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Sizewell Flood Map
Map of Sizewell (Leiston, Suffolk) postcodes and their flood risks. Each postcode is assigned a risk of high, medium, low, or very low, and then plotted on a Sizewell flood map. In the case of Sizewell, all postcodes are high flood risk.
Status:
High
Medium
Low
Very Low
IMPORTANT: We have taken a single point within a Sizewell postcode using Open Postcode Geo and identified the flood risk area which that point falls within. There maybe other points within the postcode which fall into a different area, and hence have a different risk level.
Flood maps for other places near Sizewell
| Place | Distance |
|---|---|
| Leiston flood map | 2.9 km |
| Thorpeness flood map | 3.2 km |
| Aldringham flood map | 3.3 km |
| Eastbridge flood map | 4.1 km |
| North Warren flood map | 4.1 km |
| Coldfair Green flood map | 4.2 km |
| Knodishall flood map | 4.9 km |
| Theberton flood map | 5.0 km |
| Aldeburgh flood map | 6.3 km |
| Friston flood map | 6.6 km |
Source: Open Flood Risk by Postcode
Licence: Open Government Licence
More Sizewell data
- Contains OS data © Crown copyright and database right (2026)
- Contains Royal Mail data © Royal Mail copyright and Database right (2026)
- Contains National Statistics data © Crown copyright and database right (2026)
- Data produced by Land Registry © Crown copyright (2026)
- Contains Environment Agency data licensed under the Open Government Licence v3.0
- Everything else © GetTheData Publishing Limited (2026)
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