Home Postcodes by state SA 5481 Postcode 5481 5481 is the postcode for 4 localities in SA: Bangor, Murray Town, Wirrabara and Wongyarra. Localities with postcode 5481BangorSAMurray TownSAWirrabaraSAWongyarraSA Postcode 5481 State or territory South Australia (SA) Localities 4 Council area Mount Remarkable Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 5480 · Postcode 5482