Does OX11 flood?

Yes — parts of the OX11 district carry real flood risk: 35 of its 66 at-risk postcodes reach the Environment Agency's High likelihood band. The OX11 postcode district covers Didcot North East, Cholsey, Didcot South, close to Blewbury, Culham, Long Wittenham, and surrounding villages in parts of Oxfordshire and West Berkshire.

66 postcodes in the OX11 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 35 high, 1 medium, 30 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 OX11 postcodes are at risk?

OX11 0SF up to High OX11 0SN up to High OX11 7LH up to High OX11 7LR up to High OX11 7LS up to High OX11 7NP up to High OX11 7PG up to High OX11 7PS up to High OX11 7PT up to High OX11 7PU up to High OX11 7QH up to High OX11 7QY up to High OX11 7QZ up to High OX11 7RA up to High OX11 7RG up to High OX11 7RJ up to High OX11 7RU up to High OX11 7RW up to High OX11 7RY up to High OX11 7SU up to High OX11 7TP up to High OX11 7TU up to High OX11 7UT up to High OX11 9AL up to High OX11 9AN up to High OX11 9AW up to High OX11 9BA up to High OX11 9HT up to High OX11 9JG up to High OX11 9JQ up to High OX11 9LE up to High OX11 9LF up to High OX11 9LN up to High OX11 9LQ up to High OX11 9ND up to High OX11 0ND up to Medium OX11 0DT up to Low OX11 0DU up to Low OX11 0EJ up to Low OX11 0NE up to Low OX11 0NP up to Low OX11 7AW up to Low OX11 7PL up to Low OX11 7PQ up to Low OX11 7QD up to Low OX11 7RD up to Low OX11 7RE up to Low OX11 7RL up to Low OX11 7RN up to Low OX11 7RP up to Low OX11 7RQ up to Low OX11 7RR up to Low OX11 7RS up to Low OX11 7RT up to Low OX11 7RZ up to Low OX11 7SA up to Low OX11 7SB up to Low OX11 7SE up to Low OX11 7SG up to Low OX11 7TR up to Low OX11 7TX up to Low OX11 7UU up to Low OX11 9AA up to Low OX11 9JB up to Low OX11 9JJ up to Low OX11 9QJ up to Low

Rivers and flooding history near OX11

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

266 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (69 at warning level or above), most recently 28 April 2026. Warnings cover flood areas, not individual addresses.

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

🏠 Buying or renting in OX11? 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

OX10 OX12 OX13 OX9 OX14 OX15 OX7 OX16

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.