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Does YO11 flood?

Yes — parts of the YO11 district carry real flood risk: 16 of its 39 at-risk postcodes reach the Environment Agency's High likelihood band. The YO11 postcode district covers Cayton, Castle, Eastfield, Seamer, close to East Ayton, Forge Valley, Scalby Mills, and surrounding villages in North Yorkshire.

39 postcodes in the YO11 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 16 high, 9 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 YO11 postcodes are at risk?

YO11 1NU up to High YO11 1PB up to High YO11 1PD up to High YO11 1PG up to High YO11 1PH up to High YO11 2HD up to High YO11 2QE up to High YO11 3BS up to High YO11 3LU up to High YO11 3NN up to High YO11 3NQ up to High YO11 3PF up to High YO11 3PG up to High YO11 3UT up to High YO11 3WF up to High YO11 3YZ up to High YO11 1PE up to Medium YO11 3DT up to Medium YO11 3NJ up to Medium YO11 3RS up to Medium YO11 3RT up to Medium YO11 3SB up to Medium YO11 3SU up to Medium YO11 3SY up to Medium YO11 3SZ up to Medium YO11 1PL up to Low YO11 2JE up to Low YO11 2LX up to Low YO11 3ND up to Low YO11 3NW up to Low YO11 3SD up to Low YO11 3SF up to Low YO11 3SJ up to Low YO11 3SN up to Low YO11 3SX up to Low YO11 3TL up to Low YO11 3TU up to Low YO11 3YS up to Low YO11 3YY up to Low

Rivers and flooding history near YO11

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

375 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (135 at warning level or above), most recently 18 February 2026. Warnings cover flood areas, not individual addresses.

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

🏠 Buying or renting in YO11? 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

YO10 YO12 YO13 YO14 YO8 YO15 YO7 YO16

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.