W2: 6.6 m clear of the highest tide in the London Bridge ledgers

The lowest postcode in W2, W2 2WF, stands 6.6 m above the highest tide in the London Bridge ledgers (5.41 m, 1 February 1953). The highest, W2 1EJ, stands 30 m above it.
- Ground at eight in ten of its postcodes: between 20 m and 30 m, measured from Ordnance Datum; the middle one stands at 24 m.
- None lies in the Environment Agency's Flood Zone 3 from the sea.
- Mostly in Westminster; partly in Kensington and Chelsea.