Used to be called addressfield. Adds one dependency - commerceguys/addressing.
This is a bundle of address fields, the correct combinations are shown depending on which country the user selects via a dropdown.
You can configure which countries are allowed per field instance.
To set the default, use the Manage Form Display tab.
It validates postcodes are in the correct format.
Also supports 'zones' (groups of countries/subdivisions) for shipping/tax purposes.