E7: 2.8 m clear of the highest tide in the London Bridge ledgers

The lowest postcode in E7, E7 8AY, stands 2.8 m above the highest tide in the London Bridge ledgers (5.41 m, 1 February 1953). The highest, E7 9EY, stands 9.4 m above it.
- Ground at eight in ten of its postcodes: between 9.3 m and 13 m, measured from Ordnance Datum; the middle one stands at 10 m.
- None lies in the Environment Agency's Flood Zone 3 from the sea.
- Mostly in Newham; partly in Waltham Forest.