Postcode Boundaries

Disclaimer

Geoscape Australia believes this publication to be correct at the time of printing and does not accept responsibility for any consequences arising from the use of the information herein. Readers should rely on their own skill and judgement to apply information to particular issues.

This work is copyright. Apart from any use as permitted under the Copyright Act 1968, no part may be reproduced by any process without prior written permission of Geoscape Australia.

Overview

The Postcodes Boundaries dataset is Australia’s most definitive set of Postcodes developed by Australia Post and Geoscape Australia. The Postcode Boundaries dataset represents postcodes as both a polygon (postcode boundaries) and a point (postcode centroid). For more information, please refer to the Postcode Boundaries Product Description. Geoscape welcomes your feedback on the Postcode Boundaries product. We also publish regular product development updates on our website ( www.geoscape.com.au ).

Release Summary

This product was released to customers on 17 February 2025 with data extracted on 11 February 2025.

• This release is a full national data population for the Postcode Boundaries product, described by the Postcode Boundaries Product Description.

Any issues that have been identified for this release are described in the Issues section.

Change Notifications

No change notifications.

Updates

General

• The QA process highlighted the existence of multi-part Postcode polygons, some of these spanning significant distances.

• A small number of gazetted localities were identified that do not currently have postcodes assigned. These will be submitted to postcode allocation and if successful, included in future updates.

• A postcode polygon is considered to have changed if its geometry has changed by ‘0.00005’ degrees.

Northern Territory

• Marine parks near Darwin have not been allocated postcodes. These are non-delivery areas and will only serve to overstate the total area covered by the postcode and any “per square km” statistics generated from them.

Queensland

• Some localities in QLD are unable to be allocated postcodes at this time. Examples include “Upland”, “Ward” and “Selwyn”.

• Marine parks have not been allocated postcodes. These are non-delivery areas and will only serve to overstate the total area covered by the postcode and any “per square km” statistics generated from them.

South Australia

• As the South Australian land authorities have not gazetted the north-western part of the state there will not be any postcodes generated on locality basis.

Future Considerations

This section outlines enhancements or changes under consideration, but not planned into a specific release. For further details on future initiatives, please contact Geoscape Support.

Western Australia

The North-western coastline has excessive detail and may be simplified in a future release. At this time this area is excluded from topology change comparison. Visual inspection indicates minimal changes to this remote region.

Annex A – Release Counts

The volume of updates applied in this release is included in the table below.

TABLE	ACT	NSW	NT	OT	QLD	SA	TAS	VIC	WA	TOTAL
LOCALITY_POSTCODE	0	0	0	0	0	3	0	0	0	3
POSTCODE	0	0	0	0	0	1	0	0	0	1
POSTCODE_POINT	0	0	0	0	0	1	0	0	0	1
POSTCODE_POLYGON	0	0	0	0	0	1	0	0	0	1

Note

Edits to the Postcode Points and Postcode Polygons theme are generally geometry recalculations required after the geometry from associated locality boundaries were edited.