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Guernsey Postal codes

Guernsey

GY1 1AAEurope6 chars
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Total Codes

11

Code Length

6 chars

Provinces

11

Admin Levels

1

Interactive Map

Explore Guernsey's 11 provinces with our interactive map.

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Find Post Offices

Locate post offices across Guernsey. Find addresses and contact information.

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Understanding Guernsey Postal codes

Developers testing checkout for Guernsey should fixture 6-character alphanumeric samples like GY1 1AA; GG validators differ from neighboring.

Key Characteristics

Code Type

Numeric

Administered By

National Postal Service

Coverage

Nationwide

Postal code format breakdown

Guernsey uses alphanumeric postal codes with 6 characters (example: GY1 1AA). In our directory, these codes are organized from provinces down to villages.

Visual Structure

G
Y
1
1
A
A

Developers testing checkout for Guernsey should fixture 6-character alphanumeric samples like GY1 1AA; GG validators differ from neighboring.

Administrative Hierarchy

How Guernsey organises areas for postal codes

Provinces(11)
1

Province

11 total
Browse all provinces

Provinces Directory

Browse all 11 top-level divisions

Saint Pierre du Bois
Torteval
Saint Saviour
Forest
Saint Martin
Saint Andrew
Saint Peter Port
Castel
Vale
Saint Sampson
Alderney

Addressing Mail to Guernsey

Step-by-step guide for correct address formatting

1
Recipient name
2
Street address or PO Box
3
City, State/Province, Postal code
4
Country name

Sample Address Block

Name; Street; City, State Postcode; Country

Delivery Best Practices

Tips for successful mail and package delivery

Always verify the postal code

Verify your postal code is complete (6 characters) before sending. Use our lookup tool to confirm accuracy.

Include all address levels

Write the full address hierarchy for best results.

Avoid abbreviations

Write out full province names to prevent sorting errors.

Don't omit the postal code

Missing postal codes cause significant delivery delays and may result in returned mail.

Shipping to Guernsey

What to know when sending packages

Standard domestic delivery within Guernsey typically takes 2–7 business days. International packages require complete address information including the postal code. Always include the correct 6-character code for fastest routing.

Frequently Asked Questions

Common questions about Guernsey postal codes

What is the postal code format for Guernsey?

Guernsey uses 6 characters in the postal code. An example is GY1 1AA. Developers testing checkout for Guernsey should fixture 6-character alphanumeric samples like GY1 1AA; GG validators differ from neighboring.

How many provinces does Guernsey have?

Guernsey has 11 provinces with postal code coverage. Use our browse tool to explore them.

How do I find my postal code in Guernsey?

Use our free lookup or browse by province to find the exact postal code for your location.

Where do I write the postal code on a Guernsey address?

The postal code is written on the same line as or immediately after the province, before the country name when mailing internationally.