Castlereagh (Northern Ireland) Postcode Finder
Interactive map of postcodes in Castlereagh, Northern Ireland. Click on the map to find the full postcode for your mails destination.
Full postcode list for Castlereagh, Northern Ireland
Click on the outward code in the list below to find your inward code. Join two codes with a space to get the full postcode.
Postcodes for other cities in Northern Ireland
How to find your postcode
Get a full postcode in Castlereagh, Northern Ireland by clicking on the interactive map or found your outward post code on our list above. Also available, address search for postcodes. Just enter your address into the search bar to locate the postal code you need for your mail.