Is Surrey at risk of flooding?

Surrey has 121 designated flood areas monitored by the Environment Agency, giving it a Very High risk rating. It ranks #11 out of 152 English counties for flood risk.

How many flood warning areas are in Surrey?

There are 121 flood warning and alert areas in Surrey, monitored by 0 Environment Agency stations across 44 rivers.

Do I need flood insurance in Surrey?

If your property is in or near one of Surrey's 121 flood areas, flood insurance is strongly recommended. The government's Flood Re scheme helps make flood insurance affordable for at-risk properties.

How can I check flood risk for my postcode?

Use the Environment Agency's flood risk checker or our postcode lookup tool to check the flood risk for your specific address. You can also browse Surrey's flood areas on this page.

What was the worst flood in Surrey?

Surrey has experienced significant flooding events over the years. Check the Environment Agency's historical flood data and our UK Flood History guide for details on major events.

Flood Risk in Surrey

Q: Which rivers flood in Surrey?

The main rivers in Surrey include Addlestone Bourne, Addlestone Bourne, Hale Bourne, Arun, Beverley Brook, Beverley Brook, Pyl Brook, East Pyl Brook and 39 others. These rivers have monitoring stations tracking water levels in real time.

South East

121

Flood Areas

Stations

Rivers

Risk Level

Very High

#11 of 152 counties

Flood Areas in Surrey

121 designated flood warning and alert areas

Name	River / Sea	Type
River Thames at Thames Ditton Island including Boyle Farm Island	River Thames	Warning
River Thames at Thames Ditton Island including Boyle Farm Island	River Thames	Alert
River Mole at Stoke D'Abernon, Cobham and South Hersham, Surrey	River Mole	Warning
River Mole and its tributaries from Kinnersley Manor to South Hersham, including Sidlow, Leigh, Betchworth, Brockham, Pixham, Dorking, Mickleham, L...	River Mole	Alert
River Wey flood area near Surrey	River Wey	Warning
Lower River Wey including Old Woking, Byfleet, and Weybridge and the West Clandon Stream at Send	River Wey, East Clandon Stream	Alert
River Thames at Hamm Court including Shepperton Lock, Hamhaugh Island, Hamm Court Estate and Dorney Grove	River Thames	Warning
River Thames from Shepperton to West and East Molesey including Hamm Court, Walton-on-Thames and Sunbury	River Thames	Alert
Communities at risk of groundwater flooding in the Godalming, Shackleford and Hambledon areas	Groundwater	Alert
River Wey at Elstead and Eashing, Surrey	River Wey	Warning
Salfords Stream at Salfords, Surrey	Salfords Stream	Warning
Redhill Brook including Redhill, Merstham and South Nutfield and Salfords Stream including Salfords	Redhill Brook, Salfords Stream	Alert
Ifield Brook, Upper River Mole, Burstow Stream and Salfords Stream including Ifield, Lowfield Heath, Charlwood, Hookwood, Bewbush, Furnace Green, M...	Ifield Brook, River Mole, Gatwick Stream, Burstow Stream	Alert
Hale Bourne from the M3 junction 3 to Clappers Lane including Windlesham Arboretum, Halebourne Lane and Burnt Pollard Lane, Surrey	Hale Bourne	Warning
Windle Brook and Hale, Mill and Addlestone Bournes including Bagshot, Windlesham, Lightwater, Chobham, West End, Emmetts Mill, Woodham and Addlestone	Windle Brook, Hale Bourne, Mill Bourne, Addlestone Bourne	Alert
Mill Bourne at Emmetts Mill, Surrey	Mill Bourne	Warning
River Thames at Staines and Egham including Bell Weir and Penton Hook Locks, Runnymede, Hythe End, Pooley Green, Thorpe Lea and east Egham	River Thames	Warning
River Thames from Datchet to Shepperton Green including Old Windsor, Wraysbury, Horton, Staines, Egham, Laleham and Chertsey	River Thames	Alert
Burstow Stream, Haroldslea Stream, Silverlea Ditch and Weatherhill Stream at East and North Horley, Surrey	Burstow Stream, Haroldslea Stream, Silverlea Ditch, Weatherhill Stream	Warning
The River Crane at Hillingdon, Southall, Cranford, Feltham and Twickenham	River Crane	Alert
River Thames flood area near Surrey	River Thames	Warning
River Mole at Brockham and Pixham, Surrey	River Mole	Warning
Beverley Brook at Barnes, London Boroughs of Richmond upon Thames and Wandsworth	Beverley Brook	Warning
Beverley Brook area, including the Pyl Brook, in the London Boroughs of Merton, Sutton, Kingston upon Thames, Richmond upon Thames and Wandsworth	Beverley Brook, Pyl Brook, East Pyl Brook	Alert
River Thames from the River Brent to the River Crane including East Isleworth and Syon Park	River Thames	Warning
River Thames including areas in the boroughs of Kensington & Chelsea, Hammersmith & Fulham, Ealing and Hounslow	River Thames	Alert
River Mole at Esher and East Molesey including Walton on Thames, West Molesey and Thames Ditton, Surrey	River Mole	Warning
River Mole at Esher and East Molesey including Walton on Thames, West Molesey and Thames Ditton	River Mole	Alert
River Thames including areas in the boroughs of Wandsworth and Richmond-upon-Thames	River Thames	Alert
River Thames from Raven's Ait to Teddington Weir including, Raven's Ait, the Hogsmill River below the university Knights Park Campus, both Kingston...	River Thames	Warning
River Thames from Hampton and Thames Ditton to Teddington including Hampton Wick and Kingston-upon-Thames	River Thames	Alert
River Hogsmill area from Ewell to Kingston upon Thames, including the Surbiton Stream in Surbiton and the Green Lane Stream between Ewell and Epsom	Hogsmill	Alert
River Thames at Thames Ditton including Ditton Field and Ditton Reach	River Thames	Warning
River Thames at Teddington including Broom Road and Lower Teddington Road	River Thames	Warning
River Thames flood area near Surrey	River Thames	Warning
River Thames flood area near Surrey	River Thames	Warning
River Thames at the Littleton Lane, Chertsey Road and Pool End areas of Shepperton Green as well as Dockett Eddy, Dockett Point and Pharaoh's Island	River Thames	Warning
River Thames at East and West Molesey including Hurst Park, Buckingham Avenue and the Royal Mews area	River Thames	Warning
The Rivers Arun, North River, Kird and Par Brook	Arun	Alert
River Thames at Old Windsor including Church Road, The Priory and around St. Lukes Road, Burfield Road and Straight Road	River Thames	Warning
River Lox in West Sussex from Chiddingfold to Drungewick, including the Loxwood Stream	Loxwood Stream	Alert
River Wey at Tilford, Surrey	River Wey	Warning
River Thames flood area near Surrey	River Thames	Warning
River Thames at Shepperton and Lower Halliford including St. Nicholas Drive, Thamesmead School and Bishop Duppas Park areas	River Thames	Warning
River Wey at Weybridge, Wey Meadows and Hamm Court, Surrey	River Wey	Warning
Addlestone Bourne flood area near Surrey	Addlestone Bourne	Warning
River Thames from Putney Bridge to Mortlake High Street East including Barnes	River Thames	Warning
Beverley Brook at Worcester Park, including Motspur Park, London Boroughs of Kingston upon Thames and Sutton	Beverley Brook	Warning
River Thames at Kingston-upon-Thames town including, central Kingston, the area around Canbury Gardens and Albany Park Road	River Thames	Warning
River Thames at Trowlock Island including the Royal Canoe Club	River Thames	Alert
River Mole at Dorking and Mickleham, Surrey	River Mole	Warning
Beverley Brook at West Barnes, London Boroughs of Kingston upon Thames and Merton	Beverley Brook	Warning
Properties closest to the River Wey between Walsham Meadow and Byfleet town, including the Walsham Lock and Ockham Mill, Common Meadows and Plough ...	River Wey	Warning
Communities at risk of groundwater flooding in the Haslemere, Churt and Rushmoor areas	Groundwater	Alert
Tillingbourne including Chilworth and Shalford	Tilling Bourbe, Law Brook	Alert
River Lox at Dunsfold, Upper Ifold, Ifold, Loxwood, Brewhurst and Drungewick. Including the Loxwood Stream	Loxwood Stream	Warning
Chertsey Bourne flood area near Surrey	Chertsey Bourne	Warning
Chertsey Bourne including Virginia Water, Thorpe Green and Chertsey and the Moat at Thorpe	Chertsey Bourne, The Moat, Moat	Alert
Beverley Brook at Raynes Park Including Beverley Way and Malden Golf Course, London Boroughs of Kingston upon Thames and Merton	Beverley Brook	Warning
Windle Brook at Bagshot including Swift Lane Caravan Park, Surrey	Windle Brook	Warning
Littlemead Brook at Cranleigh including Littlemead, Surrey	Littlemead Brook	Warning
Cranleigh Waters including Elmbridge, Shamley Green and Bramley and the Littlemead Brook including Cranleigh	Littlemead Brook, Cranleigh Waters, Hascombe Stream	Alert
River Thames flood area near Surrey	River Thames	Warning
River Thames from the Hogarth Lane Roundabout to the River Brent including South Chiswick, Grove Park, Strand-on-the-Green and Brentford	River Thames	Warning
Hoe Stream at Woking including Mayford, Surrey	Hoe Stream	Warning
Hoe Stream including Woking	Hoe Stream	Alert
River Thames flood area near Surrey	River Thames	Warning
River Thames at Walton-on-Thames including Desborough Island, Walton Bridge and Elmbridge Leisure Centre	River Thames	Warning
Cranleigh Waters at Bramley, Surrey	Cranleigh Waters	Warning
River Thames flood area near Surrey	River Thames	Warning
East Clandon Stream at Send, Surrey	East Clandon Stream	Warning
The area of Woking benefiting from the Hoe Stream Flood Alleviation Scheme	Hoe Stream	Warning
Gatwick Stream at South West Horley including Gatwick Airport, West Sussex and Surrey	Gatwick Stream	Warning
River Hogsmill at Ewell Court, Ruxley and Old Malden, London Borough of Kingston upon Thames and Epsom and Ewell	Hogsmill	Warning
Cranleigh Waters near Cranleigh and Shamley Green including Elmbridge Village, Surrey	Cranleigh Waters	Warning
Areas at risk of groundwater flooding in Egham	Groundwater	Alert
Tillingbourne at Chilworth and Shalford and the Law Brook at Chilworth, Surrey	Tillingbourne, Law Brook	Warning
River Thames flood area near Surrey	River Thames	Warning
The Colne Brook at Colnbrook including Horton and Wraysbury	Colne Brook	Warning
River Ash in the Borough of Spelthorne including Ashford and Staines	River Ash	Alert
River Thames at Old Windsor from Friday Island to upstream of Magna Carta Island including The Friary and The Moorings areas of Old Windsor	River Thames	Warning
The River Crane at Cranford and Feltham including North Feltham	River Crane	Warning
River Thames at Hampton and Hampton Wick including Hampton Court, properties on the Barge Walk, Hampton Court Palace Golf Club and Hampton Court Road	River Thames	Warning
River Mole at Charlwood and Hookwood including Povey Cross Road and Gatwick Airport, West Sussex and Surrey	River Mole	Warning
River Thames riverside from Putney Bridge to Teddington Weir	River Thames	Alert
Beverley Brook at Wimbledon Common and Richmond Park including Kingston Vale and Robin Hood Gate and Roehampton, London Boroughs of Kingston upon T...	Beverley Brook	Warning
River Wey at Godalming, Peasmarsh and Shalford, Surrey	River Wey	Warning
The Tidal River Crane at Twickenham	River Crane	Alert
River Ash at Ashford and Staines, including Birch Green, Knowle Green, Littleton and Shepperton	River Ash	Warning
River Hogsmill at Kingston, London Borough of Kingston upon Thames	Hogsmill	Warning
River Thames at Trowlock Island including the Royal Canoe Club	River Thames	Warning
River Thames flood area near Surrey	River Thames	Warning
River Wey at Old Woking and properties around Lower Westfield, Surrey	River Wey	Warning
River Mole at Sidlow, Leigh and Betchworth including Kinnersley Manor, Surrey	River Mole	Warning
The River Crane at Twickenham including Cole Park	River Crane	Warning
River Thames flood area near Surrey	River Thames	Warning
Addlestone Bourne at Woodham including Rose Park Caravan Park, Surrey	Addlestone Bourne	Warning
Areas at risk of groundwater flooding in the Caterham Bourne catchment including Caterham, Whyteleafe, Kenley, Purley, South Croydon, Beddington an...	Groundwater	Alert
River Wey at Guildford, Riverside Park Nature Reserve and Jacobs Well, Surrey	River Wey	Warning
River Thames in the Shepperton Green village area	River Thames	Warning
Redhill Brook at Redhill including Redhill Aerodrome, Surrey	Redhill Brook	Warning
Chertsey Bourne at Thorpe Green including Green Road and Trumps Green, Surrey	Chertsey Bourne	Warning
The Tidal River Crane at Isleworth	River Crane	Warning
River Mole at Leatherhead and Fetcham, Surrey	River Mole	Warning
River Thames flood area near Surrey	River Thames	Warning
Areas of Addlestone closest to the Addlestone Bourne, including parts of Bois Hall Road as well as Waters Edge and the Black Boy Bridge area of the...	Addlestone Bourne	Warning
Hale Bourne and Addlestone Bourne at Chobham and Mimbridge, Surrey	Addlestone Bourne, Hale Bourne	Warning
River Thames from Richmond Bridge to Teddington Weir including West Petersham and Ham Lands	River Thames	Warning
River Thames from the River Crane to Teddington Weir including St. Margaret's, Eel Pie Island, Strawberry Hill and East Teddington	River Thames	Warning
River Thames flood area near Surrey	River Thames	Warning
River Rythe from Oxshott to the Thames at Thames Ditton, including Arbrook Common, Claygate, Littleworth Common and Hinchley Wood	River Rythe	Warning
River Rythe from Oxshott to Thames Ditton, including Long Ditton, Hinchley Wood, Claygate and Esher	River Rythe	Alert
Surbiton Stream at Berrylands, Alexandra, Surbiton Hill, Tolworth and Hook Rise, London Borough of Kingston upon Thames	Surbiton	Warning
River Hogsmill at Ewell including Stoneleigh, Green Lane Stream at Epsom and Horton Stream at West Ewell	River Hogsmill	Warning
The Rive Ditch at Woodham and New Haw in West Byfleet	Rive Ditch	Warning
Properties at Mill Lane, Rapleys Field and Law Meadows	Hodge Brook	Warning
Boldings Brook and Chennells Brook through Horsham	Boldings Brook	Alert
Earlswood Brook at Whitebushes and South Earlswood	Earlswood Brook	Warning
Weatherhill Stream at Smallfield and Weatherhill	Weatherhill Stream	Warning
Pipp Brook at Wotton, Wescott and Dorking	Pipp Brook	Warning
Ray Brook at Blindley Heath and Lingfield	Eden Brook	Warning

Monitoring Stations

0 Environment Agency monitoring stations

Rivers in Surrey

Addlestone BourneAddlestone Bourne, Hale BourneArunBeverley BrookBeverley Brook, Pyl Brook, East Pyl BrookBoldings BrookBurstow Stream, Haroldslea Stream, Silverlea Ditch, Weatherhill StreamChertsey BourneChertsey Bourne, The Moat, MoatColne BrookCranleigh WatersEarlswood BrookEast Clandon StreamEden BrookGatwick StreamGroundwaterHale BourneHodge BrookHoe StreamHogsmillIfield Brook, River Mole, Gatwick Stream, Burstow StreamLittlemead BrookLittlemead Brook, Cranleigh Waters, Hascombe StreamLoxwood StreamMill BournePipp BrookRedhill BrookRedhill Brook, Salfords StreamRive DitchRiver AshRiver CraneRiver HogsmillRiver MoleRiver RytheRiver ThamesRiver WeyRiver Wey, East Clandon StreamSalfords StreamSurbitonTilling Bourbe, Law BrookTillingbourne, Law BrookWeatherhill StreamWindle BrookWindle Brook, Hale Bourne, Mill Bourne, Addlestone Bourne

Flood Insurance Warning for Surrey

Surrey has 121 designated flood areas and a very high flood risk rating. If you live in this area, check your buildings and contents insurance covers flood damage. Homes in high-risk areas may face higher premiums or require specialist cover.

Flood Insurance Guide →Planning & Flood Risk →