What are some residential mailbox laws?


Quick Answer

Residential mailboxes on posts must be from 41 inches to 45 inches above ground level. Posted mailboxes must be 6 inches to 8 inches back from a raised curb. The apartment number or street address must appear on the outside of the mailbox, according to USPS regulations.

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Full Answer

If a residential mailbox is located on a street that is different from where the residence is physically located, the full address must appear on the box. A mail carrier must be able to access mailboxes attached to buildings easily.

The Federal Highway Administration recommends attaching mailboxes to 4-inch by 4-inch wooden posts or 2-inch diameter aluminum or standard steel pipe. Installers should bury posts no more than 24 inches deep.

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