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Does Irlam flood?

Salford
55postcodes in the EA rivers-and-sea dataset
12river gauges within 10 km
6years with a mapped flood record within 5 km
🏠 Thinking of buying in Irlam? Get the detailed Property Flood-Risk Report for any Irlam postcode — official risk band, recorded floods since 1703, warning history, river behaviour and nearby storm overflows. £19 one-off, instant. Learn more →

What the Environment Agency's rivers-and-sea flood-risk data says about Irlam

Ordnance Survey places 55 postcodes in Irlam in the Environment Agency's rivers-and-sea flood-risk dataset (Risk of Flooding from Rivers and Sea). Each postcode is counted once, under the worst band any of its properties reaches; together they hold 874 properties in the EA dataset's likelihood bands.

EA likelihood bandPostcodes (worst band)Properties in the EA datasetof which homes
High156939
Medium9144107
Low31658518
Very low033
All bands55874667

This dataset covers flooding from rivers and the sea only — one of five flood sources. Surface water, groundwater, sewers and reservoirs are assessed separately, so a postcode missing from it is not proof that a place cannot flood. The band describes the land around properties (allowing for defences), not any single address and not today's conditions.

Rivers and live river levels near Irlam

Environment Agency gauges within 10 km of Irlam watch River Mersey, Sinderland Brook, Glaze Brook, River Bollin, Worsley Brook, Ellenor Brook, Baguley Brook, Manchester ship canal, Shakerley Brook, Atherton Lake Brook, Whittle Brook.

Distances are from the middle of Irlam's at-risk postcodes. Tidal and structure gauges are shown as readings only — the tide and sluice gates move them, not floods. A gauge with no recent reading shows no level.

The watercourse nearest Irlam

The nearest watercourse on the river map is the River Mersey (a canal), about 560 m from the middle of Irlam's at-risk postcodes.

A gauge downstream shows water that has already passed this point; one upstream sees it first. Distances along the river are from the point on the River Mersey nearest the middle of Irlam's at-risk postcodes. From Ordnance Survey’s river map (OS Open Rivers), which leaves out small streams, ditches and culverts, so a nearer one may exist. This describes where water goes on the map; it says nothing about flooding at any address. Contains OS data © Crown copyright and database rights 2026.

Flood warning areas near Irlam

25 Environment Agency flood warning areas lie within 10 km of Irlam. The EA has issued 232 flood warnings and alerts for them since 2006, most recently on 4 Sep 2026.

Recorded floods near Irlam

Floods whose mapped extent (EA Recorded Flood Outlines) reached within ~5 km of Irlam, most recent first. Records, not floods: no outline on the record is not evidence a place has not flooded. See them on the map →

Rainfall near Irlam

Irlam gets about 831 mm of rain a year on average (wettest month December, 87 mm; driest April, 52 mm). That is 29% drier than the UK as a whole, which averages 1,163 mm a year. Source: Met Office HadUK-Grid 1991–2020 (5 km grid), 1.3 km from the place centre.

The nearest rain gauge, Rainfall station (4.6 km away), recorded 6.6 mm in the last 24 hours and 60.7 mm in the last 7 days (latest reading 25 min ago).

At-risk postcodes in Irlam

Every postcode Ordnance Survey places in Irlam that appears in the EA's rivers-and-sea dataset, worst band first. Each links to its own flood-risk page.

High likelihood (15)

M44 5ALM44 5EEM44 5GHM44 5GRM44 5PNM44 5UHM44 6BAM44 6DBM44 6DPM44 6EHM44 6FEM44 6GGM44 6RBM44 6RQM44 6RT

Medium likelihood (9)

M44 6BDM44 6BFM44 6BSM44 6BTM44 6BUM44 6BXM44 6DGM44 6GJM44 6GP

Low likelihood (31)

M44 5AYM44 5BAM44 5BFM44 5BPM44 5DTM44 5EGM44 5EPM44 5ETM44 5EWM44 5GJM44 5GNM44 5GPM44 6BLM44 6BYM44 6DLM44 6DNM44 6DQM44 6DRM44 6DSM44 6DTM44 6DUM44 6RAM44 6RDM44 6RFM44 6RGM44 6RJM44 6RLM44 6RNM44 6RPM44 6RYM44 6ZQ

Postcode districts

M44 · 55

Sources

FloodRadar summarises public flood data. It is not a flood-risk survey of any property, and it does not replace official GOV.UK flood warnings or the GOV.UK long-term flood risk service.

Flood-risk bands: © 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.

Recorded Flood Outlines, flood warning areas and warning history © Environment Agency copyright and/or database right 2025. Licensed under the Open Government Licence v3.0.

River levels and rainfall: Environment Agency real-time flood-monitoring data, updated every 15 minutes (Open Government Licence v3.0).

Average rainfall: HadUK-Grid v1.3.2, Met Office. Contains public sector information licensed under the Open Government Licence v3.0.

Place names: Contains OS data © Crown copyright and database rights 2026. Contains Royal Mail data © Royal Mail copyright and database right 2026. Contains National Statistics data © Crown copyright and database right 2026. Licensed under the Open Government Licence v3.0.

All data sources & licences