Home Postcodes by state SA 5582 Postcode 5582 5582 is the postcode for 2 localities in SA: Port Giles and Stansbury. Localities with postcode 5582Port GilesSAStansburySA Postcode 5582 State or territory South Australia (SA) Localities 2 Council area Yorke Peninsula Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 5581 · Postcode 5583