Home Postcodes by state QLD 4356 Postcode 4356 4356 is the postcode for 18 localities in QLD: Bongeen, Broxburn, Evanslea, Irongate, Kincora, Linthorpe and 12 more. Localities with postcode 4356BongeenQLDBroxburnQLDEvansleaQLDIrongateQLDKincoraQLDLinthorpeQLDMotleyQLDMount TysonQLDNorth BranchQLDNorwinQLDPittsworthQLDPurrawundaQLDRossvaleQLDScrubby MountainQLDSpringsideQLDSt HelensQLDStoneleighQLDYarranleaQLD Postcode 4356 State or territory Queensland (QLD) Localities 18 Council area Toowoomba Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 4355 · Postcode 4357