How to Choosing the Right PO Box Sizes and Costs for Your Needs?

In our fast-paced digital era, the significance of a secure and reliable mailing solution is more pronounced than ever. This is where the convenience and security of a Post Office (PO) Box come into play. Now, applying for a PO Box is easier than ever, thanks to the online application process. This not only saves time but also adds a layer of convenience that aligns perfectly with the needs of today’s online-centric lifestyle.

Whether you’re a busy entrepreneur, a world traveler, or someone seeking additional privacy and security for your mail, a PO Box offers a versatile solution. The shift to an online application process reflects a modern approach to traditional postal services, simplifying the way we manage our mail.

Through this guide, we’ll explore the various aspects of PO Boxes, including their costs, benefits, and how to choose the right option for your unique needs. From the comfort of your home or office, learn how you can easily secure a PO Box for your mail handling needs.

What is a PO Box?

A Post Office (PO) Box is a privately rented mailbox located within a postal facility. It’s used for receiving mail and packages securely, offering an alternative to traditional home or business mail delivery.

Benefits of a PO Box

  • 24/7 Access: Many post office locations offer round-the-clock access to PO Boxes, allowing you to collect your mail at any time that’s convenient for you.
  • Street Addressing for Packages: Some post offices provide a street addressing service for PO Boxes. This means you can receive packages from different carriers that normally require a street address.
  • Signature on File: For added convenience, you can have your signature on file with the post office. This allows them to accept and securely hold packages that require a signature upon delivery.

PO Box sizes and pricing

XS – Size 1

Holds 10-15 letters and 3 rolled magazines.

Size: 3″ X 5.5″

Starting Price: $4.67/mo*

Ideal for:

The extra-small PO Box is ideal for small business owners or households who need a PO Box address and are able to check their box frequently (to ensure it doesn’t fill up with mail).


S – Size 2

Holds 15+ letters, 5 rolled magazines, or 1 Small Priority Mail Flat Rate Box.

Size: 5″ X 5.5″

Starting Price: $6.00/mo*

Ideal for:

The small PO Box is ideal for small business owners and households who receive multiple letters, bills, and a few bubble envelopes or magazines throughout the week.


M – Size 3

Allows large envelopes and magazines to be stacked, and 2 Small Priority Mail Flat Rate Boxes.

Size: 5.5″ X 11″

Starting Price: $9.00/mo*

Ideal for:

The medium PO Box is ideal for small business owners and households who get multiple pieces of mail per day, and want their magazines and most large envelopes to fit without being folded.


L – Size 4

Holds Small and Medium Priority Mail Flat Rate Boxes and still has room for 10-15 letters.

Size: 11″ X 11″

Starting Price: $13.33/mo*

Ideal for:

The large PO Box is a good size for a small business owner who regularly receives packages, boxes, or multiple letters each day.

This size is also ideal for a household that makes purchases online and still wants space for their regular mail.


XL – Size 5

Big enough for multiple packages.

Size: 12″ X 22.5″

Starting Price: $23.67/mo*

Ideal for:

The extra-large PO Box is ideal for a small business owner who frequently receives multiple packages and mail of varying sizes.

This is also a great size option for a household that receives lots of packages from online merchants.

4 thoughts on “How to Choosing the Right PO Box Sizes and Costs for Your Needs?”

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