Australia
ISO 3166-1 country codes and official ISO 3166-2 subdivisions for Australia. Use them in forms, validation, and CountriesDB integrations.
About Australia codes
Need Australia (AU) for a checkout form, shipping zone, or backend validation? This page summarizes the ISO 3166-1 country codes and official subdivisions developers use with CountriesDB.
This guide lists 8 official ISO 3166-2 subdivisions for Australia. These are the same codes CountriesDB serves through widgets and the Backend Data API.
For production, use the CountriesDB country/subdivision widget or fetch Australia from the Data API and validate codes server-side instead of copying values from this page.
ISO codes
Official subdivisions (8)
Official ISO 3166-2 codes for Australia. Use these values in region/state selects and server-side validation, not informal or marketing region names.
| Code | Name | Type |
|---|---|---|
| AU-ACT | Australian Capital Territory | territory |
| AU-NSW | New South Wales | state |
| AU-NT | Northern Territory | territory |
| AU-QLD | Queensland | state |
| AU-SA | South Australia | state |
| AU-TAS | Tasmania | state |
| AU-VIC | Victoria | state |
| AU-WA | Western Australia | state |
Frequently asked questions
- What is the ISO 3166-1 code for Australia?
- Australia uses ISO 3166-1 alpha-2 AU, alpha-3 AUS, and numeric 036. These codes show up in forms, shipping, banking, and APIs.
- How many official ISO 3166-2 subdivisions does Australia have?
- CountriesDB lists 8 official ISO 3166-2 subdivisions for Australia (states, provinces, regions, or equivalent). Use them when you validate region selects and shipping zones.
- How do I use Australia country and subdivision data in a form?
- Use the CountriesDB widget or Data API to fill country and subdivision selects for Australia, then validate submitted codes with the Validation API so alpha-2 and ISO 3166-2 values stay consistent.
Use Australia in your app
Add CountriesDB country and subdivision selects with the widget docs, or call the Backend Data API for Australia (AU) and validate submissions with the Validation API. Guides stay in sync with the same dataset your project keys already use. widget docs.