Does GU9 flood?

Yes — parts of the GU9 district carry real flood risk: 21 of its 90 at-risk postcodes reach the Environment Agency's High likelihood band. The GU9 postcode district sits close to Farnham, Ash, Tilford and surrounding villages in parts of Hampshire and Surrey.

90 postcodes in the GU9 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 21 high, 22 medium, 46 low, 1 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 GU9 postcodes are at risk?

GU9 7PR up to High GU9 7QL up to High GU9 7QN up to High GU9 7SX up to High GU9 7TH up to High GU9 8AP up to High GU9 8EP up to High GU9 9EZ up to High GU9 9FN up to High GU9 9HB up to High GU9 9HD up to High GU9 9HS up to High GU9 9HW up to High GU9 9LH up to High GU9 9LQ up to High GU9 9LR up to High GU9 9LS up to High GU9 9LT up to High GU9 9NB up to High GU9 9PY up to High GU9 9QD up to High GU9 7DR up to Medium GU9 7DU up to Medium GU9 7GG up to Medium GU9 7NX up to Medium GU9 7PA up to Medium GU9 7PB up to Medium GU9 7PH up to Medium GU9 7PN up to Medium GU9 7PP up to Medium GU9 7PS up to Medium GU9 7PT up to Medium GU9 7QU up to Medium GU9 7RA up to Medium GU9 7RD up to Medium GU9 7RH up to Medium GU9 7RL up to Medium GU9 7XN up to Medium GU9 8HS up to Medium GU9 9PR up to Medium GU9 9PS up to Medium GU9 9PZ up to Medium GU9 9QJ up to Medium GU9 7DY up to Low GU9 7GB up to Low GU9 7GW up to Low GU9 7GX up to Low GU9 7PD up to Low GU9 7PG up to Low GU9 7PW up to Low GU9 7PZ up to Low GU9 7QP up to Low GU9 7QR up to Low GU9 7QW up to Low GU9 7RB up to Low GU9 7RF up to Low GU9 7RJ up to Low GU9 7RN up to Low GU9 7RP up to Low GU9 7RT up to Low GU9 7RU up to Low GU9 7SF up to Low GU9 7SG up to Low GU9 7SL up to Low GU9 7UD up to Low GU9 7UE up to Low GU9 7UF up to Low GU9 7UG up to Low GU9 7UH up to Low GU9 7UP up to Low GU9 7UQ up to Low GU9 7WD up to Low GU9 7XG up to Low GU9 7XP up to Low GU9 7XQ up to Low GU9 7XR up to Low GU9 7XW up to Low GU9 8EN up to Low GU9 8ET up to Low GU9 8UE up to Low GU9 9FQ up to Low GU9 9JA up to Low GU9 9JB up to Low GU9 9LJ up to Low GU9 9LP up to Low GU9 9PT up to Low GU9 9QB up to Low GU9 9TE up to Low GU9 9TG up to Low GU9 8ES up to Very low

Rivers and flooding history near GU9

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

151 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (26 at warning level or above), most recently 6 February 2026. Warnings cover flood areas, not individual addresses.

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

🏠 Buying or renting in GU9? 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

GU10 GU8 GU11 GU7 GU12 GU6 GU5 GU14

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.