What area is the SM4 postcode in?

SM4 is a postcode district in Sutton, Sutton, London, England. It is part of the SM postcode area.

How many addresses are in the SM4 postcode?

The SM4 postcode district covers Sutton in Sutton. The exact address count can be retrieved via the APITier Postcode Lookup API.

How do I look up addresses in SM4 programmatically?

Use the APITier Postcode Lookup API: GET https://postcode.apitier.com/v1/postcodes/{postcode}?x-api-key=YOUR_KEY — where the postcode begins with SM4. The response returns all PAF addresses as structured JSON including building name, number, street, town, county, and geocoordinates.

Royal Mail PAF · London

SM4 Postcode — Sutton

SM4 is a postcode district in Sutton, Sutton, London, England. Use the lookup below to explore addresses within this postcode district.

SM4

Postcode District

SM — Sutton

Area

London

Region

Royal Mail PAF

Data Source

Postcode Lookup — SM4 DistrictSample

{
  "_note": "Sample response — enter any postcode above and click Lookup for live data",
  "status": 200,
  "result": {
    "postcode": "SM4 1AA",
    "quality": 1,
    "eastings": 522164,
    "northings": 211205,
    "country": "England",
    "nhs_ha": "London",
    "longitude": -0.2548,
    "latitude": 51.3532,
    "european_electoral_region": "London",
    "primary_care_trust": "Sutton",
    "region": "London",
    "lsoa": "Sutton 001A",
    "msoa": "Sutton 001",
    "incode": "1AA",
    "outcode": "SM4",
    "parliamentary_constituency": "Sutton",
    "admin_district": "Sutton",
    "parish": "Sutton, unparished area",
    "admin_county": null,
    "admin_ward": "Sutton Central",
    "ced": null,
    "ccg": "NHS London",
    "nuts": "Sutton",
    "codes": {
      "admin_district": "E07000000",
      "admin_county": "E99999999",
      "admin_ward": "E05000000",
      "parish": "E43000000",
      "parliamentary_constituency": "E14000000",
      "ccg": "E38000000",
      "lsoa": "E01000000",
      "msoa": "E02000000"
    }
  }
}

About the SM4 Postcode District

The SM4 postcode district is part of the Sutton (SM) postcode area, covering Sutton and surrounding areas in London, England.

Postcodes in the SM4 district follow the format SM4 nXX where n is a digit and XX are letters. Each inward code identifies a specific delivery walk within the district.

The wider Sutton postcode area (SM) also covers: Cheam, Carshalton, Wallington, Morden.

Frequently Asked Questions

What area does the SM4 postcode cover?

The SM4 postcode district covers Sutton in Sutton, London, England. It is one of 7 districts in the SM postcode area.

How do I look up all addresses in the SM4 postcode?

Use the live lookup widget above or call the APITier Postcode Lookup API: GET https://postcode.apitier.com/v1/postcodes/{full postcode}?x-api-key=YOUR_KEY. Replace {full postcode} with any complete postcode beginning SM4. The API returns all Royal Mail PAF addresses as structured JSON.

Is SM4 a valid UK postcode district?

Yes. SM4 is a Royal Mail postcode district in Sutton, England. Full UK postcodes in this district follow the format SM4 followed by a digit and two letters (e.g. SM4 1AA).

SM4 Postcode — Sutton

About the SM4 Postcode District

Frequently Asked Questions

Other Sutton Postcode Districts