Defining Default User Values
In a multi-site environment, it is possible for you to define default values for new users on a per site basis. To define default values:
Go to Site Administration > Users > Accounts > Profile field defaults
Select the site in question
Fill in the default values for each field
Click on the "Save changes" button at the bottom of the page
Note that the default values are inherited. In other words, if you have a structure as per the one below, defining default fields for "Canada > Ontario" would set the default values for users added to both "Canada > Ontario > Ottawa" and "Canada > Ontario >Toronto".
Sample Site Structure
Canada
Canada > Ontario
Canada > Ontario > Ottawa
Canada > Ontario > Toronto