Home Postcodes by state QLD 4512 Postcode 4512 4512 is the postcode for 3 localities in QLD: Bracalba, Wamuran and Wamuran Basin. Localities with postcode 4512BracalbaQLDWamuranQLDWamuran BasinQLD Postcode 4512 State or territory Queensland (QLD) Localities 3 Council area Moreton Bay Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 4511 · Postcode 4514