How to set required field ''State/Province' of add new address in My Address Book, magento 2?

Question

Using magento 2.2, I want to set required on field State/Province in Add New Address in 'my address book'.

Answer 1

You can select State Required for particular Country from backend using the below path:

Stores-> Configuration -> General -> State Options

here select country in State is Required for dropdown.

Answer 2

Go to Admin > Stores > Settings > Configuration > General > General > State Options > State is Required for, here select the countries for those state needs to be required.