Postcode district boundaries:
|Postcode area name|
|Statistics as at May 2020|
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.
Mail for this area is sorted at the Jubilee Mail Centre, Hounslow,and the area served includes most of the London Boroughs of Richmond upon Thames and Hounslow, the southernmost part of the London Borough of Hillingdon (including Heathrow Airport) and very small parts of the Royal Borough of Kingston upon Thames. In Surrey it covers virtually all of the borough of Spelthorne, the northern part of the borough of Runnymede and very small parts of the borough of Elmbridge, and in Berkshire it covers the village of Wraysbury in the Royal Borough of Windsor and Maidenhead.
The coverage of the postcode districts, naming all localities :
|Postcode district||Post town||Coverage||Local authority area(s)|
|TW1||TWICKENHAM||Twickenham, St. Margarets, Strawberry Hill (east)||Richmond upon Thames, Hounslow|
|TW2||TWICKENHAM||Twickenham (west) , Whitton, Strawberry Hill (west), Fulwell (north)||Richmond upon Thames|
|TW3||HOUNSLOW||Hounslow, Lampton, Whitton (north)||Hounslow, Richmond upon Thames|
|TW4||HOUNSLOW||Hounslow West, Hounslow Heath, Whitton (west), Cranford (south)||Hounslow, Richmond upon Thames|
|TW5||HOUNSLOW||Heston, Cranford (north), Osterley (west)||Hounslow|
|TW7||ISLEWORTH||Isleworth, Osterley (east and centre), Whitton (north-east)||Hounslow, Richmond upon Thames|
|TW8||BRENTFORD||Brentford, Kew Bridge, Syon Park, Brentford Ait||Hounslow, Richmond upon Thames|
|TW9||RICHMOND||Richmond, Kew, North Sheen (north)||Richmond upon Thames|
|TW10||RICHMOND||Ham, Petersham, Richmond Hill, North Sheen (south), Richmond Park||Richmond upon Thames, Kingston upon Thames|
|TW11||TEDDINGTON||Teddington, Fulwell (east), Bushy Park||Richmond upon Thames|
|TW12||HAMPTON||Hampton, Hampton Hill, Fulwell (west)||Richmond upon Thames|
|TW13||FELTHAM||Feltham (south of the railway line), Hanworth||Hounslow, Richmond upon Thames|
|TW14||FELTHAM||Feltham (north of the railway line), North Feltham, East Bedfont, Hatton||Hounslow, Hillingdon, Spelthorne|
|TW16||SUNBURY-ON-THAMES||Sunbury-on-Thames||Spelthorne, Elmbridge , Richmond upon Thames|
|TW17||SHEPPERTON||Shepperton, Upper Halliford, Charlton, Littleton||Spelthorne, Elmbridge|
|TW18||STAINES-UPON-THAMES||Staines-upon-Thames, Egham Hythe, Laleham||Spelthorne, Runnymede, Windsor and Maidenhead|
|TW19||STAINES-UPON-THAMES||Stanwell, Stanwell Moor, Wraysbury, Sunnymeads, Hythe End||Spelthorne, Windsor and Maidenhead, Hillingdon|
|TW20||EGHAM||Egham, Englefield Green, Thorpe||Runnymede|
The London Borough of Richmond upon Thames in southwest London forms part of Outer London and is the only London borough on both sides of the River Thames. It was created in 1965 when three smaller council areas amalgamated under the London Government Act 1963. It is governed by Richmond upon Thames London Borough Council and is divided into nineteen wards. The population is 198,019 and the major settlements are Barnes, Mortlake, Richmond, Twickenham, Teddington and Hampton.
The London postal district is the area in England of 241 square miles (620 km2) to which mail addressed to the London post town is delivered. The General Post Office under the control of the Postmaster General directed Sir Rowland Hill to devise the area in 1856 and throughout its history it has been subject to reorganisation and division into increasingly smaller postal units, with the early loss of two compass points and a minor retraction in 1866. It was integrated by the Post Office into the national postcode system of the United Kingdom during the early 1970s and corresponds to the N, NW, SW, SE, W, WC, E and EC postcode areas. The postal district has also been known as the London postal area. The County of London was much smaller, at 117 square miles (300 km2), but Greater London is much larger at 607 square miles (1,570 km2).
Middlesex is a historic county in southeast England. Its area is almost entirely within the wider urbanised area of London and mostly within the ceremonial county of Greater London, with small sections in neighbouring ceremonial counties. It was established in the Anglo-Saxon period from the territory of the Middle Saxons, and existed as an official administrative unit until 1965. The county is bounded to the south by the River Thames, and has the rivers Colne and Lea and a ridge of hills forming its other boundaries. The largely low-lying county, dominated by clay in its north and alluvium on gravel in its south, was the second smallest by area in 1831.
The W postcode area, also known as the London W postcode area is a group of postcode districts covering part of central and part of West London, England. The area originates from the Western (W1) and Paddington (W2-14) districts of the London postal district. This area covers 35 postcode districts and around 18,554 live postcodes.
Spelthorne is a local government district and borough in Surrey, England. Its council is based in Staines-upon-Thames; other settlements in the area include Ashford, Sunbury-on-Thames, Shepperton, Stanwell and Laleham.
Elmbridge is a local government district with borough status in Surrey, England. Its principal towns are Esher, Cobham, Walton-on-Thames, Weybridge and Molesey. It directly borders the London Borough of Richmond upon Thames and the London Royal Borough of Kingston upon Thames. Areas of the borough form a continuation of the Greater London built-up area, formerly falling into the Metropolitan Police District.
Sunbury-on-Thames is a town on the north bank of the River Thames in the Borough of Spelthorne, approximately 13 mi (21 km) southwest of central London. Historically part of the county of Middlesex, it was transferred to Surrey in 1965. Sunbury adjoins Feltham to the north, Hampton to the east, Ashford to the northwest and Shepperton to the southwest. Walton-on-Thames is to the south, on the opposite bank of the Thames.
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, 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.
Whitton is a residential area in the London Borough of Richmond upon Thames in south-west London, England. The majority of Whitton is covered by the two electoral wards of Heathfield and Whitton. Historically, the boundaries of Whitton were the north-western part of Twickenham manor, bounded internally by the sections of the River Crane and the Duke of Northumberland's River.
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 WC postcode area, also known as the London WC postcode area, is a group of postcode districts in central London, England. The area covered is of high density development, and includes parts of the City of Westminster and the London Boroughs of Camden and Islington, plus a very small part of the City of London.
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 SM postcode area, also known as the Sutton postcode area, is a group of seven postcode districts in England, within five post towns. These cover part of south-west London, as well as a small part of north Surrey.
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.
Twickenham is a House of Commons constituency in South-West London, represented in the House of Commons of the UK Parliament since 2019 by Munira Wilson of the Liberal Democrats.
The UB postcode area, also known as the Southall 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 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 RG postcode area, also known as the Reading postcode area, is a group of thirty postcode districts in England, within twelve post towns. These cover west and central Berkshire and north Hampshire, plus a small part of south-east Oxfordshire and very small parts of Buckinghamshire and Wiltshire.
The SW postcode area, also known as the London SW postcode area, is a group of 29 postcode districts of a broad radial swathe of southwest London, England covering around 19,890 live postcodes as far as Mortlake, Streatham and Raynes Park. The area straightforwardly succeeds a shorter-lived South Western (SW1–SW10) and Battersea (SW11–SW20) split between its components of the London post town.