Enter any origin and destination ZIP code to get the exact USPS shipping zone, then explore the interactive map to see your zones across the country. Every result comes live from USPS, including five-digit ZIP code exceptions.
A USPS shipping zone is a number that describes how far a package travels from where it ships to where it is delivered. USPS measures the distance between the three-digit ZIP code area of the origin and the three-digit ZIP code area of the destination, then assigns a zone from 1 to 9.
Zone 1 is local. Zone 8 reaches the far side of the contiguous United States. Zone 9 covers certain U.S. territories and Pacific island destinations. Because zones are measured between ZIP code areas, not street addresses, two places the same driving distance apart can land in different zones.
USPS also makes exceptions for some five-digit ZIP code pairs, where the zone differs from what the three-digit chart suggests. The calculator above checks for these exceptions on every lookup, and hatched areas on the map show where they apply.
| Zone | Approximate distance from origin |
|---|---|
| Zone 1 | Local, up to 50 miles |
| Zone 2 | 51 to 150 miles |
| Zone 3 | 151 to 300 miles |
| Zone 4 | 301 to 600 miles |
| Zone 5 | 601 to 1,000 miles |
| Zone 6 | 1,001 to 1,400 miles |
| Zone 7 | 1,401 to 1,800 miles |
| Zone 8 | 1,801 miles or more |
| Zone 9 | Certain U.S. territories |
Distances are measured between three-digit ZIP code areas. Always confirm a specific ZIP pair with the calculator or the USPS Domestic Zone Chart.
For zone-priced services like USPS Ground Advantage and Priority Mail, the price of a label goes up with both package weight and zone. The same package can cost far more to ship to Zone 8 than to Zone 2. USPS prices Zones 1 and 2 at the same rate for these services, so most of the cost difference shows up from Zone 3 onward.
Box size matters too. USPS can charge by dimensional weight for packages larger than one cubic foot, and that dimensional price also rises by zone. Flat Rate boxes are the exception: they cost the same to any zone, which can make them a good deal for heavy items going far. For an ecommerce brand shipping hundreds or thousands of orders a month, the average zone of those orders is one of the biggest drivers of total shipping spend.
Where your inventory sits decides your shipping zones. PackYak runs two fulfillment centers, one in Salt Lake City, Utah and one in Sunman, Indiana. Store inventory in both, and each order ships from the location closer to your customer, which brings more of the country into lower zones.
Choose “Best of both PackYak locations” in the calculator to see the lowest zone available for any destination ZIP code.
of US ZIP codes are within Zone 5 when you ship from both PackYak warehouses
order accuracy guarantee at both fulfillment centers, so adding a location never costs you quality
average zone across all US ZIP codes when you ship from both PackYak warehouses
Zone figures are based on USPS domestic zone charts for October 22, 2026 from origin ZIP codes 84104 and 47041, weighted by 5-digit ZIP code area (Census 2020). Excludes Puerto Rico. Shares are of ZIP codes, not population.
Serves the West Coast, the Mountain West, and the Southwest from the heart of the western US.
Serves the Midwest, the Southeast, and the East Coast from a central location in the eastern US.
Same-day shipping and itemized weekly billing with no long-term contracts. Start in one location and add the second as your volume grows.
Pick PackYak West, PackYak East, the best of both PackYak locations, or “My own origin ZIP code” to check zones from your current warehouse.
Type a five-digit destination ZIP code and select “Find shipping zone,” or click a city or region on the map to use an example ZIP from that area.
The result shows the USPS zone for that ZIP pair. Hover over the map to see zones nationwide. Darker blues are closer zones, lighter blues are farther ones.
Enter the origin ZIP code and destination ZIP code in the calculator above. It returns the zone USPS assigns to that ZIP pair for today’s date, including any five-digit ZIP code exceptions. You can also check a single pair on the USPS Domestic Zone Chart at postcalc.usps.com.
There are nine. Zones 1 through 8 cover the contiguous United States based on distance from the origin, and Zone 9 covers certain U.S. territories. Most domestic ecommerce orders land somewhere in Zones 2 through 8.
Zones are used to price postage, not to estimate delivery. Packages going to higher zones often take longer because they travel farther, but the actual transit time depends on the mail service you choose.
USPS assigns most zones using three-digit ZIP code areas, but for some specific five-digit ZIP code pairs it uses a different zone. The calculator applies these exceptions automatically, and the map marks the areas where they exist with hatching.
No. Each carrier publishes its own zone charts, so the same ZIP pair can fall in a different zone with UPS or FedEx. This tool shows USPS zones only.
Ship from closer to your customers. Splitting inventory across fulfillment centers in different regions lowers the average zone of your orders, which lowers what you pay for zone-priced services. PackYak’s fulfillment centers in Utah and Indiana are set up to do exactly that. See our fulfillment services.
Yes. The calculator is free to use with no sign-up and works for any U.S. ZIP code pair in Zones 1 through 8.
Tell us where your customers are and how much you ship. We’ll show you how splitting inventory between Utah and Indiana changes your zones and your fulfillment costs.
Get a free fulfillment quote.webp)
.png)
