakerley. Localities with postcode 4154GumdaleQLDRansomeQLDWakerleyQLD Postcode 4154 State or territory Queensland (QLD) Localities 3 Council area Brisbane Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 4153 · Postcode 4155