Home Postcodes by state QLD 4406 Postcode 4406 4406 is the postcode for 10 localities in QLD: Boondandilla, Hannaford, Jimbour, Kaimkillenbun, Kogan, Macalister and 4 more. Localities with postcode 4406BoondandillaQLDHannafordQLDJimbourQLDKaimkillenbunQLDKoganQLDMacalisterQLDMoonieQLDSouthwoodQLDThe GumsQLDWeir RiverQLD Postcode 4406 State or territory Queensland (QLD) Localities 10 Council area Goondiwindi; Western Downs Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 4405 · Postcode 4407