5 Questions
What does ZIP stand for?
Zone Improvement Plan
When was the basic 5-digit ZIP code format first introduced?
1963
What does the ZIP+4 code consist of?
An additional 4 digits after a dash
What does the USPS recommend for more rapid delivery when using ZIP codes?
Use the recommended or recognized city names
What is the purpose of the ZIP codes in the United States?
To help route mail more efficiently
Find the ZIP Code™ for any location in the United States with this convenient USPS® ZIP Code™ Lookup tool. Simply enter a street address, city, and state, or just the city and state, to instantly access the corresponding ZIP Code™. The tool also allows for reverse lookup by entering a street address and ZIP Code™.
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