Mailbox Rules & Regulations


To have mail delivered to a curbside mailbox, certain rules and regulations must be followed; otherwise, the postmaster may decide to withdraw mail delivery. There are certain height and distance measurement requirements, advertising restrictions and lettering requirements. Boxes need to be maintained by the owner to ensure that mail carriers are able to deliver the mail safely and efficiently without any obstructions.

Notification and Approval

  • In accordance with standards set up by the United States Postal Service, the postmaster must be contacted if you are establishing a new residential mailbox or moving an existing one. All custom-made boxes must be approved by the postmaster.

Required Identification

  • If a box number is used in the postal address, the numbers must be a contrasting color to the box and must be 1 inch tall. They must be placed on the side of the box, facing the direction of the carrier's approach. If the boxes are grouped together, the number must be on the front door. If a house number and street name has been authorized as the postal address, the house number must be 1 inch high and on the appropriate side of the box. The owner's name is not required.


  • Mailboxes must be on the right side of the road, in the direction of a carrier's travel. They must allow for safe and convenient mail delivery without the carrier having to leave his vehicle. The box must be set 6 to 8 inches back from the curb or road's edge.


  • When installing a mailbox, the bottom of the box must be 41 to 45 inches above the road's surface. If there is a situation that prevents installation within these guidelines, the postmaster must be informed. If the box has a lock, there must be a slot large enough to receive a daily amount of mail; it must be rectangular and measure at least 1 1/2 inches wide and 7 inches long.

Newspaper Receptacles

  • Newspaper receptacles are allowed to be attached to a mailbox post, provided they do not touch the box or use any portion of it for support, do not interfere with mail delivery, do not obstruct the view of the box flag and do not extend past the front of the box when the door is closed.

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