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Mail is delivered via private letterboxes at post offices because there is no home delivery of mail in the Cayman Islands other than by express service. For effective mail/parcel delivery, there must be a P.O. Box reference included in the address.

At present, there are about 11,000 private letterboxes located at the 15 Post Offices within the Cayman Islands. There are three sizes of Post Office boxes: small, medium and large. Most of these boxes are located outside Post Offices; only at the General Post are some boxes located inside.

Rental Fee

  • Annual rent of a large box (accessible at all times) $250
  • Medium box (accessible at all times) $100
  • Small box (accessible at all times) $75
  • Large box (accessible only during Post Office working hours) $150
  • Small box (accessible only during Post Office working hours) $30
  • Private bag $300
  • The annual rent should be paid in advance and becomes due on the anniversary that the rent was first paid.


One key is issued to the owner of the box and if the key is lost the renter will be responsible for replacing the key at a cost of $30.

The renter of the box should inform the Postmaster General, in writing, who can receive mail at his/her box. In the event that the renter has to leave the island and wishes to transfer the box to a person already listed on the rental agreement, the renter should do so in writing.

The renter of a bag or box should notify the Postmaster General of his/her intention to give up his/her bag or box at least one month before the date of expiry.

A renter should not transfer his/her private bag or private box to any other person.

See Postal Regulations for more information.

Delivery Times in Days

Destination Surface Parcels Surface Mail Air Parcel Air Mail EMS
Australia17 to 2127 to 6917 to 2517 to 246 to 11
Barbados19 to 21 13 to 167 to 117 to 105 to 7
Bermuda16 to 2012 to 159 to 147 to 125 to 8
Canada17 to 2012 to 269 to 147 to 144 to 9
Germany18 to 1914 to 199 to 118 to 115 to 8
Great Britain (UK)20 to 2413 to 2011 to 147 to 105 to 10
Jamaica17 to 1912 to 178 to 107 to 123 to 9
Sweden19 to 21 14 to1810 to 137 to 115 to 8
Switzerland19 to 21 14 to 179 to 127 to 95 to 8
Trinidad18 to 209 to 128 to 15 6 to 114 to 7
USA17 to 2611 to 238 to 115 to 84 to 6