Postcode CM20
Eastwick +2 · Hertfordshire, England
CM20 is the postcode of Eastwick, Gilston Park, Little Parndon 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
- CM20
- County
- Hertfordshire, Essex
- Country
- England
- Country
- United Kingdom
3 places with postcode CM20
| Place | County | Location |
|---|---|---|
| Eastwick | Hertfordshire | 51.788, 0.085 |
| Gilston Park | Essex | 51.775, 0.102 |
| Little Parndon | Essex | 51.775, 0.102 |
Near London
The nearest major city is London, about 34 km away.
Nearby postcodes
Frequently asked questions
Which places use postcode CM20?
Eastwick, Gilston Park, Little Parndon.
Which county and country is CM20 in?
Hertfordshire, Essex, England, United Kingdom.
What is the nearest major city to CM20?
London, about 34 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.