Does S65 flood?

Yes — parts of the S65 district carry real flood risk: 14 of its 37 at-risk postcodes reach the Environment Agency's High likelihood band. The S65 postcode district covers Boston Castle, Dalton & Thrybergh, Bramley & Ravenfield, close to Rotherham, Canklow Washlands, Canklow Regulator, and surrounding villages in South Yorkshire.

37 postcodes in the S65 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 14 high, 4 medium, 14 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 S65 postcodes are at risk?

S65 1BL up to High S65 1QY up to High S65 1RD up to High S65 1RE up to High S65 1RF up to High S65 1ST up to High S65 1SU up to High S65 3ES up to High S65 3EW up to High S65 3SH up to High S65 3SP up to High S65 3SR up to High S65 4NU up to High S65 4PE up to High S65 1BJ up to Medium S65 1RJ up to Medium S65 3ET up to Medium S65 3SW up to Medium S65 1AB up to Low S65 1AD up to Low S65 1AH up to Low S65 1AL up to Low S65 1AP up to Low S65 1AT up to Low S65 1RG up to Low S65 1RN up to Low S65 1RW up to Low S65 1SB up to Low S65 1SD up to Low S65 1SJ up to Low S65 3EQ up to Low S65 4TE up to Low S65 1RL up to Very low S65 1RP up to Very low S65 1RR up to Very low S65 1SE up to Very low S65 1SX up to Very low

Rivers and flooding history near S65

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

Rotherham Forge Island on the River Don — 2 km away, highest on record 3.32m
Rotherham on the River Don — 2.5 km away, highest on record 4.29m
Whiston Brook on the Whiston Brook — 4 km away, highest on record 2.30m
Canklow Washlands on the Ulley Brook — 4.4 km away, highest on record 5.74m

272 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (95 at warning level or above), most recently 30 August 2026. Warnings cover flood areas, not individual addresses.

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

2022 February Flood Incident -Storm Dudley, Eunice and Franklin (2022) — about 17.9 km from the centre
2021 January Flood Incident - Storm Christoph (2021) — about 47.5 km from the centre

🏠 Buying or renting in S65? 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

S64 S66 S63 S62 S61 S60 S70 S71

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.