Postcode IP18
Blackwater +2 · Suffolk, England
IP18 is the postcode of Blackwater, Reydon, Southwold in Suffolk, England, United Kingdom. This list covers outward codes — the first half of a UK postcode, such as M9 or BN91 — not full postcodes.
- Postcode
- IP18
- County
- Suffolk
- Country
- England
- Country
- United Kingdom
3 places with postcode IP18
| Place | County | Location |
|---|---|---|
| Blackwater | Suffolk | 52.331, 1.669 |
| Reydon | Suffolk | 52.339, 1.666 |
| Southwold | Suffolk | 52.328, 1.680 |
Nearby postcodes
Frequently asked questions
Which places use postcode IP18?
Blackwater, Reydon, Southwold.
Which county and country is IP18 in?
Suffolk, England, United Kingdom.
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.