A single Australian postcode can be associated with multiple postal names. The Australian postcode table provides a lookup for a list of names associated with each postcode. This table exists as a tab-delimited text file.
Note: The reference to the postal locality index from Australia postal boundaries that have more than one locality name has been removed. If the postal boundary has more than one locality name, the name of the postal polygon will be blank. The name is populated only for those Australian postal boundaries that have a single locality name. All multiple postal localities and their corresponding postal codes can be found in the wpb_locality_index_aus.txt file.