SM postcode area

Postcode district boundaries:

KML is from Wikidata

The SM postcode area, also known as the Sutton postcode area,[2][3] 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.

SM is located in the United Kingdom
Coordinates: 51°21′47″N 0°11′10″W / 51.363°N 0.186°W / 51.363; -0.186
CountryUnited Kingdom
Postcode area
Postcode area name
Post towns5
Postcode districts7
Postcode sectors29
Postcodes (live)4,350
Postcodes (total)6,638
Statistics as at May 2020[1]

The main sorting office is in Sutton, with outgoing mail being sorted at Croydon Mail Centre. The area served includes most of the London Borough of Sutton, while most of SM4 covers the southwestern part of the London Borough of Merton. Most of SM7 and a small part of SM2 cover the northern part of the borough of Reigate and Banstead in Surrey, while SM2 also covers the village of East Ewell in the borough of Epsom and Ewell.

The official explanation for the 'M' in the postcode is unknown, though it might refer to Morden, one of the post towns within the area.


The approximate coverage of the postcode districts:[2]

Postcode district Post town Coverage Local authority area(s)
SM1 SUTTON Sutton, Rosehill, Parts of The Wrythe and Carshalton, Benhilton and Erskine Village, the eastern part of Sutton Common Sutton
SM2 SUTTON Belmont, South Sutton, South Cheam, East Ewell Sutton, Epsom and Ewell, Reigate and Banstead
SM3 SUTTON The western part of Sutton Common, North Cheam, Stonecot Hill Sutton, Epsom and Ewell
SM4 MORDEN Morden, Morden Park, Lower Morden, St. Helier (West), Rosehill Merton, Sutton
SM5 CARSHALTON Carshalton, Carshalton Beeches, Carshalton on the Hill, The Wrythe, Rosehill, St. Helier (South), Little Woodcote Sutton
SM6 WALLINGTON Wallington, Beddington, Hackbridge, Roundshaw Sutton
SM7 BANSTEAD Banstead, Woodmansterne, Nork, Little Woodcote Reigate and Banstead, Sutton


KML is from Wikidata
SM postcode area map, showing postcode districts in red and post towns in grey text, with links to nearby CR, KT and SW postcode areas.

See alsoEdit


  1. ^ "ONS Postcode Directory Version Notes" (ZIP). National Statistics Postcode Products. Office for National Statistics. May 2020. Table 2. Retrieved 19 June 2020. Coordinates from mean of unit postcode points, "Code-Point Open". OS OpenData. Ordnance Survey. February 2012. Retrieved 21 April 2012.
  2. ^ a b Address Management Guide (5th ed.). Royal Mail Group plc. March 2007. Retrieved 28 October 2012.
  3. ^ Office for National Statistics (1999). The Official Yearbook of the United Kingdom (PDF) (2000 ed.). London: The Stationery Office. "UK Postal Areas", map opposite p. 5. ISBN 0-11-621098-2. Retrieved 28 October 2012.

External linksEdit