SL postcode area

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Postcode district boundaries:

KML is from Wikidata
Slough postcode area
SL is located in the United Kingdom
Postcode areaSL
Postcode area nameSlough
Post towns8
Postcode districts12
Postcode sectors58
Postcodes (live)10,882
Postcodes (total)15,991
Statistics as at February 2012[1]

The SL postcode area, also known as the Slough postcode area,[2] is a group of ten postcode districts in South East England, within eight post towns. These cover east Berkshire (including Slough, Maidenhead, Windsor and Ascot) and south-east Buckinghamshire (including Iver, Gerrards Cross, Marlow and Bourne End).

Mail for this area is sorted in Greenford (Green Park Way).


The approximate coverage of the postcode districts:

Postcode district Post town Coverage Local authority area(s)
SL0 IVER Iver, Iver Heath, Richings Park, Thorney South Bucks
SL1 SLOUGH Slough, Burnham, Cippenham, Farnham Royal, Stoke Poges, Littleworth, Farnham Common South Bucks, Slough
SL2 SLOUGH Britwell, Farnham Common, Farnham Royal, Stoke Poges, Egypt, Hedgerley South Bucks, Slough
SL3 SLOUGH Langley, Datchet, Colnbrook, Poyle, Horton, Fulmer, George Green, Wexham, part of Richings Park Slough, South Bucks, Windsor and Maidenhead
SL4 WINDSOR Windsor, Old Windsor, Eton, Eton Wick, Clewer, Dedworth, Cranbourne, Winkfield, Dorney, Spital, Oakley Green, Woodside, Boveney, part of Fifield Windsor and Maidenhead, Bracknell Forest, South Bucks, Slough
SL5 ASCOT Ascot, Sunninghill, Sunningdale, North Ascot, South Ascot, Burleigh, Cheapside Windsor and Maidenhead, Bracknell Forest
SL6 MAIDENHEAD Maidenhead, Taplow, parts of Cippenham Slough, Bray, Bray Wick, Cookham, Cookham Dean, Cookham Rise, White Waltham, Hurley, Hurley Bottom, Holyport, Pinkneys Green, Woodlands Park, Furze Platt, Hitcham, Littlewick Green, Burchett's Green, Paley Street, Stud Green, Touchen End, part of Fifield, Windsor and Maidenhead, South Bucks
SL7 MARLOW Marlow, Marlow Bottom, Little Marlow, Medmenham, Bisham, Lower Woodend Wycombe, Windsor and Maidenhead
SL8 BOURNE END Bourne End, Well End Wycombe
SL9 GERRARDS CROSS Gerrards Cross, Chalfont St Peter, Chalfont Common, Horn Hill South Bucks, Chiltern
SL60 SLOUGH Jobcentre Plus non-geographic
SL95 SLOUGH Royal Mail non-geographic

WM postcode area[edit]

In 2008, a group of residents in the Royal Borough of Windsor and Maidenhead campaigned to have Windsor and Maidenhead's SL postcodes replaced with WM postcodes, claiming the association with Slough affected the towns' statuses as "desirable places to live". Royal Mail later stated that the campaign would be unlikely to succeed.[3]


KML is from Wikidata
SL postcode area map, showing postcode districts, post towns and neighbouring postcode areas.GU postcode areaHA postcode areaHP postcode areaKT postcode areaRG postcode areaTW postcode areaUB postcode areaWD postcode area
SL postcode area map, showing postcode districts in red and post towns in grey text, with links to nearby GU, HP, KT, RG, TW, UB and WD postcode areas.

See also[edit]


  1. ^ "ONS Postcode Directory Version Notes" (ZIP). National Statistics Postcode Products. Office for National Statistics. February 2012. Table 2. Retrieved 21 April 2012. Coordinates from mean of unit postcode points, "Code-Point Open". OS OpenData. Ordnance Survey. February 2012. Retrieved 21 April 2012.
  2. ^ Royal Mail, Address Management Guide, (2004)
  3. ^ "Windsor war over a Slough postcode". Daily Telegraph. 26 January 2008. Retrieved 9 April 2018.

External links[edit]