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Does Aldershot flood?

Hampshire
54postcodes in the EA rivers-and-sea dataset
10river gauges within 10 km
3years with a mapped flood record within 5 km
🏠 Thinking of buying in Aldershot? Get the detailed Property Flood-Risk Report for any Aldershot postcode — official risk band, recorded floods since 1703, warning history, river behaviour and nearby storm overflows. £19 one-off, instant. Learn more →

What the Environment Agency's rivers-and-sea flood-risk data says about Aldershot

Ordnance Survey places 54 postcodes in Aldershot in the Environment Agency's rivers-and-sea flood-risk dataset (Risk of Flooding from Rivers and Sea). Each postcode is counted once, under the worst band any of its properties reaches; together they hold 427 properties in the EA dataset's likelihood bands.

EA likelihood bandPostcodes (worst band)Properties in the EA datasetof which homes
High208577
Medium2142
Low32328209
Very low000
All bands54427288

This dataset covers flooding from rivers and the sea only — one of five flood sources. Surface water, groundwater, sewers and reservoirs are assessed separately, so a postcode missing from it is not proof that a place cannot flood. The band describes the land around properties (allowing for defences), not any single address and not today's conditions.

Rivers and live river levels near Aldershot

Environment Agency gauges within 10 km of Aldershot watch River Blackwater, River Wey, Cove Brook, Fleet Brook, River Hart.

Distances are from the middle of Aldershot's at-risk postcodes. Tidal and structure gauges are shown as readings only — the tide and sluice gates move them, not floods. A gauge with no recent reading shows no level.

The watercourse nearest Aldershot

The nearest watercourse on the river map is Blackwater River, about 450 m from the middle of Aldershot's at-risk postcodes. It flows into the River Loddon about 30 km downstream.

A gauge downstream shows water that has already passed this point; one upstream sees it first. Distances along the river are from the point on Blackwater River nearest the middle of Aldershot's at-risk postcodes. From Ordnance Survey’s river map (OS Open Rivers), which leaves out small streams, ditches and culverts, so a nearer one may exist. This describes where water goes on the map; it says nothing about flooding at any address. Contains OS data © Crown copyright and database rights 2026.

Flood warning areas near Aldershot

12 Environment Agency flood warning areas lie within 10 km of Aldershot. The EA has issued 146 flood warnings and alerts for them since 2006, most recently on 27 Jan 2026.

Recorded floods near Aldershot

Floods whose mapped extent (EA Recorded Flood Outlines) reached within ~5 km of Aldershot, most recent first. Records, not floods: no outline on the record is not evidence a place has not flooded. See them on the map →

Rainfall near Aldershot

Aldershot gets about 754 mm of rain a year on average (wettest month November, 88 mm; driest May, 47 mm). That is 35% drier than the UK as a whole, which averages 1,163 mm a year. Source: Met Office HadUK-Grid 1991–2020 (5 km grid), 2.4 km from the place centre.

The nearest rain gauge, Rainfall station (2.8 km away), recorded 0.0 mm in the last 24 hours and 67.8 mm in the last 7 days (latest reading 35 min ago).

At-risk postcodes in Aldershot

Every postcode Ordnance Survey places in Aldershot that appears in the EA's rivers-and-sea dataset, worst band first. Each links to its own flood-risk page.

High likelihood (20)

GU11 3LRGU11 3LTGU11 3NEGU11 3NFGU11 3QNGU11 3RDGU11 3RJGU11 3RPGU11 3RRGU11 3RUGU11 3RWGU11 3RYGU12 4ARGU12 4JNGU12 4TDGU12 4TFGU12 4XBGU12 4YAGU12 4YDGU9 9HS

Medium likelihood (2)

GU12 4NQGU12 4UT

Low likelihood (32)

GU11 3RNGU12 4ATGU12 4AUGU12 4AXGU12 4AYGU12 4BAGU12 4BGGU12 4DDGU12 4DNGU12 4DQGU12 4EUGU12 4EXGU12 4HAGU12 4HDGU12 4QBGU12 4QFGU12 4QJGU12 4QNGU12 4QPGU12 4QRGU12 4QWGU12 4RGGU12 4RHGU12 4TUGU12 4TXGU12 4UAGU12 4UBGU12 4UGGU12 4UJGU12 4URGU12 4WDGU12 6LB

Postcode districts

GU9 · 1GU11 · 13GU12 · 40

Sources

FloodRadar summarises public flood data. It is not a flood-risk survey of any property, and it does not replace official GOV.UK flood warnings or the GOV.UK long-term flood risk service.

Flood-risk bands: © 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.

Recorded Flood Outlines, flood warning areas and warning history © Environment Agency copyright and/or database right 2025. Licensed under the Open Government Licence v3.0.

River levels and rainfall: Environment Agency real-time flood-monitoring data, updated every 15 minutes (Open Government Licence v3.0).

Average rainfall: HadUK-Grid v1.3.2, Met Office. Contains public sector information licensed under the Open Government Licence v3.0.

Place names: Contains OS data © Crown copyright and database rights 2026. Contains Royal Mail data © Royal Mail copyright and database right 2026. Contains National Statistics data © Crown copyright and database right 2026. Licensed under the Open Government Licence v3.0.

All data sources & licences