SL postcode area

Postcode district boundaries: Bing / Google

The SL postcode area, also known as the Slough postcode area, is a group of ten postcode districts in England, which are subdivisions of eight post towns. These postcode districts cover east Berkshire and south-east Buckinghamshire.

The main sorting office is in Greenford (Green Park Way) and the area served includes virtually all of the borough of Slough, most of the Royal Borough of Windsor and Maidenhead and the eastern part of the Bracknell Forest district in Berkshire, and most of the South Bucks district, the southeastern part of the Wycombe district and a small part of the Chiltern district in Buckinghamshire.

Coverage

The approximate coverage of the postcode districts:

Map

See also

References

List of postcode areas in the United Kingdom

For the purposes of directing mail, the United Kingdom is divided by Royal Mail into postcode areas. The postcode area is the largest geographical unit used and forms the initial characters of the alphanumeric UK postcode. There are currently 121 geographic postcode areas in use in the UK and a further 3 often combined with these covering the Crown Dependencies of Guernsey, Jersey and Isle of Man.

Subdivision

Each postcode area is further divided into post towns and postcode districts. There are on average 20 postcode districts to a postcode area. The London post town is instead divided into several postcode areas.

Scope

The single or pair of letters chosen for postcode areas are generally intended as a mnemonic for the places served. Postcode areas, post towns and postcode districts do not follow political boundaries and usually serve much larger areas than the place names with which they are associated. For example, within the PA postcode area the PA1 and PA78 postcode districts are 140 miles apart; and the eight postcode areas of the London post town cover only 40% of Greater London. The remainder of its area is covered by sections of twelve adjoining postcode areas: EN, IG, RM, DA, BR, TN, CR, SM, KT, TW, HA and UB.