Postcode 5421 in Australia Data of cities, streets and addresses for Australian postal code 5421 Terowie Aver Street Barrier Access Road Belalie Road Booborowie Road Bush Track 9050 Road Cleary Road Detour Road East Terrace Franklyn Road Frederick Street Hoskin Street Lynbrae Road Main Street Mitchell Street Neathvale Road Packer Street Railway Terrace East Sleep Road Steggles Road Warranilla Road Franklyn Franklyn Road Pandappa Road All Australian postal codes starting with 0 2 3 4 5 6 7