N5: 16 m clear of the highest tide in the London Bridge ledgers

N5 on the relief of London, with a tide staff: 16 m above the 1953 tide, the highest in the ledgers.

The lowest postcode in N5, N5 1FJ, stands 16 m above the highest tide in the London Bridge ledgers (5.41 m, 1 February 1953). The highest, N5 1SN, stands 40 m above it.

Ground at eight in ten of its postcodes: between 26 m and 43 m, measured from Ordnance Datum; the middle one stands at 33 m.
None lies in the Environment Agency's Flood Zone 3 from the sea.
Mostly in Islington; partly in Hackney.

Open N5 on the map