Can PO box addresses accept packages?

📦 P.O. Box Package Acceptance Policy

USPS P.O. Boxes can accept letters, flats, and packages — but with certain size and weight restrictions. Here’s what you need to know:

📏 Size & Weight Limitations

  • Weight Limit: Packages delivered by USPS can weigh up to 70 lbs.
  • Size Limit: Maximum combined length and girth (L + 2W + 2H) is 108 inches.

Note: P.O. Boxes themselves come in multiple sizes. Depth is typically around 14.75″ and the largest box (Size 5) can accommodate multiple medium packages.

🚫 Deliveries from Private Carriers

  • FedEx, UPS, DHL, etc. cannot deliver to a USPS P.O. Box unless the Post Office offers a service called “Street Addressing”.
  • Street Addressing allows private carrier deliveries but is only available at select USPS locations.
  • Contact your local USPS branch to see if this feature is enabled for your P.O. Box.

📬 What Happens If a Package Doesn’t Fit?

If a package exceeds the size of your P.O. Box:

  • USPS may place a key in your box for a larger package locker.
  • Alternatively, USPS will leave a pickup notice to retrieve your package at the counter.

📞 Need Help?

For details about your specific P.O. Box location and services, please reach out to your local USPS or contact PostScan Mail support.