Hello @RosedaleFederal ,
There is not a way to do a mass deletion of a contact's address data field unfortunately. The two ways to go about deleting/editing a contact's information is searching that one contact and selecting 'edit contact', from there you can change and add details from that screen; however this method only applies changes to that one contact.
To mass change a bunch mailing addresses at once you will need to do it from a file upload. In order to complete this, export all contacts to a file and within the address field column replace it with a '0 or N/A' or some other characters of your choosing, when you go to upload that file back in make sure that you realign the address columns with the correct selection from the dropdown choices and then select the list to upload into. Any email address from that file that is already in the system will update with the new mailing address information on that file. This will allow you to replace everyone's address with that placeholder character completing you mass deletion/edit. I have attached a knowledge base article that goes over the steps of uploading contacts from a file here for you convenience.
John M
Community & Social Media Support
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