Does TA18 flood?

Yes — parts of the TA18 district carry real flood risk: 9 of its 30 at-risk postcodes reach the Environment Agency's High likelihood band. The TA18 postcode district covers Crewkerne, Coker, South Petherton & Islemoor, Marshwood Vale, close to Chiselborough, Winsham, Beaminster, and surrounding villages in parts of Somerset and Dorset.

30 postcodes in the TA18 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 9 high, 7 medium, 14 low. A postcode not listed here has no properties in any recorded risk band (which is good news, but never proof it cannot flood).

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Which TA18 postcodes are at risk?

Rivers and flooding history near TA18

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

Chiselborough on the River Parrett — 4.7 km away, highest on record 2.93m
Winsham on the River Axe — 8.1 km away, highest on record 3.95m
Beaminster on the River Brit — 9.6 km away, highest on record 1.15m
Gaw Bridge on the River Parrett — 9.9 km away, highest on record 3.84m

30 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (30 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):

Nov 2012 Floods (2012) — about 31.9 km from the centre
EA112_GouldsBrk_Lyewater_WestSt_Crewkerne_2008 (2008) — about 0.9 km from the centre
EA112_GouldsBrk_VictoriaSq_Crewkerne_2008 (2008) — about 0.7 km from the centre
EA112_GouldsBrook_OLdMillLane_Crewkerne_2008 (2008) — about 0.6 km from the centre

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

🏠 Buying or renting in TA18? 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

TA19 TA16 TA20 TA15 TA21 TA14 TA22 TA13

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.