Why are zip codes and postal codes important when it comes to credit card transactions and when do they overlap for Canadian credit card users?

ZIP codes are five-digit numbers, such as the famous 90210. Why credit card postal codes and ZIP codes matter Your postal code or ZIP code acts as a security measure.

On July 1, 1963, the U.S. Post Office Department introduced the ZIP code program to get a handle on the heaping surplus of mail. Today, those five digits represent much more for American society.

A recent study compares postal zones, ranking those with the most in-demand listings and the fastest-selling homes.