UK Flood Risk by Postcode
Across England, 673,373 of 31,154,906 properties (2.2%) are in areas at high or medium risk of flooding from rivers and the sea, per Environment Agency data updated 6 July 2026. Postcode district PE11 has the most (17,925) and East Lindsey the most of any local authority (23,529).
| Risk band | Chance of flooding each year | All properties | Homes |
|---|---|---|---|
| High | 3.3% (1 in 30) or greater chance in any year | 332,264 | 218,143 |
| Medium | between 1% and 3.3% (1 in 100 to 1 in 30) chance in any year | 341,109 | 249,477 |
| Low | between 0.1% and 1% (1 in 1,000 to 1 in 100) chance in any year | 981,972 | 764,767 |
| Very low | less than 0.1% (1 in 1,000) chance in any year | 799,957 | 665,742 |
Postcode districtsMost properties at high or medium risk
| District | Mainly in | High + medium | High | Share |
|---|---|---|---|---|
| PE11 | South Holland | 17,925 | 119 | 65.4% |
| DN14 | East Riding of Yorkshire | 16,175 | 7,906 | 53.0% |
| PE25 | East Lindsey | 9,096 | 450 | 31.0% |
| PE13 | Fenland | 8,176 | 5 | 37.2% |
| PE14 | King's Lynn and West Norfolk | 6,418 | 30 | 43.1% |
| DN7 | Doncaster | 5,927 | 3,821 | 46.4% |
| SE13 | Lewisham | 5,617 | 4,292 | 20.8% |
| YO8 | North Yorkshire | 4,629 | 3,420 | 16.2% |
| DN35 | North East Lincolnshire | 4,568 | 2,505 | 26.0% |
| TW18 | Spelthorne | 4,253 | 2,041 | 29.5% |
| DN32 | North East Lincolnshire | 3,778 | 10 | 23.5% |
| DN5 | Doncaster | 3,767 | 439 | 17.8% |
| PE24 | East Lindsey | 3,620 | 1,752 | 24.6% |
| SW18 | Wandsworth | 3,620 | 1,205 | 11.1% |
| LN12 | East Lindsey | 3,585 | 1,453 | 27.0% |
| KT16 | Runnymede | 3,457 | 1,558 | 26.1% |
| LN6 | Lincoln | 3,361 | 370 | 8.9% |
| LN4 | North Kesteven | 3,307 | 2,302 | 12.6% |
| PE15 | Fenland | 3,298 | 13 | 18.2% |
| HU6 | Kingston upon Hull | 3,154 | 1,748 | 17.1% |
| PO20 | Chichester | 3,095 | 1,781 | 11.6% |
| LN11 | East Lindsey | 3,070 | 1,980 | 13.4% |
| NG2 | Rushcliffe | 2,744 | 77 | 8.4% |
| PE6 | Peterborough | 2,718 | 136 | 12.0% |
| SL6 | Windsor and Maidenhead | 2,691 | 811 | 6.3% |
| KT1 | Kingston upon Thames | 2,685 | 1,221 | 18.9% |
| TN12 | Tunbridge Wells | 2,671 | 2,173 | 13.1% |
| PE34 | King's Lynn and West Norfolk | 2,620 | 21 | 29.1% |
| BA2 | Bath and North East Somerset | 2,594 | 442 | 6.3% |
| OL14 | Calderdale | 2,562 | 1,234 | 25.9% |
| PE22 | East Lindsey | 2,556 | 740 | 20.1% |
| EX8 | East Devon | 2,544 | 2,186 | 11.1% |
| TW20 | Runnymede | 2,517 | 1,368 | 18.1% |
| PR1 | Preston | 2,510 | 30 | 6.4% |
| GL1 | Gloucester | 2,491 | 258 | 11.2% |
| PE26 | Huntingdonshire | 2,488 | 3 | 31.0% |
| LN5 | Lincoln | 2,333 | 45 | 10.6% |
| DN8 | Doncaster | 2,226 | 300 | 21.9% |
| PE12 | South Holland | 2,165 | 153 | 7.9% |
| NG7 | Nottingham | 2,161 | 560 | 7.5% |
| FY6 | Wyre | 2,107 | 1,192 | 10.9% |
| YO1 | York | 2,062 | 526 | 29.0% |
| DN36 | North East Lincolnshire | 2,062 | 1,556 | 14.7% |
| FY5 | Wyre | 2,038 | 1,270 | 8.1% |
| TW17 | Spelthorne | 2,022 | 851 | 26.5% |
| OX1 | Oxford | 1,971 | 1,667 | 14.8% |
| RG4 | Reading | 1,970 | 501 | 10.4% |
| E9 | Hackney | 1,962 | 1,927 | 10.2% |
| HU15 | East Riding of Yorkshire | 1,961 | 1,621 | 13.6% |
| SL3 | Slough | 1,925 | 1,136 | 9.1% |
Postcode districtsHighest share of properties at high or medium risk
Districts with at least 500 properties.
| District | Mainly in | High + medium | High | Share |
|---|---|---|---|---|
| PE11 | South Holland | 17,925 | 119 | 65.4% |
| DN14 | East Riding of Yorkshire | 16,175 | 7,906 | 53.0% |
| DN7 | Doncaster | 5,927 | 3,821 | 46.4% |
| PE14 | King's Lynn and West Norfolk | 6,418 | 30 | 43.1% |
| PE13 | Fenland | 8,176 | 5 | 37.2% |
| PE25 | East Lindsey | 9,096 | 450 | 31.0% |
| PE26 | Huntingdonshire | 2,488 | 3 | 31.0% |
| TW18 | Spelthorne | 4,253 | 2,041 | 29.5% |
| PE34 | King's Lynn and West Norfolk | 2,620 | 21 | 29.1% |
| YO1 | York | 2,062 | 526 | 29.0% |
| LN12 | East Lindsey | 3,585 | 1,453 | 27.0% |
| TW17 | Spelthorne | 2,022 | 851 | 26.5% |
| KT16 | Runnymede | 3,457 | 1,558 | 26.1% |
| DN35 | North East Lincolnshire | 4,568 | 2,505 | 26.0% |
| OL14 | Calderdale | 2,562 | 1,234 | 25.9% |
| HU1 | Kingston upon Hull | 1,348 | 481 | 25.7% |
| DN19 | North Lincolnshire | 980 | 188 | 25.1% |
| PE24 | East Lindsey | 3,620 | 1,752 | 24.6% |
| DN32 | North East Lincolnshire | 3,778 | 10 | 23.5% |
| DN8 | Doncaster | 2,226 | 300 | 21.9% |
| LA21 | Westmorland and Furness | 268 | 116 | 21.5% |
| DN18 | North Lincolnshire | 1,559 | 880 | 21.5% |
| SE13 | Lewisham | 5,617 | 4,292 | 20.8% |
| PE22 | East Lindsey | 2,556 | 740 | 20.1% |
| ME18 | Maidstone | 957 | 479 | 20.0% |
Towns and local authoritiesMost properties at high or medium risk
| Local authority | High + medium | High | Share | Dates with a mapped flood |
|---|---|---|---|---|
| East Lindsey | 23,529 | 7,742 | 18.3% | 16 |
| East Riding of Yorkshire | 23,320 | 12,784 | 9.7% | 31 |
| South Holland | 20,843 | 282 | 35.3% | 2 |
| North Yorkshire | 19,044 | 11,748 | 4.2% | 46 |
| Fenland | 14,844 | 289 | 24.7% | 1 |
| Doncaster | 13,946 | 5,028 | 8.2% | 16 |
| North East Lincolnshire | 11,451 | 4,403 | 12.8% | 3 |
| Somerset | 11,384 | 6,137 | 3.0% | 129 |
| Cornwall | 10,863 | 7,284 | 2.6% | 324 |
| King's Lynn and West Norfolk | 10,736 | 958 | 10.4% | 4 |
| Kingston upon Hull | 9,111 | 5,135 | 6.2% | 6 |
| Runnymede | 8,820 | 4,516 | 18.5% | 12 |
| Cumberland | 7,779 | 4,822 | 4.0% | 72 |
| Windsor and Maidenhead | 7,749 | 3,616 | 9.8% | 7 |
| Nottingham | 7,745 | 1,704 | 4.6% | 7 |
| Westmorland and Furness | 7,445 | 4,734 | 4.1% | 54 |
| Lewisham | 7,335 | 4,770 | 4.9% | 2 |
| Huntingdonshire | 7,031 | 2,084 | 6.4% | 14 |
| Leeds | 6,320 | 2,886 | 1.4% | 16 |
| East Devon | 5,934 | 4,440 | 5.7% | 49 |
| Lincoln | 5,825 | 186 | 9.7% | 13 |
| Calderdale | 5,804 | 3,182 | 4.8% | 9 |
| Birmingham | 5,743 | 2,746 | 1.1% | 2 |
| Manchester | 5,679 | 1,456 | 1.9% | 27 |
| York | 5,138 | 1,786 | 4.6% | 15 |
| Teignbridge | 4,734 | 2,857 | 5.4% | 29 |
| Canterbury | 4,625 | 3,568 | 5.0% | 6 |
| Dorset | 4,603 | 2,857 | 1.8% | 116 |
| Spelthorne | 4,591 | 1,845 | 9.2% | 29 |
| Kirklees | 4,558 | 2,972 | 2.0% | 9 |
| Wiltshire | 4,555 | 2,095 | 1.5% | 179 |
| North Lincolnshire | 4,343 | 2,120 | 4.5% | 10 |
| Bath and North East Somerset | 4,311 | 1,045 | 4.1% | 43 |
| Wyre | 4,308 | 2,665 | 6.0% | 22 |
| Kingston upon Thames | 4,274 | 1,314 | 5.1% | 8 |
| East Suffolk | 4,260 | 2,735 | 2.6% | 1 |
| Sheffield | 4,153 | 2,736 | 1.3% | 7 |
| Bradford | 4,138 | 2,412 | 1.5% | 15 |
| Croydon | 4,129 | 3,118 | 2.2% | 0 |
| Leicester | 3,863 | 1,344 | 2.4% | 3 |
| Oxford | 3,854 | 3,058 | 4.6% | 10 |
| Portsmouth | 3,839 | 2,844 | 3.5% | 2 |
| Chichester | 3,815 | 2,249 | 4.6% | 16 |
| North Devon | 3,706 | 2,114 | 4.7% | 18 |
| Herefordshire | 3,673 | 1,925 | 2.7% | 6 |
| Lancaster | 3,672 | 1,946 | 4.1% | 27 |
| Wandsworth | 3,654 | 1,117 | 2.2% | 0 |
| Derby | 3,621 | 458 | 2.8% | 13 |
| Newark and Sherwood | 3,609 | 2,200 | 4.8% | 15 |
| West Lindsey | 3,564 | 1,135 | 5.6% | 17 |
Towns and local authoritiesHighest share at high or medium risk
| Local authority | High + medium | High | Share | Dates with a mapped flood |
|---|---|---|---|---|
| South Holland | 20,843 | 282 | 35.3% | 2 |
| Fenland | 14,844 | 289 | 24.7% | 1 |
| Runnymede | 8,820 | 4,516 | 18.5% | 12 |
| East Lindsey | 23,529 | 7,742 | 18.3% | 16 |
| North East Lincolnshire | 11,451 | 4,403 | 12.8% | 3 |
| Isles of Scilly | 303 | 278 | 10.6% | 7 |
| King's Lynn and West Norfolk | 10,736 | 958 | 10.4% | 4 |
| Windsor and Maidenhead | 7,749 | 3,616 | 9.8% | 7 |
| East Riding of Yorkshire | 23,320 | 12,784 | 9.7% | 31 |
| Lincoln | 5,825 | 186 | 9.7% | 13 |
| Spelthorne | 4,591 | 1,845 | 9.2% | 29 |
| Doncaster | 13,946 | 5,028 | 8.2% | 16 |
| Boston | 3,122 | 653 | 7.6% | 2 |
| Huntingdonshire | 7,031 | 2,084 | 6.4% | 14 |
| Kingston upon Hull | 9,111 | 5,135 | 6.2% | 6 |
| Maldon | 2,528 | 1,914 | 6.0% | 2 |
| Wyre | 4,308 | 2,665 | 6.0% | 22 |
| East Devon | 5,934 | 4,440 | 5.7% | 49 |
| West Lindsey | 3,564 | 1,135 | 5.6% | 17 |
| Teignbridge | 4,734 | 2,857 | 5.4% | 29 |
| Kingston upon Thames | 4,274 | 1,314 | 5.1% | 8 |
| East Cambridgeshire | 2,694 | 235 | 5.0% | 2 |
| South Hams | 3,527 | 2,470 | 5.0% | 31 |
| Canterbury | 4,625 | 3,568 | 5.0% | 6 |
| Elmbridge | 3,313 | 1,493 | 4.9% | 17 |
A–ZAll 296 local authorities in England
Adur Amber Valley Arun Ashfield Ashford Babergh Barking and Dagenham Barnet Barnsley Basildon Basingstoke and Deane Bassetlaw Bath and North East Somerset Bedford Bexley Birmingham Blaby Blackburn with Darwen Blackpool Bolsover Bolton Boston Bournemouth, Christchurch and Poole Bracknell Forest Bradford Braintree Breckland Brent Brentwood Brighton and Hove Bristol Broadland Bromley Bromsgrove Broxbourne Broxtowe Buckinghamshire Burnley Bury Calderdale Cambridge Camden Cannock Chase Canterbury Castle Point Central Bedfordshire Charnwood Chelmsford Cheltenham Cherwell Cheshire East Cheshire West and Chester Chesterfield Chichester Chorley City of London Colchester Cornwall Cotswold County Durham Coventry Crawley Croydon Cumberland Dacorum Darlington Dartford Derby Derbyshire Dales Doncaster Dorset Dover Dudley Ealing East Cambridgeshire East Devon East Hampshire East Hertfordshire East Lindsey East Riding of Yorkshire East Staffordshire East Suffolk Eastbourne Eastleigh Elmbridge Enfield Epping Forest Epsom and Ewell Erewash Exeter Fareham Fenland Folkestone and Hythe Forest of Dean Fylde Gateshead Gedling Gloucester Gosport Gravesham Great Yarmouth Greenwich Guildford Hackney Halton Hammersmith and Fulham Harborough Haringey Harlow Harrow Hart Hartlepool Hastings Havant Havering Herefordshire Hertsmere High Peak Hillingdon Hinckley and Bosworth Horsham Hounslow Huntingdonshire Hyndburn Ipswich Isle of Wight Isles of Scilly Islington Kensington and Chelsea King's Lynn and West Norfolk Kingston upon Hull Kingston upon Thames Kirklees Knowsley Lambeth Lancaster Leeds Leicester Lewes Lewisham Lichfield Lincoln Liverpool Luton Maidstone Maldon Malvern Hills Manchester Mansfield Medway Melton Merton Mid Devon Mid Suffolk Mid Sussex Middlesbrough Milton Keynes Mole Valley New Forest Newark and Sherwood Newcastle upon Tyne Newcastle-under-Lyme Newham North Devon North East Derbyshire North East Lincolnshire North Hertfordshire North Kesteven North Lincolnshire North Norfolk North Northamptonshire North Somerset North Tyneside North Warwickshire North West Leicestershire North Yorkshire Northumberland Norwich Nottingham Nuneaton and Bedworth Oadby and Wigston Oldham Oxford Pendle Peterborough Plymouth Portsmouth Preston Reading Redbridge Redcar and Cleveland Redditch Reigate and Banstead Ribble Valley Richmond upon Thames Rochdale Rochford Rossendale Rother Rotherham Rugby Runnymede Rushcliffe Rushmoor Rutland Salford Sandwell Sefton Sevenoaks Sheffield Shropshire Slough Solihull Somerset South Cambridgeshire South Derbyshire South Gloucestershire South Hams South Holland South Kesteven South Norfolk South Oxfordshire South Ribble South Staffordshire South Tyneside Southampton Southend-on-Sea Southwark Spelthorne St Albans St. Helens Stafford Staffordshire Moorlands Stevenage Stockport Stockton-on-Tees Stoke-on-Trent Stratford-on-Avon Stroud Sunderland Surrey Heath Sutton Swale Swindon Tameside Tamworth Tandridge Teignbridge Telford and Wrekin Tendring Test Valley Tewkesbury Thanet Three Rivers Thurrock Tonbridge and Malling Torbay Torridge Tower Hamlets Trafford Tunbridge Wells Uttlesford Vale of White Horse Wakefield Walsall Waltham Forest Wandsworth Warrington Warwick Watford Waverley Wealden Welwyn Hatfield West Berkshire West Devon West Lancashire West Lindsey West Northamptonshire West Oxfordshire West Suffolk Westminster Westmorland and Furness Wigan Wiltshire Winchester Windsor and Maidenhead Wirral Woking Wokingham Wolverhampton Worcester Worthing Wychavon Wyre Wyre Forest York
By postcode areaEvery district with a page
B — 45 districts
B5 B6 B7 B8 B9 B11 B12 B17 B18 B19 B21 B23 B24 B26 B29 B30 B31 B35 B36 B37 B42 B46 B47 B49 B50 B60 B61 B63 B64 B68 B69 B71 B73 B76 B77 B78 B79 B90 B91 B92 B94 B95 B96 B97 B98
BN — 22 districts
BN2 BN6 BN7 BN8 BN9 BN11 BN12 BN13 BN15 BN16 BN17 BN18 BN21 BN22 BN23 BN24 BN25 BN26 BN27 BN41 BN43 BN44
BS — 29 districts
BS1 BS2 BS3 BS4 BS5 BS6 BS8 BS9 BS10 BS11 BS13 BS15 BS16 BS20 BS21 BS22 BS23 BS24 BS26 BS27 BS28 BS29 BS30 BS31 BS34 BS35 BS37 BS39 BS40
CA — 23 districts
CA2 CA3 CA4 CA5 CA6 CA7 CA8 CA9 CA10 CA11 CA12 CA13 CA14 CA15 CA16 CA17 CA18 CA19 CA20 CA22 CA23 CA25 CA28
CM — 20 districts
CM0 CM1 CM2 CM3 CM4 CM6 CM7 CM8 CM9 CM11 CM12 CM13 CM16 CM19 CM20 CM21 CM22 CM23 CM24 CM77
CV — 21 districts
CV1 CV2 CV4 CV5 CV6 CV7 CV8 CV9 CV11 CV12 CV13 CV21 CV22 CV23 CV31 CV32 CV34 CV35 CV36 CV37 CV47
DE — 20 districts
DE1 DE4 DE5 DE6 DE7 DE12 DE13 DE14 DE15 DE21 DE22 DE23 DE24 DE45 DE55 DE56 DE65 DE72 DE73 DE74
DN — 25 districts
DN3 DN4 DN5 DN6 DN7 DN8 DN9 DN10 DN11 DN12 DN14 DN15 DN17 DN18 DN19 DN20 DN21 DN22 DN31 DN32 DN35 DN36 DN37 DN40 DN41
EX — 30 districts
EX1 EX2 EX3 EX4 EX5 EX6 EX7 EX8 EX9 EX10 EX11 EX12 EX13 EX14 EX15 EX16 EX17 EX20 EX22 EX23 EX24 EX31 EX32 EX33 EX34 EX35 EX36 EX37 EX38 EX39
GL — 26 districts
GL1 GL2 GL3 GL4 GL5 GL6 GL7 GL8 GL10 GL11 GL12 GL13 GL14 GL15 GL16 GL17 GL18 GL19 GL20 GL50 GL51 GL52 GL53 GL54 GL55 GL56
GU — 30 districts
GU1 GU2 GU3 GU4 GU5 GU6 GU7 GU8 GU9 GU10 GU11 GU12 GU15 GU16 GU17 GU19 GU22 GU23 GU24 GU27 GU28 GU29 GU32 GU33 GU34 GU35 GU46 GU47 GU51 GU52
HU — 19 districts
HU1 HU2 HU3 HU4 HU5 HU6 HU7 HU8 HU9 HU10 HU11 HU12 HU13 HU14 HU15 HU16 HU17 HU18 HU19
IP — 25 districts
IP6 IP7 IP8 IP9 IP11 IP12 IP13 IP14 IP15 IP17 IP18 IP19 IP20 IP21 IP22 IP23 IP24 IP25 IP26 IP27 IP28 IP29 IP30 IP31 IP33
LA — 23 districts
LA1 LA2 LA3 LA4 LA5 LA6 LA7 LA8 LA9 LA10 LA11 LA12 LA13 LA14 LA15 LA16 LA17 LA18 LA19 LA20 LA21 LA22 LA23
LE — 18 districts
LE2 LE3 LE4 LE5 LE7 LE8 LE9 LE10 LE11 LE12 LE13 LE14 LE15 LE16 LE17 LE18 LE65 LE67
LS — 24 districts
LS1 LS2 LS3 LS4 LS5 LS6 LS7 LS8 LS9 LS10 LS11 LS12 LS13 LS17 LS18 LS19 LS20 LS21 LS22 LS23 LS24 LS25 LS26 LS29
M — 25 districts
M1 M3 M4 M6 M7 M8 M9 M14 M15 M16 M20 M21 M22 M23 M24 M26 M28 M29 M30 M32 M33 M40 M41 M44 M46
NE — 28 districts
NE1 NE3 NE8 NE11 NE12 NE16 NE17 NE19 NE20 NE21 NE23 NE24 NE28 NE29 NE42 NE43 NE45 NE46 NE47 NE48 NE49 NE61 NE64 NE65 NE66 NE67 NE70 NE71
NG — 27 districts
NG1 NG2 NG4 NG5 NG6 NG7 NG8 NG9 NG10 NG11 NG12 NG13 NG14 NG15 NG16 NG18 NG19 NG20 NG21 NG22 NG23 NG24 NG25 NG31 NG32 NG33 NG34
NR — 25 districts
NR1 NR6 NR7 NR8 NR9 NR10 NR11 NR12 NR13 NR14 NR16 NR17 NR18 NR19 NR20 NR21 NR23 NR25 NR29 NR30 NR31 NR32 NR33 NR34 NR35
OX — 22 districts
OX1 OX2 OX3 OX4 OX5 OX7 OX10 OX11 OX12 OX13 OX14 OX15 OX16 OX17 OX18 OX25 OX26 OX28 OX29 OX33 OX44 OX49
PE — 30 districts
PE1 PE2 PE6 PE7 PE8 PE9 PE10 PE11 PE12 PE13 PE14 PE15 PE16 PE19 PE20 PE22 PE23 PE24 PE25 PE26 PE27 PE28 PE29 PE30 PE31 PE32 PE33 PE34 PE36 PE38
PL — 29 districts
PL1 PL4 PL5 PL6 PL7 PL8 PL9 PL10 PL11 PL12 PL13 PL14 PL15 PL16 PL17 PL18 PL19 PL20 PL21 PL22 PL23 PL24 PL25 PL26 PL27 PL28 PL30 PL31 PL32
PO — 31 districts
PO1 PO2 PO3 PO4 PO5 PO6 PO7 PO9 PO10 PO11 PO12 PO13 PO14 PO15 PO16 PO17 PO18 PO19 PO20 PO21 PO22 PO30 PO31 PO32 PO33 PO34 PO35 PO36 PO38 PO40 PO41
RG — 25 districts
RG1 RG2 RG4 RG6 RG7 RG8 RG9 RG10 RG12 RG14 RG17 RG18 RG19 RG20 RG21 RG24 RG26 RG27 RG28 RG29 RG30 RG40 RG41 RG42 RG45
S — 34 districts
S1 S2 S3 S4 S6 S7 S8 S9 S10 S11 S17 S18 S20 S21 S32 S33 S35 S36 S40 S41 S43 S45 S60 S62 S63 S64 S65 S70 S71 S72 S73 S75 S80 S81
SO — 20 districts
SO14 SO15 SO16 SO17 SO18 SO19 SO20 SO21 SO23 SO24 SO30 SO31 SO32 SO40 SO41 SO42 SO45 SO50 SO51 SO53
TA — 21 districts
TA1 TA2 TA3 TA4 TA5 TA6 TA7 TA8 TA9 TA10 TA11 TA12 TA13 TA14 TA18 TA19 TA20 TA21 TA22 TA23 TA24
TN — 31 districts
TN2 TN3 TN8 TN9 TN10 TN11 TN12 TN13 TN14 TN15 TN16 TN17 TN18 TN21 TN22 TN23 TN24 TN25 TN26 TN27 TN28 TN29 TN31 TN32 TN33 TN34 TN35 TN36 TN38 TN39 TN40
What this page shows, and what it misses
The Environment Agency's count of properties in each postcode that sit in areas of land at very low, low, medium or high risk of flooding from rivers and the sea, allowing for flood defences and their condition, added up here by postcode district and local authority. Every property in England is counted once, so the share is of all properties in the area.
It misses: surface water (heavy rain), groundwater, sewer and reservoir flooding; Wales, Scotland and Northern Ireland; and anything about a single building. A band describes the land a property stands on, not its floor level or flood protection, so it is not a forecast for any one home. Past floods come from the EA's Recorded Flood Outlines and are placed in the postcode district whose centre is nearest (within 12 km), so a flood near a boundary can be listed under a neighbour. Older records are patchy, and a flood with no outline is not listed.
Districts with fewer than 10 postcodes at risk or fewer than 25 properties at high or medium risk still have a page, but it is not offered to search engines.
Before you buy, rent or insure
- Check the address itself on gov.uk (rivers and sea, surface water, reservoirs, groundwater).
- Ask the seller or landlord whether the property has flooded and whether it has flood protection.
- Flood Re helps many homes at high risk get insurance: floodre.co.uk.
- Sign up for free warnings: gov.uk/get-flood-warnings. Live now: flood warnings UK.
FAQQuestions people ask
How many properties in England are at risk of flooding?
Across England, 673,373 of 31,154,906 properties (2.2%) are in areas at high or medium risk of flooding from rivers and the sea, per Environment Agency data updated 6 July 2026. Postcode district PE11 has the most (17,925) and East Lindsey the most of any local authority (23,529). Counting every band, 2,455,302 properties are in areas with some risk from rivers and the sea.
Which part of England has the most properties at flood risk?
East Lindsey has the most properties at high or medium risk from rivers and the sea (23,529), and postcode district PE11 the most of any district (17,925).
What do high, medium, low and very low flood risk mean?
They are the Environment Agency's chance of flooding in any one year: high is 3.3% (1 in 30) or more; medium 1% to 3.3%; low 0.1% to 1%; very low under 0.1%. They allow for flood defences and their condition.
Does this cover Wales, Scotland or surface water?
No. It is England only and counts flooding from rivers and the sea. Wales is covered by Natural Resources Wales and Scotland by SEPA; surface water risk for one address is on gov.uk.
Flood risk counts: Environment Agency, Risk of Flooding from Rivers and Sea – Postcodes in Areas at Risk and Recorded Flood Outlines, used under the Open Government Licence v3.0. © Environment Agency copyright and/or database right 2025. All rights reserved. Some features of this information 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.
Local authority of each postcode: Office for National Statistics postcode lookup (May 2026), licensed under the Open Government Licence v3.0. Contains OS data © Crown copyright and database right 2026. Contains Royal Mail data © Royal Mail copyright and database right 2026. District centres and place names: postcodes.io (ONS/OS open data). Totals, ranks and grouping are Global Incident Tracker's own calculations; the Environment Agency does not endorse them.