Home Postcodes by state SA 5017 Postcode 5017 5017 is the postcode for 2 localities in SA: Osborne and Taperoo. Localities with postcode 5017OsborneSATaperooSA Postcode 5017 State or territory South Australia (SA) Localities 2 Council area Port Adelaide Enfield Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 5016 · Postcode 5018