Learn about USPS mailbox locks, keys, and guidelines for secure mail delivery and maintenance.

keys or lock combination, you need to visit the Post Office during business hours. For more... How to apply, pay for, renew, close, transfer, refund a Post Office Box.

Learn how to replace mailbox keys and find answers to other USPS-related questions on the official USPS FAQ page.

Locked Mailboxes Mailbox Keys Duplicate Keys Key Found in Mailbox Lost, Stolen, or Broken...Information if your mailbox key is lost or stolen or needs to be replaced.

Locked Mailboxes Mailbox Keys Duplicate Keys Key Found in Mailbox Lost, Stolen, or Broken...Information if your mailbox key is lost or stolen or needs to be replaced.

Postal Service will have to install a new lock and issue a new set of keys at the customer's expense...Information if your mailbox key is lost or stolen or needs to be replaced.

Get information on replacing a mailbox key and related USPS guidelines.

The Postal Service™ neither opens a locked box nor accepts a key for...Information if your mailbox key is lost or stolen or needs to be replaced. The United States

Locked Mailboxes Mailbox Keys Duplicate Keys Key Found in Mailbox Lost, Stolen, or Broken...Information if your mailbox key is lost or stolen or needs to be replaced.

Locked Mailboxes Mailbox Keys Duplicate Keys Key Found in Mailbox Lost, Stolen, or Broken...Information if your mailbox key is lost or stolen or needs to be replaced.