In The U.S. Post Office Zip Code System, What Does Zip Stand For

Las Vegas Nevada Zip Codes Zones Map
Las Vegas Zip Code Zones Map

In the U.S. Post Office, “ZIP” stands for “Zone Improvement Plan.” The United States Postal Service (USPS) instituted the ZIP Code system in 1963 to improve the efficiency of mail delivery. The idea was to streamline the process by dividing the country into different zones, indicated by the numbers in the ZIP Code, to make sorting and delivering mail faster and more accurate.

Miami Florida Zip Code Map
Miami Zip Code Map

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