Home Postcodes by state QLD 4280 Postcode 4280 4280 is the postcode for 4 localities in QLD: Jimboomba, North Maclean, South Maclean and Stockleigh. Localities with postcode 4280JimboombaQLDNorth MacleanQLDSouth MacleanQLDStockleighQLD Postcode 4280 State or territory Queensland (QLD) Localities 4 Council area Logan Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 4275 · Postcode 4285