Home Postcodes by state SA 5015 Postcode 5015 5015 is the postcode for 5 localities in SA: Birkenhead, Ethelton, Glanville, New Port and Port Adelaide. Localities with postcode 5015BirkenheadSAEtheltonSAGlanvilleSANew PortSAPort AdelaideSA Postcode 5015 State or territory South Australia (SA) Localities 5 Council area Port Adelaide Enfield Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 5014 · Postcode 5016