Postcode SO18
Bitterne +1 · Hampshire, England
SO18 is the postcode of Bitterne, Swaythling in Hampshire, England, United Kingdom. This list covers outward codes — the first half of a UK postcode, such as M9 or BN91 — not full postcodes.
- Postcode
- SO18
- County
- Hampshire
- Country
- England
- Country
- United Kingdom
2 places with postcode SO18
| Place | County | Location |
|---|---|---|
| Bitterne | Hampshire | 50.915, -1.359 |
| Swaythling | Hampshire | 50.937, -1.378 |
Near London
The nearest major city is London, about 108 km away.
Nearby postcodes
Frequently asked questions
Which places use postcode SO18?
Bitterne, Swaythling.
Which county and country is SO18 in?
Hampshire, England, United Kingdom.
What is the nearest major city to SO18?
London, about 108 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.