Home Postcodes by state QLD 4454 Postcode 4454 4454 is the postcode for 11 localities in QLD: Baffle West, Beilba, Durham Downs, Highland Plains, Hutton Creek, Injune and 5 more. Localities with postcode 4454Baffle WestQLDBeilbaQLDDurham DownsQLDHighland PlainsQLDHutton CreekQLDInjuneQLDMount HuttonQLDPony HillsQLDSimmieQLDUpper DawsonQLDWestgroveQLD Postcode 4454 State or territory Queensland (QLD) Localities 11 Council area Maranoa Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 4428 · Postcode 4455