Postcode HP21
Walton · Buckinghamshire, England
HP21 is the postcode of Walton in Buckinghamshire, England, United Kingdom. This list covers outward codes — the first half of a UK postcode, such as M9 or BN91 — not full postcodes.
- Postcode
- HP21
- County
- Buckinghamshire
- Country
- England
- Country
- United Kingdom
Place with postcode HP21
| Place | County | Location |
|---|---|---|
| Walton | Buckinghamshire | 51.806, -0.806 |
Near Luton
The nearest major city is Luton, about 28 km away.
Nearby postcodes
Frequently asked questions
Which places use postcode HP21?
Walton.
Which county and country is HP21 in?
Buckinghamshire, England, United Kingdom.
What is the nearest major city to HP21?
Luton, about 28 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.