Does CT20 flood?

Yes — parts of the CT20 district carry real flood risk: 18 of its 57 at-risk postcodes reach the Environment Agency's High likelihood band. The CT20 postcode district covers Sandgate & West Folkestone, close to Folkestone, Dover, Sellindge, and surrounding villages in Kent.

57 postcodes in the CT20 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 18 high, 27 medium, 6 low, 6 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 CT20 postcodes are at risk?

CT20 1QH up to High CT20 1QN up to High CT20 1QW up to High CT20 2JL up to High CT20 2JP up to High CT20 3AB up to High CT20 3AG up to High CT20 3AH up to High CT20 3AJ up to High CT20 3AL up to High CT20 3AP up to High CT20 3AQ up to High CT20 3BX up to High CT20 3BZ up to High CT20 3DA up to High CT20 3DY up to High CT20 3RP up to High CT20 3SU up to High CT20 1BN up to Medium CT20 1GB up to Medium CT20 1GX up to Medium CT20 1HJ up to Medium CT20 1HL up to Medium CT20 1HN up to Medium CT20 1HP up to Medium CT20 1HR up to Medium CT20 1HS up to Medium CT20 1HT up to Medium CT20 1HW up to Medium CT20 1JG up to Medium CT20 1JJ up to Medium CT20 1JP up to Medium CT20 1JQ up to Medium CT20 1JR up to Medium CT20 1JT up to Medium CT20 1JU up to Medium CT20 1JY up to Medium CT20 1PX up to Medium CT20 1RN up to Medium CT20 1SD up to Medium CT20 3AE up to Medium CT20 3BY up to Medium CT20 3DS up to Medium CT20 3DT up to Medium CT20 3RT up to Medium CT20 1AJ up to Low CT20 1GY up to Low CT20 1LS up to Low CT20 1LZ up to Low CT20 1QD up to Low CT20 3RS up to Low CT20 1PS up to Very low CT20 1PY up to Very low CT20 1PZ up to Very low CT20 1QA up to Very low CT20 1QB up to Very low CT20 1SU up to Very low

Rivers and flooding history near CT20

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

8 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006, most recently 6 July 2025. Warnings cover flood areas, not individual addresses.

No recorded flood extent is mapped near this district's centre. No recorded outline near the district means no flood was mapped here, which is not evidence none happened: the Environment Agency mapped only some floods, mapping effort rose sharply after about 2000, and surface-water flooding is largely absent from this record.

🏠 Buying or renting in CT20? 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

CT19 CT21 CT18 CT17 CT16 CT15 CT14 CT13

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.