SE postcode area

The SE (South Eastern) postcode area, also known as the London SE postcode area, is the part of the London post town covering part of south-east London, England. It loosely corresponds to the London Borough of Southwark, London Borough of Lewisham and Royal Borough of Greenwich, the northern part of the London Borough of Croydon, the eastern part of the London Borough of Lambeth, the western part of the London Borough of Bexley and the northwestern part of the London Borough of Bromley.

More information on the Wikipedia page.