Home Postcodes by state SA 5540 Postcode 5540 5540 is the postcode for 14 localities in SA: Bungama, Coonamia, Napperby, Nelshaby, Pirie East, Port Davis and 8 more. Localities with postcode 5540BungamaSACoonamiaSANapperbySANelshabySAPirie EastSAPort DavisSAPort PirieSAPort Pirie SouthSAPort Pirie WestSARisdon ParkSARisdon Park SouthSASolomontownSATelowieSAWarnertownSA Postcode 5540 State or territory South Australia (SA) Localities 14 Council area Port Pirie; Mount Remarkable Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 5523 · Postcode 5550