North Kesteven Flood Risk
In North Kesteven, 2,648 of 71,615 properties (3.7%) 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 79th of 296 local authorities in England by number.
By bandProperties in North Kesteven 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 | 1,810 | 850 |
| Medium | between 1% and 3.3% (1 in 100 to 1 in 30) chance in any year | 838 | 413 |
| Low | between 0.1% and 1% (1 in 1,000 to 1 in 100) chance in any year | 2,111 | 1,309 |
| Very low | less than 0.1% (1 in 1,000) chance in any year | 459 | 321 |
1,263 of the high- or medium-risk properties are homes and 245 are non-residential. 275 postcodes in North Kesteven have at least one property at high or medium risk.
Postcode districtsFlood risk across North Kesteven
Counts are for the part of each district inside North Kesteven.
Recorded floodsPast floods mapped in North Kesteven
The Environment Agency has mapped flood outlines on 13 dates in postcode districts that mostly lie in North Kesteven since 1977; the most recent started on 4 Jan 2025.
1970s 1 1990s 1 2010s 8 2020s 3
| Started | Place / name in the record | Source of flooding | Cause | Districts |
|---|---|---|---|---|
| 4 Jan 2025 – 10 Jan 2025 | Fluvial Helpringham 11 outlines | Main river | Channel capacity exceeded (no raised defences) | LN4 NG34 |
| 2 Jan 2024 – 9 Jan 2024 | Fluvial Dorrington Dyke 11 outlines | Main river | Overtopping of defences | LN4 NG34 |
| 20 Oct 2023 – 23 Oct 2023 | Fluvial Dorrington Dyke 37 outlines | Main river, ordinary watercourse | Overtopping of defences | LN4 NG34 |
| 15 Nov 2019 – 30 Nov 2019 | River Slea | Main river | Overtopping of defences | NG34 |
| 14 Nov 2019 – 24 Dec 2019 | Timberland Delph | Main river | Operational failure/breach of defence | LN4 |
| 12 Nov 2019 – 30 Nov 2019 | Carr Dyke | Main river | Channel capacity exceeded (no raised defences) | LN4 |
| 8 Nov 2019 – 30 Nov 2019 | Billinghay Skirth | Main river | Overtopping of defences | LN4 |
| 7 Nov 2019 – 30 Nov 2019 | Ruskington Beck 2 outlines | Main river | Channel capacity exceeded (no raised defences) | NG34 |
| 2 Oct 2019 – 25 Nov 2019 | Dorrington Dyke | Main river | Operational failure/breach of defence | NG34 |
| 1 Oct 2019 – 2 Oct 2019 | Digby Beck 8 outlines | Main river | Channel capacity exceeded (no raised defences) | LN4 NG34 |
| 11 Jun 2019 – 19 Jun 2019 | Ruskington Beck 2 outlines | Main river | Channel capacity exceeded (no raised defences) | NG34 |
| 9 Apr 1998 – 11 Apr 1998 | Billingborough Ousemere Lode | Main river | Channel capacity exceeded (no raised defences) | NG34 |
| 27 Feb 1977 – 1 Mar 1977 | Old River Slea | Main river | Groundwater/high water table | NG34 |
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.
"North Kesteven" means the local authority area (ONS code E07000139), not only the town centre.
If you live in North Kesteven
- 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 North Kesteven at risk of flooding?
In North Kesteven, 2,648 of 71,615 properties (3.7%) 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 79th of 296 local authorities in England by number.
Which parts of North Kesteven have the most properties at flood risk?
Postcode district LN4 has the most: 1,380 properties at high or medium risk (7.1% of its properties in North Kesteven). The table on this page lists every district.
When did North Kesteven last flood?
The Environment Agency has mapped flood outlines on 13 dates in postcode districts that mostly lie in North Kesteven since 1977; 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.