Does S25 flood?

Yes — parts of the S25 district carry real flood risk: 5 of its 9 at-risk postcodes reach the Environment Agency's High likelihood band. The S25 postcode district covers Dinnington, Anston & Woodsetts, close to Meadowgate Regulator, Killamarsh, Woodhouse Mill Regulator, and surrounding villages in parts of South Yorkshire and Derbyshire.

9 postcodes in the S25 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 5 high, 2 medium, 2 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 S25 postcodes are at risk?

S25 1YA up to High S25 2LY up to High S25 2RJ up to High S25 2XJ up to High S25 4AH up to High S25 2RH up to Medium S25 4DY up to Medium S25 4AJ up to Low S25 4HD up to Low

Rivers and flooding history near S25

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

Whiston Brook on the Whiston Brook — 7.6 km away, highest on record 2.30m
Rother Valley Lake on the Rother Washlands — 7.6 km away, highest on record 1.32m
Killamarsh on the River Rother — 8.2 km away, highest on record 4.36m
Woodhouse Mill Regulator on the River Rother — 8.3 km away, highest on record 5.82m

112 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (29 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 21.6 km from the centre
2021 January Flood Incident - Storm Christoph (2021) — about 54.5 km from the centre
2020 February Flood Incident - Storm Dennis (2020) — about 47 km from the centre
2020 February Flood Incident - Storm Ciara (2020) — about 45.6 km from the centre

🏠 Buying or renting in S25? 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

S26 S21 S20 S18 S32 S17 S33 S35

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.