Home Postcodes by state QLD 4798 Postcode 4798 4798 is the postcode for 4 localities in QLD: Calen, Mentmore, Pindi Pindi and St Helens Beach. Localities with postcode 4798CalenQLDMentmoreQLDPindi PindiQLDSt Helens BeachQLD Postcode 4798 State or territory Queensland (QLD) Localities 4 Council area Mackay Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 4757 · Postcode 4799