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Welwyn Flood Map
Map of Welwyn (Hertfordshire) postcodes and their flood risks. Each postcode is assigned a risk of high, medium, low, or very low, and then plotted on a Welwyn flood map. Most Welwyn postcodes are low flood risk, with some high flood risk postcodes.
Status:
High
Medium
Low
Very Low
IMPORTANT: We have taken a single point within a Welwyn 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 Welwyn
| Place | Distance |
|---|---|
| Danesbury flood map | 350 m |
| Digswell Park flood map | 1.5 km |
| Digswell flood map | 1.9 km |
| Digswell Water flood map | 2.0 km |
| Haldens flood map | 2.6 km |
| Welwyn Garden City flood map | 2.9 km |
| Codicote Bottom flood map | 3.0 km |
| Handside flood map | 3.6 km |
| Lemsford flood map | 3.7 km |
| Panshanger flood map | 4.5 km |
Source: Open Flood Risk by Postcode
Licence: Open Government Licence
More Welwyn 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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