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Does BS40 flood?

Yes — parts of the BS40 district carry real flood risk: 53 of its 104 at-risk postcodes reach the Environment Agency's High likelihood band. The BS40 postcode district covers Chew Valley, Wrington, Winford, Blagdon & Churchill, close to Chew Stoke, Chew Magna, Congresbury, and surrounding villages in parts of City of Bristol and North Somerset.

104 postcodes in the BS40 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 53 high, 16 medium, 30 low, 5 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 BS40 postcodes are at risk?

BS40 5BL up to High BS40 5DN up to High BS40 5HJ up to High BS40 5HP up to High BS40 5HU up to High BS40 5HW up to High BS40 5LH up to High BS40 5LJ up to High BS40 5LL up to High BS40 5LS up to High BS40 5LX up to High BS40 5LY up to High BS40 5LZ up to High BS40 5PD up to High BS40 5QG up to High BS40 5QL up to High BS40 5QT up to High BS40 5QW up to High BS40 6BQ up to High BS40 6JA up to High BS40 6JP up to High BS40 6JQ up to High BS40 6NA up to High BS40 6NE up to High BS40 6PT up to High BS40 6PU up to High BS40 7AH up to High BS40 8AH up to High BS40 8EG up to High BS40 8EH up to High BS40 8ET up to High BS40 8EU up to High BS40 8EW up to High BS40 8HJ up to High BS40 8PN up to High BS40 8PS up to High BS40 8QL up to High BS40 8RJ up to High BS40 8RL up to High BS40 8RN up to High BS40 8RQ up to High BS40 8RR up to High BS40 8RS up to High BS40 8RY up to High BS40 8SE up to High BS40 8SP up to High BS40 8SS up to High BS40 8SU up to High BS40 8SX up to High BS40 8TL up to High BS40 8UU up to High BS40 8UX up to High BS40 8UY up to High BS40 5LN up to Medium BS40 5NU up to Medium BS40 5RR up to Medium BS40 6AN up to Medium BS40 6JL up to Medium BS40 7AF up to Medium BS40 7AG up to Medium BS40 7UR up to Medium BS40 7UX up to Medium BS40 8AG up to Medium BS40 8AS up to Medium BS40 8RE up to Medium BS40 8RT up to Medium BS40 8RZ up to Medium BS40 8UN up to Medium BS40 8XN up to Medium BS40 5DH up to Low BS40 5HT up to Low BS40 5PG up to Low BS40 6BJ up to Low BS40 6BZ up to Low BS40 6JJ up to Low BS40 6LA up to Low BS40 6NF up to Low BS40 8BG up to Low BS40 8BN up to Low BS40 8EE up to Low BS40 8EN up to Low BS40 8EQ up to Low BS40 8FG up to Low BS40 8HH up to Low BS40 8QD up to Low BS40 8QN up to Low BS40 8QZ up to Low BS40 8RP up to Low BS40 8RW up to Low BS40 8SD up to Low BS40 8SQ up to Low BS40 8SZ up to Low BS40 8TP up to Low BS40 8TT up to Low BS40 8TU up to Low BS40 8UZ up to Low BS40 8XE up to Low BS40 8XS up to Low BS40 8XT up to Low BS40 5JY up to Very low BS40 5QN up to Very low BS40 5QP up to Very low BS40 5QR up to Very low BS40 5QX up to Very low

Rivers and flooding history near BS40

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

214 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (45 at warning level or above), most recently 27 January 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 BS40? 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

BS39 BS41 BS37 BS36 BS35 BS34 BS32 BS48

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.