Home Postcodes by state QLD 4812 Postcode 4812 4812 is the postcode for 9 localities in QLD: Currajong, Gulliver, Hermit Park, Hyde Park, Hyde Park Castletown, Mundingburra and 3 more. Localities with postcode 4812CurrajongQLDGulliverQLDHermit ParkQLDHyde ParkQLDHyde Park CastletownQLDMundingburraQLDMystertonQLDPimlicoQLDRossleaQLD Postcode 4812 State or territory Queensland (QLD) Localities 9 Council area Townsville Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 4811 · Postcode 4813