Postcode CO4
Blacksmith's Corner +5 · Essex, England
CO4 is the postcode of Blacksmith's Corner, Boxted, Boxted Cross and 3 other places in Essex, England, United Kingdom. This list covers outward codes — the first half of a UK postcode, such as M9 or BN91 — not full postcodes.
- Postcode
- CO4
- County
- Essex
- Country
- England
- Country
- United Kingdom
6 places with postcode CO4
| Place | County | Location |
|---|---|---|
| Blacksmith's Corner | Essex | 51.909, 0.921 |
| Boxted | Essex | 51.950, 0.917 |
| Boxted Cross | Essex | 51.909, 0.921 |
| Langham | Essex | 51.949, 0.943 |
| Langham Moor | Essex | 51.909, 0.921 |
| Mile End | Essex | 51.917, 0.900 |
Near London
The nearest major city is London, about 86 km away.
Nearby postcodes
Frequently asked questions
Which places use postcode CO4?
Blacksmith's Corner, Boxted, Boxted Cross, Langham, Langham Moor, Mile End.
Which county and country is CO4 in?
Essex, England, United Kingdom.
What is the nearest major city to CO4?
London, about 86 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.