🇬🇧 United Kingdom · England

Southampton postcodes

Southampton, England, has 11 postcode districts, from SO14 to SO50. Which one applies depends on the street address.

Postcode Districts
11
Population
269,781
Region
England
Coordinates
50.904, -1.4043

All Southampton postcode districts

SO14SO15SO16SO17SO18SO19SO30SO31SO40SO45SO50

Includes codes within a few kilometres of the city centre. Data: GeoNames (CC BY 4.0) and zipcodestack.

UK postcodes have two parts. These lists show the first part, the postcode district (outward code), e.g. SW1A. A full postcode such as SW1A 1AA covers around 15 addresses; the zipcodestack API covers 2.6 million full UK postcodes.

Frequently asked questions

What is the postcode of Southampton?

Southampton has 11 postcode districts in England. The right code depends on the street address; the list on this page shows all of them, starting with SO14.

How many postcode districts does Southampton have?

Our data lists 11 postcode districts for Southampton, United Kingdom. The list includes codes of the city centre and surrounding districts.

How do I find the exact postcode for an address in Southampton?

Use the official postal service lookup or a geocoding API with the full street address. For software, the zipcodestack API returns city, region and coordinates for any postcode and can search codes by city or by radius.

Postal code API

Southampton postcode districts in your app

zipcodestack looks up, validates and searches postal codes in 149 countries: city, state, coordinates, distances and radius search, as JSON.

/v1/code/city documentation ZIP code API All documentation

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GET https://api.zipcodestack.com/v1/code/city?city=Southampton&country=gb

{
  "query": { "city": "Southampton", "country": "gb" },
  "results": ["SO14", "…"]
}

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