Postcode BT6
Belfast +5 · Belfast Greater, Northern Ireland
BT6 is the postcode of Belfast, Belfast South East, Castlereagh and 3 other places in Belfast Greater, Northern Ireland, United Kingdom. This list covers outward codes — the first half of a UK postcode, such as M9 or BN91 — not full postcodes.
- Postcode
- BT6
- County
- Belfast Greater
- Country
- Northern Ireland
- Country
- United Kingdom
6 places with postcode BT6
| Place | County | Location |
|---|---|---|
| Belfast | — | 54.583, -5.933 |
| Belfast South East | Belfast Greater | 54.570, -5.882 |
| Castlereagh | Belfast Greater | 54.574, -5.885 |
| Cregagh | Belfast Greater | 54.570, -5.882 |
| Knockbreda | Belfast Greater | 54.570, -5.882 |
| Woodstock | Belfast Greater | 54.570, -5.882 |
Nearby postcodes
Frequently asked questions
Which places use postcode BT6?
Belfast, Belfast South East, Castlereagh, Cregagh, Knockbreda, Woodstock.
Which county and country is BT6 in?
Belfast Greater, Northern Ireland, United Kingdom.
Source: GeoNames postal codes (CC BY 4.0), geonames.org, retrieved 2026-10-22. Place coordinates are approximate. Check with the national postal service before sending anything valuable.