Home Postcodes by state SA 5047 Postcode 5047 5047 is the postcode for 4 localities in SA: Darlington, Seacombe Gardens, Seacombe Heights and Sturt. Localities with postcode 5047DarlingtonSASeacombe GardensSASeacombe HeightsSASturtSA Postcode 5047 State or territory South Australia (SA) Localities 4 Council area Mainly Onkaparinga, partly Marion; Marion Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 5046 · Postcode 5048