Looking for an individual postcode in Caernarfon? Use our postcode finder tool.
Caernarfon is a post town.
The Caernarfon postcode town comprises the following postcode district(s):
The Caernarfon postcode town is within the Llandudno postcode area (also known as the LL postcode area).
The postcodes of the other post towns within the Llandudno postcode area are as follows: