Data Sources

Where our postcode data comes from.

🇦🇺 Australia

Australian Postcodes Dataset

Our Australian postcode data is sourced from the community-maintained Australian Postcodes dataset by Matthew Proctor, licensed under MIT. This dataset compiles publicly available postcode data from multiple sources including information originally published by Australia Post.

⚠️ For official address and delivery verification, use Australia Post's official postcode finder.

🇳🇿 New Zealand

New Zealand Postcodes

New Zealand postcode data is compiled from publicly available NZ geographic and postal data. This includes locality, regional, and coordinate information for NZ postcodes.

⚠️ For official NZ address verification, use NZ Post's official address checker.

🗺️ Maps

OpenStreetMap

All maps on this site use OpenStreetMap tiles and the Leaflet.js library. OpenStreetMap data is © OpenStreetMap contributors, licensed under the Open Database License (ODbL).

⚠️ OpenStreetMap attribution is displayed on all map instances.

Reporting Data Issues

If you notice incorrect or outdated postcode data, please contact us via our Contact page. We review and correct issues as quickly as possible.