Postal Codes for Castlereagh, Northern Ireland
The postal codes for Castlereagh, Northern Ireland, United Kingdom (2 codes, e.g. BT5). With map location and coordinates.
✓ Verified data
The postal codes for Castlereagh, Northern Ireland, United Kingdom (2 codes):
| Postal code | Place | County / area | Coordinates |
|---|---|---|---|
| BT5 | Castlereagh | County Antrim | 54.574, -5.885 |
| BT6 | Castlereagh | Belfast Greater | 54.574, -5.885 |
‹ All postal codes in Northern Ireland
Frequently asked questions
What is the postal code of Castlereagh?
Castlereagh has 2 postal codes; the first is BT5. They are all listed above with their areas.
Why does Castlereagh have more than one postal code?
Larger towns and cities are split into several postal-code areas, each serving a different neighbourhood, PO-box range or large organisation.