Your billing zip code, or credit card postal code, is the five-digit number on the bottom right, which in this sample is 90210. This would be the zip code associated with your billing address. It ...

Learn the history and meaning of usps postal codes, why it's called a ZIP code, whether a postal code is a ZIP code, and what ZIP code numbers stand for.

Here's what to know on how to address an envelope, write a return address, find a zip code, send letters internationally and figure out which stamps are best.

You can use an online mapping service if you need to find the zip code for a specific address. Simply enter the address, and the mapping service will return the zip code for that location.

What exactly is a billing ZIP code, and why do credit cards need it? Billing ZIP codes are a crucial aspect of credit card security, helping to prevent fraud and ensure authorized transactions.