EN2: 19 m clear of the highest tide in the London Bridge ledgers

The lowest postcode in EN2, EN2 6JD, stands 19 m above the highest tide in the London Bridge ledgers (5.41 m, 1 February 1953). The highest, EN2 8AF, stands 98 m above it.
- Ground at eight in ten of its postcodes: between 31 m and 66 m, measured from Ordnance Datum; the middle one stands at 46 m.
- None lies in the Environment Agency's Flood Zone 3 from the sea.
- In Enfield.