East Lindsey Flood Risk
In East Lindsey, 23,529 of 128,279 properties (18.3%) are in areas at high or medium risk of flooding from rivers and the sea — at least a 1 in 100 chance in any year — per Environment Agency data updated 6 July 2026; that ranks 1st of 296 local authorities in England by number.
By bandProperties in East Lindsey by flood-risk band
| Risk band | Chance of flooding each year | All properties | Homes |
|---|---|---|---|
| High | 3.3% (1 in 30) or greater chance in any year | 7,742 | 4,961 |
| Medium | between 1% and 3.3% (1 in 100 to 1 in 30) chance in any year | 15,787 | 10,122 |
| Low | between 0.1% and 1% (1 in 1,000 to 1 in 100) chance in any year | 44,984 | 33,720 |
| Very low | less than 0.1% (1 in 1,000) chance in any year | 2,207 | 1,149 |
15,083 of the high- or medium-risk properties are homes and 5,307 are non-residential. 1,163 postcodes in East Lindsey have at least one property at high or medium risk.
Postcode districtsFlood risk across East Lindsey
Counts are for the part of each district inside East Lindsey.
| District | Properties | High + medium | High | Share |
|---|---|---|---|---|
| PE25 | 29,337 | 9,096 | 450 | 31.0% |
| PE24 | 14,704 | 3,620 | 1,752 | 24.6% |
| LN12 | 13,301 | 3,585 | 1,453 | 27.0% |
| LN11 | 22,896 | 3,070 | 1,980 | 13.4% |
| LN4 | 6,130 | 1,454 | 1,128 | 23.7% |
| PE22 | 7,374 | 1,437 | 559 | 19.5% |
| DN36 | 5,294 | 575 | 88 | 10.9% |
| PE23 | 6,829 | 259 | 132 | 3.8% |
| LN13 | 6,648 | 142 | 75 | 2.1% |
| LN9 | 7,935 | 141 | 31 | 1.8% |
| LN10 | 4,166 | 133 | 87 | 3.2% |
| LN8 | 3,644 | 11 | 2 | 0.3% |
| LN3 | 21 | 6 | 5 | 28.6% |
Recorded floodsPast floods mapped in East Lindsey
The Environment Agency has mapped flood outlines on 16 dates in postcode districts that mostly lie in East Lindsey since 1920; the most recent started on 4 Jan 2025.
1920s 1 1950s 1 1960s 1 1980s 1 1990s 1 2000s 1 2010s 7 2020s 3
| Started | Place / name in the record | Source of flooding | Cause | Districts |
|---|---|---|---|---|
| 4 Jan 2025 – 15 Jan 2025 | Fluvial Louth Canal 5 outlines | Main river | Overtopping of defences | LN10 LN11 |
| 2 Jan 2024 – 9 Jan 2024 | Fluvial Lower River Witham 12 outlines | Main river, ordinary watercourse | Overtopping of defences | LN10 |
| 20 Oct 2023 – 23 Oct 2023 | Fluvial Steeping 150 outlines | Main river, ordinary watercourse | Overtopping of defences | LN10 LN9 PE22 PE23 PE24 |
| 15 Nov 2019 – 30 Nov 2019 | Carr Dyke | Main river | Overtopping of defences | LN10 |
| 14 Nov 2019 – 24 Dec 2019 | Timberland Delph | Main river | Other | LN10 |
| 10 Nov 2019 – 30 Nov 2019 | Poulton Drain | Main river | Channel capacity exceeded (no raised defences) | LN11 |
| 8 Nov 2019 – 30 Nov 2019 | Billinghay Skirth | Main river | Overtopping of defences | LN10 |
| 13 Jun 2019 – 16 Jun 2019 | Horncastle 2 outlines | Main river | Other | LN9 |
| 11 Jun 2019 – 19 Jun 2019 | Horncastle Canal 24 outlines | Main river | Overtopping of defences | LN10 LN11 LN12 LN13 LN9 PE23 PE24 |
| 5 Dec 2013 – 7 Dec 2013 | Coastal Jubilee Bank | Sea | Operational failure/breach of defence | PE22 |
| 26 Jun 2007 | River Steeping 3 outlines | Main river | Channel capacity exceeded (no raised defences) | LN11 LN9 PE24 |
| 14 Oct 1993 – 18 Oct 1993 | East Fen Catchwater | Main river | Operational failure/breach of defence | PE22 |
| 26 Apr 1981 – 29 Apr 1981 | West Fen Catchwater 6 outlines | Main river | Operational failure/breach of defence | LN10 LN9 PE22 |
| 7 Oct 1960 – 8 Oct 1960 | River Waring | Main river | Channel capacity exceeded (no raised defences) | LN9 |
| 31 Jan 1953 – 1 Feb 1953 | Lincolnshire Coastline | Other | Overtopping of defences | LN11 |
| 29 May 1920 | River Lud 2 outlines | Main river | Obstruction/blockage - bridge | LN11 LN9 |
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.
"East Lindsey" means the local authority area (ONS code E07000137), not only the town centre.
If you live in East Lindsey
- Check your own address on gov.uk; it also covers surface water.
- Sign up for free flood warnings: gov.uk/get-flood-warnings. Floodline: 0345 988 1188.
- What is in force now: flood warnings UK · river levels.
- Never walk or drive through flood water: why shallow water kills.
FAQQuestions people ask
Is East Lindsey at risk of flooding?
In East Lindsey, 23,529 of 128,279 properties (18.3%) are in areas at high or medium risk of flooding from rivers and the sea — at least a 1 in 100 chance in any year — per Environment Agency data updated 6 July 2026; that ranks 1st of 296 local authorities in England by number.
Which parts of East Lindsey have the most properties at flood risk?
Postcode district PE25 has the most: 9,096 properties at high or medium risk (31.0% of its properties in East Lindsey). The table on this page lists every district.
When did East Lindsey last flood?
The Environment Agency has mapped flood outlines on 16 dates in postcode districts that mostly lie in East Lindsey since 1920; the most recent started on 4 Jan 2025.
Does this include surface water flooding?
No. These counts cover flooding from rivers and the sea only. Surface water (heavy rain) flooding affects more properties in England; check it for one address on gov.uk's long-term flood risk service.
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.