Originally Posted by
florin
You can continue have a bank account, but again, if you have a debit card attached it can be difficult to get replacement cards in the absence of a US address.
As a data point, I have had my Wachovia (now Wells Fargo) bank account registered with a foreign address for >10 years now without any issues. My ATM/debit cards, statements, tax forms, etc.. arrive in Canada without any issues.
Credit cards are another story though. I haven't seen a single US issuer willing to mail to a foreign address (Amex will "transfer" your card to another country though).