NW2: 31 m clear of the highest tide in the London Bridge ledgers

The lowest postcode in NW2, NW2 5NH, stands 31 m above the highest tide in the London Bridge ledgers (5.41 m, 1 February 1953). The highest, NW2 2HG, stands 92 m above it.
- Ground at eight in ten of its postcodes: between 43 m and 66 m, measured from Ordnance Datum; the middle one stands at 52 m.
- None lies in the Environment Agency's Flood Zone 3 from the sea.
- Mostly in Brent; partly in Barnet.