Postcode WD18
Watford · Hertfordshire, England
WD18 is the postcode of Watford in Hertfordshire, England, United Kingdom. This list covers outward codes — the first half of a UK postcode, such as M9 or BN91 — not full postcodes.
- Postcode
- WD18
- County
- Hertfordshire
- Country
- England
- Country
- United Kingdom
Place with postcode WD18
| Place | County | Location |
|---|---|---|
| Watford | Hertfordshire | 51.655, -0.396 |
Near London
The nearest major city is London, about 25 km away.
Nearby postcodes
Frequently asked questions
Which places use postcode WD18?
Watford.
Which county and country is WD18 in?
Hertfordshire, England, United Kingdom.
What is the nearest major city to WD18?
London, about 25 km away.
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.