Where Can You Find a Nine-Digit Zip Code?

By Staff WriterLast Updated Apr 1, 2020 12:30:26 AM ET
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Nine-digit zip codes can be found on the U.S. Postal Service's website. Under the "quick tools" is an option to find a zip code. It prompts the user to enter an address and then locates the USPS ZIP+4 code.

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