British Indian Ocean Territory Postal Codes

British Indian Ocean Territory uses postal codes in the format BBND 1ZZ (# = digit). 1 postal codes are recorded for British Indian Ocean Territory in the open data sources below.

Postal codes by town and city

1 places in British Indian Ocean Territory have a recorded postal code. The 0 largest have their own page; the rest are listed alphabetically.

Browse every place A–Z

B

Example postal codes

• BBND 1ZZ

Postal codes by place

Places in British Indian Ocean Territory with a recorded postal code.

How an address is written in British Indian Ocean Territory

This is the order British Indian Ocean Territory's postal service expects. Square brackets mark what you replace.

[Recipient name]
[Street address]
[City]
[Postal code (BBND 1ZZ)]
BRITISH INDIAN OCEAN TERRITORY

A postal code is required in a complete British Indian Ocean Territory address. The postal code should be written in capital letters.

Country reference

Sources and licensing

Postal code data from GeoNames, used under the Creative Commons Attribution 4.0 International licence. Address formats and validation rules derive from Google's international address metadata, cross-checked against Universal Postal Union addressing standards. Last verified August 2026. Confirm time-critical addresses with the destination country's postal operator.