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Does DT9 flood?

Yes — parts of the DT9 district carry real flood risk: 36 of its 107 at-risk postcodes reach the Environment Agency's High likelihood band. The DT9 postcode district covers Yetminster, Blackmoor Vale, close to Sherborne, Yeovil, Chetnole, and surrounding villages in parts of Somerset and Dorset.

107 postcodes in the DT9 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 36 high, 15 medium, 48 low, 8 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 DT9 postcodes are at risk?

DT9 3RY up to High DT9 4AU up to High DT9 4BX up to High DT9 4BY up to High DT9 4DF up to High DT9 4EZ up to High DT9 4JX up to High DT9 4LA up to High DT9 4LF up to High DT9 4PW up to High DT9 4SE up to High DT9 4SR up to High DT9 4SZ up to High DT9 5AP up to High DT9 5AR up to High DT9 5DH up to High DT9 5EB up to High DT9 5ED up to High DT9 5FF up to High DT9 5GA up to High DT9 5GB up to High DT9 5JT up to High DT9 5NP up to High DT9 5PF up to High DT9 5PJ up to High DT9 5PU up to High DT9 5RA up to High DT9 5RF up to High DT9 6HA up to High DT9 6HQ up to High DT9 6HW up to High DT9 6ND up to High DT9 6NX up to High DT9 6NY up to High DT9 6PB up to High DT9 6PT up to High DT9 3AP up to Medium DT9 3LF up to Medium DT9 4BZ up to Medium DT9 4QY up to Medium DT9 5AE up to Medium DT9 5DN up to Medium DT9 5HL up to Medium DT9 5LD up to Medium DT9 5PN up to Medium DT9 5QL up to Medium DT9 5RB up to Medium DT9 6HF up to Medium DT9 6LG up to Medium DT9 6PE up to Medium DT9 6QP up to Medium DT9 3AR up to Low DT9 3BJ up to Low DT9 3BP up to Low DT9 3EH up to Low DT9 3EJ up to Low DT9 3EL up to Low DT9 3ET up to Low DT9 3GA up to Low DT9 3LB up to Low DT9 3LL up to Low DT9 3LN up to Low DT9 3LP up to Low DT9 3LQ up to Low DT9 3LR up to Low DT9 3LS up to Low DT9 3LT up to Low DT9 3LU up to Low DT9 3LX up to Low DT9 3LZ up to Low DT9 3NA up to Low DT9 3ND up to Low DT9 3NG up to Low DT9 3NJ up to Low DT9 3NL up to Low DT9 3NQ up to Low DT9 3NR up to Low DT9 3NS up to Low DT9 3PP up to Low DT9 3PS up to Low DT9 3QY up to Low DT9 3QZ up to Low DT9 3RA up to Low DT9 3RB up to Low DT9 3RD up to Low DT9 3RE up to Low DT9 3RQ up to Low DT9 3RX up to Low DT9 3TD up to Low DT9 5AF up to Low DT9 5DY up to Low DT9 5EA up to Low DT9 5JD up to Low DT9 5NR up to Low DT9 5PZ up to Low DT9 6NJ up to Low DT9 6PL up to Low DT9 6RE up to Low DT9 6RH up to Low DT9 6LF up to Very low DT9 6LH up to Very low DT9 6NF up to Very low DT9 6NG up to Very low DT9 6NH up to Very low DT9 6NQ up to Very low DT9 6NR up to Very low DT9 6SZ up to Very low

Rivers and flooding history near DT9

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

326 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (55 at warning level or above), most recently 13 March 2026. Warnings cover flood areas, not individual addresses.

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

🏠 Buying or renting in DT9? 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

DT10 DT8 DT11 DT7 DT6 DT5 DT4 DT3

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.