Postcode BT18
Craigavad +1 · County Down, Northern Ireland
BT18 is the postcode of Craigavad, Holywood in County Down, 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
- BT18
- County
- County Down
- Country
- Northern Ireland
- Country
- United Kingdom
2 places with postcode BT18
| Place | County | Location |
|---|---|---|
| Craigavad | County Down | 54.639, -5.825 |
| Holywood | County Down | 54.639, -5.825 |
Nearby postcodes
Frequently asked questions
Which places use postcode BT18?
Craigavad, Holywood.
Which county and country is BT18 in?
County Down, 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.