Zones are a tool used by USPS to measure the actual distance a package must travel. Zones range from Zone 1 (local) to Zone 9 (very far away). A zone is determined by the "ship from" zip code as it relates to the "ship to" zip code. The farther a package must travel, the more zones it crosses, and the more it costs to ship it.
If a weight- or dimensional-based service is selected, then the zone will factor into the overall cost of the service.
Zoned services
Priority Mail Express and Priority Mail: See our rate tables to determine shipping cost between zone.
Priority Mail Regional Rate: Zoned service that uses different packages to save you money. Learn more.
Zone-exempt services
Flat Rate package types: Available for packages up to 70 lbs. Learn more.
First Class Package Service: Available only for packages less than 1 lb. Learn more.
Endicia provides a dynamic map illustrating zones across the country based on your zip code. Go to Endicia's zone map.
USPS provides a detailed breakdown of zones based on specific sets of zip codes. Go to USPS' look up tool.
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What is Priority Mail Regional Rate shipping?
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What Canadian zone will be used for my Priority Mail International rate?
What is the most cost effective way to ship via USPS?
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