Yes, you can change your billing address information under your Apple account. Or your other option is you can alter where you want the Carrier to deliver the iPhone under preferences.
Good to know, but...
I seem recall last year for the iPhone 7 preorder...we could change the address on my Apple account settings before the preordering went live, but it defaulted back to the original address during the preorder process (and the shipping address fields were grayed and blocked out?). Maybe this is an carrier policy? I'm with AT&T.