Home Postcodes by state QLD 4506 Postcode 4506 4506 is the postcode for 2 localities in QLD: Moorina and Morayfield. Localities with postcode 4506MoorinaQLDMorayfieldQLD Postcode 4506 State or territory Queensland (QLD) Localities 2 Council area Moreton Bay Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 4505 · Postcode 4507