WA55 Flood Risk
No property in postcode district WA55 (Warrington) is in an area at high or medium risk of flooding from rivers and the sea, per Environment Agency data updated 6 July 2026.
By bandProperties in WA55 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 | 0 | 0 |
| Medium | between 1% and 3.3% (1 in 100 to 1 in 30) chance in any year | 0 | 0 |
| Low | between 0.1% and 1% (1 in 1,000 to 1 in 100) chance in any year | 0 | 0 |
| Very low | less than 0.1% (1 in 1,000) chance in any year | 0 | 0 |
0 of the high- or medium-risk properties are homes and 0 are non-residential (shops, offices, farms, public buildings); the rest are unclassified.
Recorded floodsPast floods mapped near WA55
The Environment Agency has mapped flood outlines on 14 dates near WA55 since 1978; the most recent started on 1 Jan 2025.
| Started | Place / name in the record | Source of flooding | Cause |
|---|---|---|---|
| 1 Jan 2025 | Warrington Dallam NYE/NYD 41 outlines | Main river, other | Not recorded |
| 9 Apr 2024 – 10 Apr 2024 | Warrington Bottle Gas | Main river | Channel capacity exceeded (no raised defences) |
| 20 Jan 2021 | Warrington Dallam 9 outlines | Main river | Channel capacity exceeded (no raised defences) |
| 5 Dec 2013 | BottleGas 3 outlines | Ordinary watercourse | Channel capacity exceeded (no raised defences) |
| 10 Jan 2008 – 11 Jan 2008 | Drain HighamAve | Drainage | Local drainage/surface water |
| 1 Feb 2002 – 2 Feb 2002 | Mersey Estuary Warrington 3 outlines | Not recorded | Operational failure/breach of defence |
| 31 Jan 2002 – 1 Feb 2002 | — 4 outlines | Not recorded | Overtopping of defences |
| 15 May 2001 – 16 May 2001 | — | Not recorded | Channel capacity exceeded (no raised defences) |
| 16 Nov 2000 – 17 Nov 2000 | — | Not recorded | Other |
| 28 Oct 2000 – 29 Oct 2000 | — 20 outlines | Main river, ordinary watercourse | Channel capacity exceeded (no raised defences) |
| 3 Jun 2000 – 4 Jun 2000 | — 2 outlines | Not recorded | Other |
| 23 Dec 1999 – 24 Dec 1999 | — | Not recorded | Channel capacity exceeded (no raised defences) |
| 26 Feb 1990 – 27 Feb 1990 | — | Ordinary watercourse | Channel capacity exceeded (no raised defences) |
| 28 Dec 1978 – 29 Dec 1978 | — 4 outlines | Main river | Not recorded |
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 WA55
- Warrington — 1 properties, 0 at high or medium risk
Parishes in WA55: Burtonwood and Westbrook.
If you live in WA55
- 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 WA55 at risk of flooding?
No property in postcode district WA55 (Warrington) is in an area at high or medium risk of flooding from rivers and the sea, per Environment Agency data updated 6 July 2026.
How many homes in WA55 are at high risk of flooding?
0 homes (residential properties) in WA55 are in areas at high risk (3.3% or greater chance each year) and 0 at medium risk, out of 0 homes, per Environment Agency data updated 6 July 2026. This counts rivers and the sea only, not surface water.
Has WA55 flooded before?
The Environment Agency has mapped flood outlines on 14 dates near WA55 since 1978; the most recent started on 1 Jan 2025.
How do I check the flood risk for my own address in WA55?
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.