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Caerphilly is a post town.

The Caerphilly postcode town comprises the following postcode district(s):

The Caerphilly postcode town is within the Cardiff postcode area (also known as the CF postcode area).

The postcodes of the other post towns within the Cardiff postcode area are as follows:

Villages within the Caerphilly post town:

A map of the Caerphilly postcode town