Map of Porthallow (Helston, Cornwall) flood risk areas, which includes areas of high, medium, and low flood risk, plotted on a Porthallow flood map.
| Place | Distance |
|---|---|
| Trenance flood map | 1.2 km |
| Porthoustock flood map | 1.6 km |
| St Keverne flood map | 2.1 km |
| Gillan flood map | 2.2 km |
| Flushing flood map | 2.2 km |
| St Anthony-in-Meneage flood map | 2.9 km |
| Carne flood map | 2.9 km |
| Tregidden flood map | 4.2 km |
| Mawnan flood map | 4.4 km |
| Helford flood map | 4.7 km |