NG34 Flood Risk
In postcode district NG34 (North Kesteven and South Kesteven), 554 of 27,124 properties (2.0%) 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 is the 327th highest count of 2,181 districts in England.
By bandProperties in NG34 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 | 192 | 112 |
| Medium | between 1% and 3.3% (1 in 100 to 1 in 30) chance in any year | 362 | 175 |
| Low | between 0.1% and 1% (1 in 1,000 to 1 in 100) chance in any year | 1,486 | 1,030 |
| Very low | less than 0.1% (1 in 1,000) chance in any year | 388 | 297 |
287 of the high- or medium-risk properties are homes and 67 are non-residential (shops, offices, farms, public buildings); the rest are unclassified. By share, NG34 ranks 633rd of 2,084 districts with at least 500 properties.
Postcode sectorsWhere in NG34 the risk sits
| Sector | Properties | High | Medium | Low | Very low | High + medium share |
|---|---|---|---|---|---|---|
| NG34 0 | 4,662 | 43 | 164 | 528 | 60 | 4.4% |
| NG34 6 | 641 | 0 | 0 | 0 | 0 | 0.0% |
| NG34 7 | 7,531 | 6 | 12 | 536 | 219 | 0.2% |
| NG34 8 | 7,143 | 61 | 38 | 107 | 18 | 1.4% |
| NG34 9 | 7,147 | 82 | 148 | 315 | 91 | 3.2% |
Recorded floodsPast floods mapped near NG34
The Environment Agency has mapped flood outlines on 10 dates near NG34 since 1977; the most recent started on 4 Jan 2025.
| Started | Place / name in the record | Source of flooding | Cause |
|---|---|---|---|
| 4 Jan 2025 – 10 Jan 2025 | Fluvial Helpringham 10 outlines | Main river | Channel capacity exceeded (no raised defences) |
| 2 Jan 2024 – 9 Jan 2024 | Fluvial Farroway Drain 6 outlines | Main river | Overtopping of defences |
| 20 Oct 2023 – 23 Oct 2023 | Fluvial Farroway Drain 18 outlines | Main river | Overtopping of defences |
| 15 Nov 2019 – 30 Nov 2019 | River Slea | Main river | Overtopping of defences |
| 7 Nov 2019 – 30 Nov 2019 | Ruskington Beck 2 outlines | Main river | Channel capacity exceeded (no raised defences) |
| 2 Oct 2019 – 25 Nov 2019 | Dorrington Dyke | Main river | Operational failure/breach of defence |
| 1 Oct 2019 – 2 Oct 2019 | Ruskington Beck 2 outlines | Main river | Channel capacity exceeded (no raised defences) |
| 11 Jun 2019 – 19 Jun 2019 | Ruskington Beck 2 outlines | Main river | Channel capacity exceeded (no raised defences) |
| 9 Apr 1998 – 11 Apr 1998 | Billingborough Ousemere Lode | Main river | Channel capacity exceeded (no raised defences) |
| 27 Feb 1977 – 1 Mar 1977 | Old River Slea | Main river | Groundwater/high water table |
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.
Local authorities in NG34
- North Kesteven — 24,526 properties, 380 at high or medium risk
- South Kesteven — 2,534 properties, 165 at high or medium risk
Parishes in NG34: Anwick, Asgarby and Howell, Aslackby and Laughton, Aswarby and Swarby, Aunsby and Dembleby, Billingborough, Braceby and Sapperton, Burton Pedwardine, Cranwell, Brauncewell and Byard's Leap, Ewerby and Evedon, Folkingham, Great Hale, Heckington, Helpringham, Horbling, Kirkby la Thorpe, Leasingham, Little Hale, Newton and Haceby, North Kyme, North Rauceby, Osbournby, Pickworth, Pointon and Sempringham, Roxholm, Ruskington, Scredington, Silk Willoughby, Sleaford, South Rauceby, Swaton, Threekingham, Walcot near Folkingham, Wilsford.
If you live in NG34
- Check your own address on gov.uk; it also covers surface water.
- Sign up for free flood warnings by phone, text or email: gov.uk/get-flood-warnings.
- See what is in force now on flood warnings UK, and river levels. Floodline: 0345 988 1188.
- Never walk or drive through flood water: why shallow water kills.
Nearby districts
FAQQuestions people ask
Is NG34 at risk of flooding?
In postcode district NG34 (North Kesteven and South Kesteven), 554 of 27,124 properties (2.0%) 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 is the 327th highest count of 2,181 districts in England.
How many homes in NG34 are at high risk of flooding?
112 homes (residential properties) in NG34 are in areas at high risk (3.3% or greater chance each year) and 175 at medium risk, out of 21,580 homes, per Environment Agency data updated 6 July 2026. This counts rivers and the sea only, not surface water.
Has NG34 flooded before?
The Environment Agency has mapped flood outlines on 10 dates near NG34 since 1977; the most recent started on 4 Jan 2025.
How do I check the flood risk for my own address in NG34?
Use the government's long-term flood risk checker (check-long-term-flood-risk.service.gov.uk): it shows rivers and the sea, surface water, reservoirs and groundwater for one address. District figures here are totals and cannot tell you about a single home.
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.