Castlerock is a village in County Londonderry, Northern Ireland.

It is situated within the BT51 postcode district, which is within the Coleraine post town.

The full list of postcode districts within the Coleraine post town is as follows:

The Coleraine post town is within the Northern Ireland postcode area.


Key data for Castlerock:

A map showing the location of Castlerock within the BT51 postcode district