_____ _____
Global Sourcebook for International Data Management
by Graham Rhind
Guernsey consists of the Channel Islands of Guernsey, Alderney , Sark and Herm (along with some other, uninhabited, islands). It is a Crown Dependency, and therefore not part of the United Kingdom. Except in matters of foreign affairs and defence, it is effectively an independent nation, and its inhabitants are fiercely proud of their status. The words ‘United Kingdom’, ‘Great Britain’ or ‘England’ should not be used in addresses - it is better to use ‘Channel Islands’.
For supplementary information, see links to post office home pages here , to postal code pages here and to other personal name and addressing issues pages here .
Table of Contents |
Note: This section last updated 26th April 2021
1,234.45
(where . indicates the decimal separator and , the thousands separator)
Note: This section last updated 26th April 2021
dd/mm/yyyy
Both the 12-hour and 24-hour clock notations are used.
14:32
English is the official language. A Norman patois, which has no written form, is spoken in some parishes.
These company types exist in Guernsey
Branch of an overseas’ company Company limited by guarantee Exempt insurance company Exempt investment scheme Exempt private company General partnership International company International trust Limited partnership Private company limited by shares Trust
Comprehensive tables of these strings can be acquired – see http:www.grcdi.nl/addresses.htm
Note: This section last updated 16th July 2020
To a great extent, the same rules and formats apply as in the United Kingdom. The settlement name used is usually that of the parish . These parishes are:
Castel Forest St Andrew’s St Martin’s St Peters in the Wood St Peter Port St Sampson’s St Saviour’s Torteval Vale
The name of the island (Guernsey, Alderney, Herm or Sark) is also written. The address is therefore structured as follows:
Contact name {Job Title} {Company Name} {Building Name} {number[ ]}Thoroughfare name[ ]Thoroughfare type PARISH Island POSTAL CODE
Apart from social housing, most residences in Guernsey are named rather than numbered, and often new residents change the name, so addresses change often.
Street name boards in St Peter Port. Source: Wikipedia
A table containing information about the relevant position of elements within address blocks can be acquired
This is written PO Box.
A postal code (known locally as Postcode) system was introduced into Guernsey only in June 1993. Each postal code begins with the letters GY. The format of the code is:
[GY]9[ ]9AA
or
[GY]99[ ]9AA
For example:
GY2 2BT
GY9 codes cover Alderney and GY10 Sark.
Metadata containing postal code formatting rules, exceptions and regular expressions can be acquired
n/a.
\A((GY)[0-9]( )[0-9][A-Z][A-Z]|(GY)[0-9][0-9]( )[0-9][A-Z][A-Z])\Z
n/a
Note: This section last updated 22nd January 2016
Refer to Exonyms in Guernsey for full lists of place names in Guernsey in other languages.
Guernsey has 10 parishes, used in addresses. Please refer to the section “Personal names, addresses” above for a list of these parishes.
Every effort is made to keep this resource updated. If you find any errors, or have any questions or requests, please don't hesitate to contact the author.
All information copyright Graham Rhind 2024. Any information used should be acknowledged and referenced.