There are two types of USPS Priority Mail® Regional Rate boxes:

  • USPS Regional Rate Box A: Shipments of up to 15 lbs.
  • USPS Regional Rate Box B: Shipments of up to 20 lbs.

Unlike flat rate boxes which cost the same regardless of destination, the rate you pay for Regional Rate boxes varies based on how far you are sending them (e.g. what zone or “region”). However, in a sense it is a “flat” rate because the shipping costs the same, regardless of weight, for packages shipped to the same “zone.” Most online merchants can find savings by using Regional Rate boxes within their shipping service mix.

Claimants early on this list, and at the bottom of our chart of hierarchy, have low priority in the property. If debtors have limited amounts of property, these low-priority claimants will usually get little or nothing. Conversely, claimants late on this list who are high on the chart of priority. The Priority chart graphs which of your tasks have Urgent, Important, Medium, or Low priority. If you see too many late tasks in the Urgent column, you can use the Filter tool to show all urgent tasks and see if they are all assigned to the same person or in the same bucket, and use this information to. Visualize each project as a matrix, in your calendar or in Gantt chart mode; Intelligent due date detection: Enter tasks like 'buy milk tomorrow afternoon' Smart reminder system: 'Remind everyone in 30 minutes' or 'Remind me next Tuesday' A free Priority Matrix account is necessary to.

One important detail to remember: Regional Rates are strictly an online service. You can’t get the boxes at your local post office, and if you buy the postage for them at the post office, they will add a fee to the overall price.

Your shipping software can tell you when to use Regional Rate and when to use Flat Rate. Try ShippingEasy free for 30 days!

For example, if you ship a 10 lb. package across the country from Houston, TX to New York, NY, here are the rates:

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  • Priority Mail® Medium Flat Rate Box costs $13.20 (ShippingEasy rate)
  • Priority Mail® costs $26.67 (ShippingEasy rate)
  • Priority Mail® Regional Rate Box A costs only $10.42 (ShippingEasy rate)

What are the Zone Charts and how can I obtain one? Priority Rules for Naming Chiral Centers - The R,S System 1. Prioritize the four atoms, or groups of atoms, attached to the chiral center based on the atomic number of the atom that is bonded directly to the chiral center. The higher the atomic number, the higher the priority.! Number the four atoms, or groups of atoms, such that “1” has.

SAVINGS on postage: $2.78 – $16.27

If you ship this same 10 lb. package closer to home (where Regional Rate excels) from Houston, TX to Austin, TX, look at the rates:

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  • Priority Mail® Medium Flat Rate Box costs $13.20 (ShippingEasy rate)
  • Priority Mail® costs $9.76 (ShippingEasy rate)
  • Priority Mail® Regional Rate Box A costs only $7.68 (ShippingEasy rate)

SAVINGS on postage: $2.08 – $5.52

Get USPS Regional Rate Boxes Free

The cost of flat rate boxes and regional rate boxes is free, and you can order them from

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All Regional Rate box sizes are listed below, where you can view and order each individual box at the following links:

Which carrier wins?See 3 scenarios comparing USPS, FedEx, and UPS.

Find USPS Shipping Zones provides a tool to quickly find out which zone your package falls into depending on the starting location and ending location of where it will travel. Use this Calculate Zone Tool to find out which Zone your item falls under. From there you can easily check its regional rate.

2020 Regional Rate & Zone Chart

Here are the new rates for 2020 on Regional Rates. You can see there are increases, but it’s still a valuable service that can beat Priority Rate and Flat Rate with their incoming increases as well.

USPS Regional Rate
Box A
Commercial Rates
Commercial Rates
Price Increase
Zones 1 & 2$7.65$7.68$0.03
Zone 3$7.85$7.92$0.07
Zone 4$8.12$8.21$0.09
Zone 5$8.76$8.92$0.16
Zone 6$10.00$10.42$0.42
Zone 7$10.55$11.13$0.58
Zone 8$11.20$12.10$0.90
Zone 9$15.64$18.69$3.05

USPS Regional Rate
Box B
Commercial Rates
Commercial Rates
Price Increase
Zones 1 & 2$8.05$8.07$0.02
Zone 3$8.50$8.51$0.01
Zone 4$9.40$9.42$0.02
Zone 5$10.65$11.53$0.88
Zone 6$16.15$16.72$0.57
Zone 7$18.47$19.21$0.74
Zone 8$21.03$21.89$0.86
Zone 9$29.73$34.38$4.65

A1 and A2 box dimensions: (<15 lbs)

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  • 10″ x 7″ x 4 3/4″
  • 12 13/16″ x 10 15/16″ x 2 3/8″

B1 and B2 box dimensions: (<20 lbs)

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  • 12″ x 10 1/4″ x 5″
  • 15 7/8″ x 14 3/8″ x 2 7/8″

Available online only. Neither rates nor boxes available at Post Office.

USPS Priority Mail Rate & Zone Chart for Comparison

Priority Mail
L, 1 & 2Zone 3Zone 4Zone 5Zone 6Zone 7Zone 8Zone 9

Learn about all the 2020 USPS shipping rate changes by downloading our free guide, complete with charts, carrier comparisons, and best practices to save on shipping. Click below to download the guide now!


  • USPS Discounted Pricing available on ShippingEasy

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  • USPS 2021 Shipping Rate Changes: Flat Rate, Priority, First Class, w/Tables - November 16, 2020