One of the most important breakthroughs in modern communication lies in an overlooked place. It’s printed onto envelopes, just below the address. Although we think nothing of the ZIP Code these days, ...

The U.S. Postal Service opposes two House bills that propose to add 76 new ZIP codes across the country, citing a financial burden and harm to mail delivery service. Díaz-Balart’s legislation passed ...

This post may contain links from our sponsors and affiliates, and Flywheel Publishing may receive compensation for actions taken through them. A letter without a ZIP code may not reach its intended ...

That used to be the ZIP code for Silver Cliff, Colorado, before the U.S. Postal Service removed it from use and forced the town to use neighboring Westcliffe’s ZIP code. “We lost our identity,” said ...

As long as the mail is being delivered with no problems, USPS is unlikely to build something new for city, letter writer says.