SM postcode area
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The SM postcode area, also known as the Sutton & Morden 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-east Surrey.
The main sorting office is in Sutton. Outgoing mail is sorted at Croydon Mail Centre in CR postcode area.
The area includes almost all of the London Borough of Sutton. Most of SM4 covers the southern part of the London Borough of Merton (emulates Morden). The southern bulk of SM7 and parts of SM2 respectively cover Banstead and adjoining Cuddington Croft (also called Howell Hill) and the Vale of Holmesdale village-named detached-home streets in (East) Ewell all of which will be in East Surrey when its Council first takes effect, from April 2027. This complex part of East Ewell lies in Cuddington, Surrey, a dated and largely unknown place name locally.
Coverage
The approximate coverage of the postcode districts:
| 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 | L.B. of Sutton |
| SM2 | SUTTON | Belmont, South Sutton, South Cheam, East Ewell (eastern half of) | L.B. of Sutton / Epsom and Ewell / Reigate and Banstead |
| SM3 | SUTTON | The western part of Sutton Common, North Cheam, Cheam village, Stonecot Hill | L.B. of Sutton / Epsom and Ewell |
| SM4 | MORDEN | Morden, Morden Park, Lower Morden, Cannon Hill, St. Helier (North), Rosehill | L.B.s of Merton & Sutton |
| SM5 | CARSHALTON | Carshalton, Carshalton Beeches, Carshalton on the Hill, The Wrythe, Rosehill, St. Helier (South), Little Woodcote | L.B. of Sutton |
| SM6 | WALLINGTON | Wallington, Beddington, Hackbridge, Roundshaw | L.B. of Sutton |
| SM7 | BANSTEAD | Banstead (including Nork), Woodmansterne, | Reigate and Banstead, L.B. of Sutton |
Map
