Flood risk by area (outcode)
Area-level flood context from Environment Agency data — flood zones, recorded flood history and climate-change river-flow uplift — for high-demand England outcodes. Flood risk is mapped street by street, so use these for the area picture, then check the exact address with the flood-risk tool.
Central London on the tidal Thames floodplain, protected by the Thames Barrier.
South-bank riverside between London Bridge and Bermondsey, tidal Thames frontage.
Isle of Dogs sits within the tidal Thames loop, barrier-protected reclaimed land.
Former docklands beside the Thames and the Royal Docks.
Lower Thames at Twickenham, an area with a long fluvial flood history.
Confluence of the River Brent and the tidal Thames.
Staines flooded badly in the 2014 Thames floods.
Riverside town centre on the non-tidal Thames.
Low-lying Thames meadows around Hampton Court.
Thames valley villages with repeat fluvial flooding.
Thames frontage below Windsor, Datchet flooded in 2014.
Upper Thames market town with a documented flood history.
Calder valley town hit by the 2012, 2015 and 2020 floods.
Calderdale town in a steep, flash-flood-prone valley.
River Aire through central Leeds, flooded December 2015.
Lower Aire valley south of Leeds city centre.
Ouse–Foss confluence; York floods repeatedly, notably 2000 and 2015.
Swale/Cod Beck market town with a flood history.
Low-lying Humberhead Levels port town.
River Calder through Wakefield.
Below-sea-level city; the 2007 floods were among England's worst.
Low-lying eastern Hull beside the Humber.
Humber estuary port at tidal-flood risk.
Coastal Lincolnshire resort on the Humber mouth.
Nene valley city on the edge of the Fens.
Fenland town on the tidal River Nene, surge-flood exposed.
Great Ouse/Wash town hit by the 1953 and 1978 surges.
Isle of Ely amid the drained Fens.
River Wensum through the city centre.
Broads and coast at combined tidal and surface-water risk.
Suffolk coast at tidal and coastal-erosion risk.
Tidal Colne estuary villages.
Moorland heart of the 2013–14 Somerset Levels floods.
Tidal Parrett town on the Somerset Levels.
Low-lying Brue valley on the Levels.
Exe estuary town at tidal-flood risk.
North Devon coast and steep flash-flood catchments.
South Devon coast with tidal and rail-line flood exposure.
Tamar/Plym estuaries waterfront city.
Tidal head of three rivers; Truro centre floods on spring tides.
Severn city flooded severely in 2007.
Severn–Avon confluence; the iconic 2007 flood town.
Severn through the city; the cricket ground floods most winters.
Severn loop encircling the town centre.
River Wye through Hereford, record floods in 2020.
Severn-adjacent new town catchments.
Stour valley, West Midlands surface-water risk.
Eden/Petteril/Caldew city flooded in 2005 and 2015 (Storm Desmond).
Lune valley city; Storm Desmond flooding in 2015.
River Ribble through Preston.
Irwell valley; the 2015 Boxing Day floods hit Salford.
Steep Pennine valleys at flash-flood risk.
Ribble valley market town.
Weaver/Dane confluence Cheshire town.
Tyne quayside city centre.
River Skerne through the town.
Tidal Tees waterfront town.
Ouse valley town devastated by the 2000 floods.
Low-lying island city at tidal and surface-water risk.
Itchen/Test estuary waterfront.
Dour valley and coastal flood risk.
Tidal Medway town.
Upper Arun catchment, surface-water flood discussion.
Prime Chelsea, just back from the tidal Thames embankment.
Battersea riverside on the tidal Thames, barrier-protected.
Wandsworth on the Wandle near its Thames confluence.
Wimbledon, elevated ground with localised surface-water risk.
Peckham, inner south-east London with surface-water risk.
Forest Hill, elevated south-east London ground.
Islington, inner-north London with localised surface-water risk.
Finsbury Park near the New River and Hackney Brook culverts.
Camden by the Regent's Canal and the buried River Fleet.
Hampstead, high ground above the Fleet's headwaters.
West Hampstead and Kilburn, surface-water risk on the Kilburn brook line.
City-fringe east London near the tidal Thames.
Hackney near the Lee navigation and Hackney Brook.
Walthamstow beside the Lee valley reservoirs and marshes.
Paddington by the canal basin and the buried Westbourne.
Chiswick on the tidal Thames riverside.
Notting Hill, surface-water risk on the buried Counter's Creek line.
Clerkenwell over the buried River Fleet.
Croydon on the River Wandle headwaters.
Bromley on the River Ravensbourne.
North Kingston on the non-tidal Thames.
Harrow on the Wealdstone Brook catchment.
Enfield beside the Lee valley and the New River.
Ilford on the River Roding.
Romford on the River Rom/Beam.
Southall by the Grand Union Canal and the Yeading Brook.
Dartford on the tidal Darent near the Thames.
Guildford town centre on the River Wey, which floods periodically.
Central Reading at the Thames–Kennet confluence.
Bracknell on the Bull Brook and Cut catchments.
Slough on the Chalvey and Salt Hill brook catchments.
Maidenhead on the Thames, near the Jubilee River flood channel.
East Oxford between the Thames and Cherwell floodplains.
Central Milton Keynes near the Grand Union Canal and balancing lakes.
Maidstone on the tidal-influenced River Medway.
Canterbury on the River Stour through the city centre.
Central Brighton, chalk ground with coastal surface-water risk.
Hove seafront, coastal and surface-water risk.
Winchester on the River Itchen through the city.
Tunbridge Wells on the upper Medway tributaries.
Chichester on the Lavant, prone to winter flooding.
Southampton at the Test–Itchen estuary, tidal-flood exposed.
Central Bristol on the tidal Avon and Floating Harbour.
North Bristol slopes above the Avon, surface-water risk.
Clifton above the Avon Gorge.
Bath on the River Avon through the World Heritage city.
Southern Bath on the Avon valley floor.
Exeter on the River Exe, with flood-defence schemes.
Central Plymouth at the Tamar/Plym estuaries.
Torquay, English Riviera coast with steep flash-flood catchments.
Cheltenham on the River Chelt, flooded in 2007.
Swindon on the upper Ray catchment.
Dorchester on the River Frome.
Bournemouth, cliff-top coast with surface-water risk in the Bourne valley.
Central Birmingham on the canal network and the buried River Rea.
South-central Birmingham on the River Rea corridor.
Harborne, elevated south-west Birmingham with surface-water risk.
Selly Oak at the Bourn Brook and canal junction.
Central Coventry on the River Sherbourne, largely culverted.
Wolverhampton on the Smestow and canal catchments.
Walsall on the Ford Brook and canal network.
Stoke on the upper River Trent.
Hereford on the River Wye, with record floods in 2020.
Central Nottingham on the River Trent and the Leen.
Lenton on the River Leen near the Trent.
Central Leicester on the River Soar and canal.
Central Derby on the River Derwent, with a flood-defence scheme.
Lincoln on the Witham and Fossdyke, lower-city flood risk.
Northampton on the River Nene, flooded in 1998.
Headingley above the Aire valley with surface-water risk.
Central Sheffield on the Don and Sheaf, flooded in 2007.
West Sheffield on the Porter and Rivelin valley slopes.
Huddersfield at the Colne–Holme confluence.
Bradford on the Bradford Beck, largely culverted.
Harrogate on elevated ground with localised surface-water risk.
Doncaster on the River Don, flooded in 2007 and 2019.
Central Manchester on the Irwell/Medlock confluence.
Fallowfield on the River Mersey corridor.
Didsbury on the River Mersey floodplain.
Central Liverpool, Mersey waterfront with surface-water risk.
Mossley Hill, elevated south Liverpool ground.
Warrington on the tidal Mersey, flooded historically.
Stockport at the Goyt–Tame confluence forming the Mersey.
Bolton on the River Croal catchment.
Chester on the tidal River Dee.
Blackpool, low-lying Fylde coast with tidal and surface-water risk.
Jesmond on the Ouseburn valley.
Sunderland at the tidal River Wear mouth.
Durham in the River Wear's incised meander.
Middlesbrough on the tidal Tees, low-lying industrial flats.