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Does Epsom flood?

Surrey
62postcodes in the EA rivers-and-sea dataset
12river gauges within 10 km
4years with a mapped flood record within 5 km
🏠 Thinking of buying in Epsom? Get the detailed Property Flood-Risk Report for any Epsom 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 Epsom

Ordnance Survey places 62 postcodes in Epsom 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 577 properties in the EA dataset's likelihood bands.

EA likelihood bandPostcodes (worst band)Properties in the EA datasetof which homes
High219663
Medium11110105
Low30369343
Very low022
All bands62577513

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 Epsom

Environment Agency gauges within 10 km of Epsom watch Hogsmill River, Beverley Brook, Pyl Brook, River Mole, River Thames, River Wandle.

Distances are from the middle of Epsom'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 Epsom

The nearest watercourse on the river map is Green Lane Stream, about 10 m from the middle of Epsom's at-risk postcodes. It flows into Hogsmill River about 2.0 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 Green Lane Stream nearest the middle of Epsom'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 Epsom

34 Environment Agency flood warning areas lie within 10 km of Epsom. The EA has issued 595 flood warnings and alerts for them since 2006, most recently on 30 Mar 2026.

Recorded floods near Epsom

Floods whose mapped extent (EA Recorded Flood Outlines) reached within ~5 km of Epsom, 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 Epsom

Epsom gets about 665 mm of rain a year on average (wettest month November, 74 mm; driest March, 41 mm). That is 43% drier than the UK as a whole, which averages 1,163 mm a year. Source: Met Office HadUK-Grid 1991–2020 (5 km grid), 2.2 km from the place centre.

The nearest rain gauge, Rainfall station (4.8 km away), recorded 1.7 mm in the last 24 hours and 59.3 mm in the last 7 days (latest reading 24 min ago).

At-risk postcodes in Epsom

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

High likelihood (21)

KT19 8EYKT19 8JUKT19 8REKT19 8RHKT19 8RJKT19 8RWKT19 8RYKT19 8SBKT19 8SDKT19 8SNKT19 8STKT19 8SYKT19 8TUKT19 8TXKT19 8UBKT19 9APKT19 9BAKT19 9BDKT19 9DSKT19 9QGKT19 9QQ

Medium likelihood (11)

KT19 8LPKT19 8RDKT19 8SFKT19 8SGKT19 8SLKT19 8SSKT19 8SWKT19 8UAKT19 9ASKT19 9AXKT19 9DR

Low likelihood (30)

KT18 7HPKT18 7HWKT18 7HYKT19 8HAKT19 8LNKT19 8NEKT19 8RAKT19 8RNKT19 8SAKT19 8SHKT19 8SJKT19 8SRKT19 8TAKT19 8TZKT19 9AUKT19 9BEKT19 9BSKT19 9BUKT19 9BXKT19 9BZKT19 9DAKT19 9DBKT19 9DDKT19 9DEKT19 9DJKT19 9DPKT19 9DTKT19 9JPKT19 9QNKT19 9RX

Postcode districts

KT18 · 3KT19 · 59

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