A credit card's zip code is an additional form of security used to verify that it is being used by the cardholder or an authorized user. It is linked to the five-digit postcode of the cardholder's billing address.

Where is the zip code on a debit card?

The address which you gave to the bank or credit score union on your account contains the postal code of your card. As an instance, if you acquire mail at any number principal road in any number, and that's the cope with that the financial institution has for the account, then the cardboard's zip code is 12345.

How do I know what my zip code is?

USPS.com. To find a zip code with USPS.com, you need to fill in the fields with your USA street address, city, and state. Then click Find and you'll get your postal code.