On July 1, 1963, zip codes were introduced to improve mail delivery in the United States. 📬📨💌📬 This aim is reflected in the name - the “ZIP” in “zip codes” is an abbreviation for “zone improvement plan.” Did you know? You may know that zip code numbers get higher as one moves geographically from east […]

On July 1, 1963, zip codes were introduced to improve mail delivery in the United States. 📬📨💌📬 This aim is reflected in the name - the “ZIP” in “zip codes” is an abbreviation for “zone improvement plan.” Did you know? You may know that zip code numbers get higher as one moves geographically from east […]