In the United States, residential mailbox size and location of the box or mail slot is regulated by the United States Postal Service (USPS). Curbside mailboxes can be colorful and customized within those guidelines, but a locking box is recommended. New developments, however, generally have a centralized mailbox location with a bank of locking boxes and these cannot be customized in any way.
By law, only a USPS mail carrier is allowed to place anything in the mailbox, with the exception of outgoing mail to be picked up by the mail carrier. In curbside mailboxes, a red flag is raised on the box when there is mail for pickup. Centralized mailboxes do not have a pickup location and homeowners who have these must use another method for outgoing mail.
 Solar Group MB694AC Neo Classic Large T2 Vertical Mailbox 28.2" x 13.3" x 4.23"  US $60.00
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 Vintage Brass Mail Box with news paper Holder - porch style US $39.99
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 Whitehall Capitol Series Grand Mailbox and Post in White US $124.95
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 White METAL MAILBOX Wall Mount 10.5x9" Flap Top US $11.51
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 Fall decoative mail box Brown US $15.99
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 LOCKING MAILBOX US $75.00
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 Fall decoative mail box Brown US $15.99
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 Nautical lighthouse handpainted mail box US $25.00
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 Vintage CLEAR GLASS POSTAL MAILBOX VISIBLE MAIL US $49.99
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 NEW CAST ALUMINUM MAILBOX PREMIUM QUALITY MAIL BOX US $164.95
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 MELBOURNE MAILBOX NEW IN BOX! BLACK US $49.99
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 A OLD BLACK CAST IRON MAILBOX - WORTH A LOOK!! US $3.99
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 Wooden mail box and stand US $31.77
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 Black Metal Horizontal House-Mounted Mail Box/Copper Fleur De Lis~Paper Holder US $25.99
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 ANTIQUE GRISWOLD CAST IRON MAILBOX US $50.00
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 VTG METAL MAIL BOX WALL MOUNT NEWSPAPER HOLDER BLACK FULTON IL 16” WIDE US $14.95
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 VINTAGE METAL WALL MAILBOX WITH NEWSPAPER HOLDER - EAGLE DESIGN US $9.95
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 Vintage green metal vertical mailbox US $25.00
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 Vintage mailbox US $8.00
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 1941 Vintage USPS Old Dropoff Postal Mailbox - Carlisle Foundry Co. US $376.00
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