The Legal Heights of Mailboxes

Height

• Install the mailbox at a vertical height of between 41 inches and 45 inches, measured from the bottom of the mailbox to the road surface. In the event of a curb or road hindrance that prevents installation at this height, contact your local postmaster.

Set Back

• Allow for a 6-inch to 8-inch set back from the face of the curb or the road's edge to the mailbox door.

Posts And Supports

• Mounting posts should be adequate in size and strength to support the mailbox at the proper height. They should be constructed to fall away or easily bend if struck by a vehicle. Keeping the support post neat, such as free of climbing vegetation, is the responsibility of the occupant.

Name And/Or House Number

• The occupant's name or house number on a mailbox should be in letters at least 1-inch high.