From the design standpoint, the drop-down is an excellent feature which helps to create a cleaner layout and automatically validates the input. While working with Magento 1 or Magento 2, the best example is country and state drop down lists.
Talking about Australia, a majority of the older Magento 1 and Magento 2 versions don’t include states drop-down list for it. Magento developers need to deal with creating a list of states while adding forms or in the backend configuration.
Check the SQL script to import Australian states Magento at https://meetanshi.com/blog/import-australian-states-in-magento/