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Does WN4 flood?

Yes — parts of the WN4 district carry real flood risk: 20 of its 37 at-risk postcodes reach the Environment Agency's High likelihood band. The WN4 postcode district covers Bryn with Ashton-in-Makerfield North, Haydock, close to Ashton-In-Makerfield, Hindley, Wigan, and surrounding villages in parts of Greater Manchester and Warrington.

37 postcodes in the WN4 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 20 high, 3 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).

Free preview first · full report £19

Which WN4 postcodes are at risk?

WN4 0NG up to High WN4 0PA up to High WN4 8AA up to High WN4 8PA up to High WN4 8QQ up to High WN4 9AA up to High WN4 9AB up to High WN4 9AF up to High WN4 9AG up to High WN4 9AN up to High WN4 9AR up to High WN4 9AS up to High WN4 9AT up to High WN4 9AU up to High WN4 9BJ up to High WN4 9DA up to High WN4 9DD up to High WN4 9DH up to High WN4 9HT up to High WN4 9JD up to High WN4 0NA up to Medium WN4 9HU up to Medium WN4 9HX up to Medium WN4 8AF up to Low WN4 8BD up to Low WN4 8BE up to Low WN4 8BG up to Low WN4 8LD up to Low WN4 8LG up to Low WN4 9AX up to Low WN4 9BG up to Low WN4 9HZ up to Low WN4 9JA up to Low WN4 9JB up to Low WN4 9JY up to Low WN4 9PY up to Low WN4 9SL up to Low

Rivers and flooding history near WN4

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

212 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (83 at warning level or above), most recently 20 August 2026. Warnings cover flood areas, not individual addresses.

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

🏠 Buying or renting in WN4? 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

WN3 WN5 WN2 WN6 WN1 WN7 WN8

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.