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Understanding the USPS Zone Charts Matrix

The USPS Zone Charts Matrix helps you apply the proper postage rates to a mail piece.  

Postage rates for zoned mail are calculated based on:

  • mail piece weight and 
  • the distance the mail piece travels  

The matrix determines the distance that a mail piece travels based on the first three digits of:

  • the ZIP Code™ you are mailing from (origination) and 
  • the ZIP Code you are mailing to (destination

Follow these steps to find your Zone:

  1. Identify the ZIP Code your mail piece gets mailed from (origination point)
  2. Identify the ZIP Code your mail piece is going to (destination point)
  3. Select the Get Zone for ZIP Code Pair tab on the Domestic Zone Chart page.
  4. Enter your origination and destination ZIP Codes.
  5. Click Submit.
  6. Note your Zone.

See the USPS Price List to find your postage rates for your mail piece when using Zone Charts.

Important: These are USPS resources. For questions or assistance, contact the USPS or your local Post Office.

Related Resources:

UPDATED: February 25, 2019