Home Postcodes by state QLD 4353 Postcode 4353 4353 is the postcode for 3 localities in QLD: Bergen, East Cooyar and Haden. Localities with postcode 4353BergenQLDEast CooyarQLDHadenQLD Postcode 4353 State or territory Queensland (QLD) Localities 3 Council area Toowoomba Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 4352 · Postcode 4354