Does M24 flood?

Yes — parts of the M24 district carry real flood risk: 7 of its 34 at-risk postcodes reach the Environment Agency's High likelihood band. The M24 postcode district covers South Middleton, North Middleton, East Middleton, Chadderton South, close to Manchester, Bury, Rochdale, and surrounding villages in Greater Manchester.

34 postcodes in the M24 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 7 high, 27 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 M24 postcodes are at risk?

M24 1AZ up to High M24 1BN up to High M24 1QZ up to High M24 2WH up to High M24 4NE up to High M24 4PN up to High M24 4TE up to High M24 1AB up to Low M24 1AG up to Low M24 1AQ up to Low M24 1AT up to Low M24 1AY up to Low M24 1HF up to Low M24 1QR up to Low M24 1SQ up to Low M24 1UQ up to Low M24 2HD up to Low M24 2HP up to Low M24 2HZ up to Low M24 2JD up to Low M24 2LR up to Low M24 2RG up to Low M24 2SX up to Low M24 2UF up to Low M24 2YP up to Low M24 4DP up to Low M24 4FA up to Low M24 4FE up to Low M24 4RB up to Low M24 4RW up to Low M24 4RY up to Low M24 4TJ up to Low M24 6AG up to Low M24 6BR up to Low

Rivers and flooding history near M24

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

Blackford Bridge on the River Roch — 6.6 km away, highest on record 3.36m
Rochdale on the River Roch — 7.1 km away, highest on record 2.22m
Manchester Racecourse on the River Irwell — 7.2 km away, highest on record 5.67m
Littleton Road River on the River Irwell — 7.4 km away, highest on record 4.98m

241 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (78 at warning level or above), most recently 15 December 2025. Warnings cover flood areas, not individual addresses.

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

Middleton (The Old Grammar School) (2015) — about 0.8 km from the centre
Higher Blackley (2015) — about 3.7 km from the centre
Middleton (Boarshaw Trading Estate) (2015) — about 1.1 km from the centre
EA01327_21 January 2008_Whittle Brook_Top of Heber (2008) — about 1.7 km from the centre

Records, not floods: no outline on the record is not evidence a place has not flooded.

🏠 Buying or renting in M24? 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

M23 M25 M22 M26 M21 M27 M20 M28

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.