Home Postcodes by state QLD 4174 Postcode 4174 4174 is the postcode for Hemmant, QLD. Localities with postcode 4174HemmantQLD Postcode 4174 State or territory Queensland (QLD) Localities 1 Council area Brisbane Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 4173 · Postcode 4178