Does IP18 flood?

Yes — parts of the IP18 district carry real flood risk: 18 of its 62 at-risk postcodes reach the Environment Agency's High likelihood band. The IP18 postcode district covers Southwold, Wrentham, Wangford & Westleton and surrounding villages in Suffolk.

62 postcodes in the IP18 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 18 high, 4 medium, 17 low, 23 very low. A postcode not listed here has no properties in any recorded risk band (which is good news, but never proof it cannot flood).

Free preview first · full report £19

Which IP18 postcodes are at risk?

IP18 6BN up to High IP18 6EY up to High IP18 6HQ up to High IP18 6LT up to High IP18 6NB up to High IP18 6ND up to High IP18 6SB up to High IP18 6SF up to High IP18 6SG up to High IP18 6SH up to High IP18 6SN up to High IP18 6TA up to High IP18 6TD up to High IP18 6TH up to High IP18 6TJ up to High IP18 6TR up to High IP18 6UD up to High IP18 6UQ up to High IP18 6AZ up to Medium IP18 6BH up to Medium IP18 6RH up to Medium IP18 6RR up to Medium IP18 6BB up to Low IP18 6BE up to Low IP18 6EL up to Low IP18 6HE up to Low IP18 6HG up to Low IP18 6HJ up to Low IP18 6LP up to Low IP18 6LU up to Low IP18 6SQ up to Low IP18 6TL up to Low IP18 6TN up to Low IP18 6TS up to Low IP18 6TT up to Low IP18 6TU up to Low IP18 6TX up to Low IP18 6TY up to Low IP18 6UA up to Low IP18 6BG up to Very low IP18 6BJ up to Very low IP18 6BL up to Very low IP18 6BQ up to Very low IP18 6DH up to Very low IP18 6DR up to Very low IP18 6DU up to Very low IP18 6GZ up to Very low IP18 6HR up to Very low IP18 6NF up to Very low IP18 6NQ up to Very low IP18 6NW up to Very low IP18 6PS up to Very low IP18 6PT up to Very low IP18 6RD up to Very low IP18 6RE up to Very low IP18 6RF up to Very low IP18 6RG up to Very low IP18 6RL up to Very low IP18 6RN up to Very low IP18 6RS up to Very low IP18 6TZ up to Very low IP18 6YB up to Very low

Rivers and flooding history near IP18

The rivers that matter here, each monitored live on FloodRadar:

247 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (63 at warning level or above), most recently 14 August 2026. Warnings cover flood areas, not individual addresses.

Recorded flood extents near the district (Environment Agency record):

Records, not floods: no outline on the record is not evidence a place has not flooded.

🏠 Buying or renting in IP18? The full property flood-risk report covers any postcode here — the official likelihood band, every recorded flood nearby with distances, warning history year by year, how the local rivers behave, and an insurance outlook, print-ready for £19. See what's in the report →

Flood risk in nearby postcode districts

IP17 IP19 IP16 IP20 IP15 IP21 IP14 IP22

Band = the worst likelihood band of any property in that postcode (EA Risk of Flooding from Rivers & Sea, defence-adjusted, area-level). Check any postcode in detail — or get the full £19 property report — at the property flood-risk report. © Environment Agency copyright and/or database right 2025. All rights reserved. Some features of this map are based on digital spatial data from the Centre for Ecology & Hydrology, © NERC (CEH). © Crown Copyright and Database Rights 2025 OS AC0000807064. This product is produced in part from PAF® and Multiple Residence Data, the copyright in which is owned by Royal Mail Group Limited and/or Royal Mail Group plc. All rights reserved. Licence number AC0000807064.