TW2: 2.6 m clear of the highest tide in the London Bridge ledgers

The lowest postcode in TW2, TW2 7SD, stands 2.6 m above the highest tide in the London Bridge ledgers (5.41 m, 1 February 1953). The highest, TW2 6EG, stands 15 m above it.
- Ground at eight in ten of its postcodes: between 10 m and 20 m, measured from Ordnance Datum; the middle one stands at 16 m.
- None lies in the Environment Agency's Flood Zone 3 from the sea.
- Mostly in Richmond upon Thames; partly in Hounslow.