What area is the SA20 postcode in?

SA20 is a postcode district in Swansea, Swansea, Wales. It is part of the SA postcode area.

How many addresses are in the SA20 postcode?

The SA20 postcode district covers Swansea in Swansea. The exact address count can be retrieved via the APITier Postcode Lookup API.

How do I look up addresses in SA20 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 SA20. The response returns all PAF addresses as structured JSON including building name, number, street, town, county, and geocoordinates.

Royal Mail PAF · Wales

SA20 Postcode — Swansea

SA20 is a postcode district in Swansea, Swansea, Wales. Use the lookup below to explore addresses within this postcode district.

SA20

Postcode District

SA — Swansea

Area

Wales

Region

Royal Mail PAF

Data Source

Postcode Lookup — SA20 DistrictSample

{
  "_note": "Sample response — enter any postcode above and click Lookup for live data",
  "status": 200,
  "result": {
    "postcode": "SA20 1AA",
    "quality": 1,
    "eastings": 264872,
    "northings": 243173,
    "country": "Wales",
    "nhs_ha": "Wales",
    "longitude": -3.9304,
    "latitude": 51.6412,
    "european_electoral_region": "Wales",
    "primary_care_trust": "Swansea",
    "region": "Wales",
    "lsoa": "Swansea 001A",
    "msoa": "Swansea 001",
    "incode": "1AA",
    "outcode": "SA20",
    "parliamentary_constituency": "Swansea",
    "admin_district": "Swansea",
    "parish": "Swansea, unparished area",
    "admin_county": null,
    "admin_ward": "Swansea Central",
    "ced": null,
    "ccg": "NHS Wales",
    "nuts": "Swansea",
    "codes": {
      "admin_district": "E07000000",
      "admin_county": "E99999999",
      "admin_ward": "E05000000",
      "parish": "E43000000",
      "parliamentary_constituency": "E14000000",
      "ccg": "E38000000",
      "lsoa": "E01000000",
      "msoa": "E02000000"
    }
  }
}

About the SA20 Postcode District

The SA20 postcode district is part of the Swansea (SA) postcode area, covering Swansea and surrounding areas in Wales, Wales.

Postcodes in the SA20 district follow the format SA20 nXX where n is a digit and XX are letters. Each inward code identifies a specific delivery walk within the district.

The wider Swansea postcode area (SA) also covers: Neath, Port Talbot, Llanelli, Ammanford, Haverfordwest.

Frequently Asked Questions

What area does the SA20 postcode cover?

The SA20 postcode district covers Swansea in Swansea, Wales. It is one of 51 districts in the SA postcode area.

How do I look up all addresses in the SA20 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 SA20. The API returns all Royal Mail PAF addresses as structured JSON.

Is SA20 a valid UK postcode district?

Yes. SA20 is a Royal Mail postcode district in Swansea, Wales. Full UK postcodes in this district follow the format SA20 followed by a digit and two letters (e.g. SA20 1AA).

SA20 Postcode — Swansea

About the SA20 Postcode District

Frequently Asked Questions

Other Swansea Postcode Districts