Home Postcodes by state QLD 4418 Postcode 4418 4418 is the postcode for Guluguba, QLD. Localities with postcode 4418GulugubaQLD Postcode 4418 State or territory Queensland (QLD) Localities 1 Council area Western Downs Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 4417 · Postcode 4419