The postal-codes of Castlereagh is BT5. The City of Castlereagh is in County Antrim. The country of County Antrim is Northern Ireland (NIR)
The castlereagh postcode region (AB) contains 34 unique 'outward' codes. castlereagh is the main postal town or district for this region, with all castlereagh postcodes starting with the following outward codes.
This page contains a list of postcodes for castlereagh area. Select a castlereagh postcode to see the map location, demographics, house prices, local information, tourist guides and statistics:
There are a number of local information, guides and useful data to browse and explore, whether you're a castlereagh resident or a visitor to the castlereagh area.