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Zone Charts
The Official National Zone Charts identify the appropriate distance code assigned to each originating and destination pairing for every ZIP Code in the nation. These distance codes, referred to as zones, are designated as "Local" and "1 through 8". Zone charts create a matrix of originating and destination ZIP Codes which identify the correct zone for the distance.
Zone Charts are produced by the USPS using the geological survey files of established latitude and longitude coordinates to determine the distance between origin and destinating ZIP Code pairings. The files include all ZIP Codes listed in the City State Product.
Order forms are available for mailers who want to purchase a complete set of Official National Zone Charts, which are available on electronic media and/or hard copy. There is also a Zone Chart Lookup for any individual 3-digit ZIP.
To subscribe to the Zone
Charts CD-ROM, download and complete the Zone Charts Order Form at ribbs.usps.gov/files/labeling_list
and send the original to the address on the order form.
For additional information, please call the
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