Understanding the National Zone Charts Matrix

UPDATED: July 12, 2018

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

Postage rates for zoned mail using these zone assignments are calculated based on:

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

The Zone Charts Matrix helps determine the distance that a mail piece travels, given:

  • the ZIP Code™ where the mail piece starts (origination point) and 
  • the ZIP Code where the mail piece is delivered (destination point

Select the Zone Chart for your mail piece:


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