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.

For some credit card purchases in Canada, a postal code is required as a security measure. If using a credit card in the U.S., you may need to use a ZIP code instead.

During the pandemic, home prices in cities and towns across the country have been rising. But what does that trend look like if you dig down to the ZIP code level to get a granular view of where ...