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Does BL6 flood?

Yes — parts of the BL6 district carry real flood risk: 45 of its 120 at-risk postcodes reach the Environment Agency's High likelihood band. The BL6 postcode district covers Heaton, Lostock & Chew Moor, Adlington & Anderton, close to Horwich, Bolton, Hindley, and surrounding villages in parts of Greater Manchester and Lancashire.

120 postcodes in the BL6 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 45 high, 12 medium, 58 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 BL6 postcodes are at risk?

BL6 4AE up to High BL6 4DG up to High BL6 4DH up to High BL6 4DJ up to High BL6 4DL up to High BL6 4DN up to High BL6 4EY up to High BL6 4LZ up to High BL6 4PP up to High BL6 4RH up to High BL6 4SD up to High BL6 5GX up to High BL6 5JA up to High BL6 5PX up to High BL6 5QD up to High BL6 5QE up to High BL6 5QP up to High BL6 5QW up to High BL6 5RB up to High BL6 5RD up to High BL6 5RE up to High BL6 5RQ up to High BL6 5UG up to High BL6 6JA up to High BL6 6JW up to High BL6 7BT up to High BL6 7BX up to High BL6 7FL up to High BL6 7JB up to High BL6 7LF up to High BL6 7LQ up to High BL6 7NS up to High BL6 7NZ up to High BL6 7PA up to High BL6 7PB up to High BL6 7PD up to High BL6 7PH up to High BL6 7PJ up to High BL6 7PN up to High BL6 7PP up to High BL6 7PQ up to High BL6 7PW up to High BL6 7QF up to High BL6 7QG up to High BL6 7RH up to High BL6 4DA up to Medium BL6 4JW up to Medium BL6 4RA up to Medium BL6 5GS up to Medium BL6 5GW up to Medium BL6 5HY up to Medium BL6 5HZ up to Medium BL6 5JB up to Medium BL6 5RP up to Medium BL6 7JU up to Medium BL6 7NT up to Medium BL6 7QE up to Medium BL6 4AA up to Low BL6 4BA up to Low BL6 4BH up to Low BL6 4BJ up to Low BL6 4BR up to Low BL6 4DB up to Low BL6 4DE up to Low BL6 4DQ up to Low BL6 4ED up to Low BL6 4EL up to Low BL6 4JB up to Low BL6 4JN up to Low BL6 4LU up to Low BL6 4NL up to Low BL6 4PR up to Low BL6 4PU up to Low BL6 4RB up to Low BL6 4RD up to Low BL6 4RE up to Low BL6 4RG up to Low BL6 4RJ up to Low BL6 4SE up to Low BL6 5GU up to Low BL6 5HL up to Low BL6 5LH up to Low BL6 5NN up to Low BL6 5QB up to Low BL6 5QH up to Low BL6 5SJ up to Low BL6 5TQ up to Low BL6 5TT up to Low BL6 5XX up to Low BL6 6HG up to Low BL6 6JE up to Low BL6 6JL up to Low BL6 6PE up to Low BL6 6RQ up to Low BL6 6SF up to Low BL6 6SY up to Low BL6 7AA up to Low BL6 7AB up to Low BL6 7AD up to Low BL6 7AE up to Low BL6 7AH up to Low BL6 7AY up to Low BL6 7BD up to Low BL6 7BL up to Low BL6 7BP up to Low BL6 7BR up to Low BL6 7BY up to Low BL6 7BZ up to Low BL6 7HU up to Low BL6 7HX up to Low BL6 7NP up to Low BL6 7NR up to Low BL6 7NX up to Low BL6 7NY up to Low BL6 7TG up to Low BL6 4AF up to Very low BL6 4AG up to Very low BL6 4BF up to Very low BL6 4DF up to Very low BL6 6LB up to Very low

Rivers and flooding history near BL6

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

35 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (35 at warning level or above), most recently 20 September 2025. Warnings cover flood areas, not individual addresses.

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

🏠 Buying or renting in BL6? 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

BL5 BL7 BL4 BL8 BL3 BL9 BL2 BL1

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.