Home Postcodes by state QLD 4750 Postcode 4750 4750 is the postcode for 2 localities in QLD: Bucasia and Shoal Point. Localities with postcode 4750BucasiaQLDShoal PointQLD Postcode 4750 State or territory Queensland (QLD) Localities 2 Council area Mackay Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 4746 · Postcode 4751