The E (Eastern) postcode area, also known as the London E postcode area, is the part of the London post town covering much of the east of Greater London, England as well as Sewardstone and Sewardstonebury, Essex. It borders the N postcode area to the west, both north of the tidal Thames. Since closure of the East London mail centre its mail is sorted at Romford Mail Centre together with IG and RM postcode areas.
The RM postcode area, also known as the Romford postcode area, is a group of twenty postcode districts in south-east England, within nine post towns. These cover parts of eastern Greater London and south-west Essex. Inward mail for the area is sorted, along with mail for the E and IG postcode areas, at the Romford Mail Centre.
The IG postcode area, also known as the Ilford postcode area, is a group of eleven postcode districts in England, within six post towns. These cover parts of eastern Greater London and south-west Essex. Inward mail for the area is sorted, along with mail for the E and RM postcode areas, at the Romford Mail Centre.
The KT postcode area, also known as the Kingston upon Thames postcode area, is a group of 24 postcode districts in England, within 19 post towns. These cover parts of southwestern Greater London and northern Surrey.
The CR postcode area, also known as the Croydon postcode area, is a group of eight postcode districts in England, within ten post towns. These cover parts of southern Greater London and north-east Surrey.
The EN postcode area, also known as the Enfield postcode area, is a group of eleven postcode districts in England, within seven post towns. These cover parts of northern Greater London, southern Hertfordshire and western Essex.
The BR postcode area, also known as the Bromley postcode area, is a group of eight postcode districts in England, within seven post towns. These cover part of south-eastern Greater London, as well as a small part of north-west Kent.
The TW postcode area, also known as the Twickenham postcode area, is a group of twenty postcode districts in south-east England, within thirteen post towns. These cover parts of south-west London and north-west Surrey, plus a very small part of Berkshire.
The DA postcode area, also known as the Dartford postcode area, is a group of eighteen postcode districts in England, within eleven post towns. These cover parts of south-east London and north-west Kent.
The CM postcode area, also known as the Chelmsford postcode area, is a group of 25 postcode districts in England, within 16 post towns. These cover central Essex, plus a small part of east Hertfordshire and a very small part of the London Borough of Havering.
The UB postcode area, also known as the Uxbridge postcode area, is a group of eleven postcode districts in England, within six post towns. These cover parts of western and north-western Greater London, plus a very small part of Buckinghamshire. The letters in the postcodes are the phonemic abbreviation of Uxbridge.
The HA postcode area, also known as the Harrow postcode area, is a group of ten postcode districts in England, within seven post towns. These cover part of northwest London, plus a very small part of south Hertfordshire.
The GU postcode area, also known as the Guildford postcode area, is a group of 38 postcode districts in South East England, within 24 post towns. These cover west Surrey, north-east Hampshire, northwestern West Sussex and a small part of south-east Berkshire.
The WD postcode area, also known as the Watford postcode area, is a group of eleven postcode districts in Greater London and Hertfordshire, within seven post towns. These cover south-west Hertfordshire, plus very small parts of Buckinghamshire and the London Borough of Hillingdon.
The BL postcode area, also known as the Bolton postcode area, is a group of ten postcode districts in North West England. These cover most of the Metropolitan Borough of Bolton and the northern and central parts of the Metropolitan Borough of Bury in Greater Manchester, plus small parts of the boroughs of Chorley, Rossendale and Blackburn with Darwen in Lancashire.
The ME postcode area, also known as the Rochester postcode area, is a group of twenty postcode districts in South East England, within eleven post towns. These cover north central Kent, including the Medway unitary authority and the borough of Swale, plus parts of the boroughs of Maidstone, Tonbridge and Malling, and Gravesham. The letters in the postcode are derived from the name of the Medway conurbation.
The RH postcode area, also known as the Redhill postcode area, is a group of twenty postcode districts in South East England, within seventeen post towns. These cover east Surrey and northeastern West Sussex plus small parts of northwestern East Sussex.
The TN postcode area, also known as the Tunbridge Wells postcode area, is a group of 40 postcode districts in England, within 24 post towns. These cover south Kent and northern and eastern East Sussex, plus very small parts of Surrey and the London Borough of Bromley.
The SL postcode area, also known as the Slough postcode area, is a group of ten postcode districts in South East England, within eight post towns. These cover east Berkshire and south Buckinghamshire, plus a very small part of south-west Hertfordshire.
The HX postcode area, also known as the Halifax postcode area, is a group of seven postcode districts in England, within four post towns. These cover most of the Metropolitan Borough of Calderdale in western West Yorkshire, including Halifax, Elland, Sowerby Bridge and Hebden Bridge.
