Dataset extent

Map data © OpenStreetMap contributors

PSMA - Postcodes (Polygon) (August 2018)

This layer presents the footprint of Postcode Boundaries in Australia. The Postcode Boundaries dataset is the definitive set of postcodes developed by Australia Post and PSMA Australia.

Postcodes are allocated to geographic areas to facilitate the efficient processing and delivery of mail to customers. The current four-digit numeric postcode system was introduced in 1967 in association with the first mechanised mail processing centre in Australia. The government land administration agencies in each state and territory are responsible for gazetting locality names and boundary positions. Postcodes are only allocated to localities officially gazetted by land agencies. In the majority of circumstances, a postcode covers an area comprising of more than one locality. The decision as to whether a new postcode or an existing postcode is to be allocated to a locality is based on operational efficiency. Issues that underpin the decision are critically analysed; these include the configuration of the Australia Post network, transportation connections and delivery arrangements. All suburb/locality data used for the polygon geometry in postcodes is captured by the state and territory governments through appropriate agencies. The digital suburb/locality boundaries and their legal identifiers have been derived from the cadastre data from each Australian state and territory jurisdiction.

For more information, please refer to the PSMA Website:

Please note:

  • This dataset contains the August 2018 data release.

Data and Resources

Additional Info

Field Value
Last Updated March 20, 2020, 06:10 (UTC)
Created November 21, 2018, 06:08 (UTC)
License Data Licence (PSMA Distribution Pty Limited)
Aggregation Level NA
Attribute List Geometry, Postcode, Postcode Class Code, State or Territory ID, Unique ID
Attribution PSMA Australia Limited, PSMA - Postcodes (Polygon) (August 2018); accessed from AURIN on [date of access].
Coordinate Ref. System EPSG:4283 (GDA_1994)
Copyright Notice © PSMA Australia Limited 2018
Geometry Field wkb_geometry
Key pc_pid
Type dataset
spatial {"type": "Polygon", "coordinates": [[[96.82, -43.74], [159.11, -43.74], [159.11, -9.14], [96.82, -9.14], [96.82, -43.74]]]}