UK Postcode Lookup: Region, Constituency & Coordinates (Bulk)

Look up UK postcodes and get country, region, admin district, ward, parish, Westminster constituency, LSOA/MSOA codes, deprivation index and latitude/longitude. Uses the free Postcodes.io API (ONS Postcode Directory + OS Open Names, Open Government Licence), no key needed.

What does UK Postcode Lookup do?

Bulk UK postcode lookup: country, region, council, ward, constituency, LSOA/MSOA and lat/long.

What can you use it for?

• Enrich UK customer or lead lists with region and constituency.
• Find the Westminster constituency for a list of postcodes.
• Get coordinates for mapping UK addresses.
• Join postcodes to ONS statistical areas (LSOA/MSOA) for analysis.

Why use this Actor?

• Fast and cheap: lightweight HTTP-based Actor with no browser, so runs finish in seconds and cost very little.
• No API keys or accounts needed for the data source (see notes below).
• Clean, structured JSON that you can export as CSV, Excel, JSON or XML, or pull through the Apify API and integrations.
• Scheduling, webhooks and integrations: run it daily and send results to Google Sheets, Slack, Zapier, Make, n8n or your own API.

Input

Configure the run in the Input tab (all fields have sensible defaults).

Field	Type	Required	Default	Description
postcodes	array of strings	yes	-	One postcode per line, e.g. SW1A 2AA.

Example input

{
  "postcodes": [
    "SW1A 2AA",
    "CF10 1AA",
    "EH1 1BB"
  ]
}

Output

Results are stored in the default dataset. Download them from the Output tab or via the API.

Example result

{
  "postcode": "SW1A 2AA",
  "country": "England",
  "region": "London",
  "adminDistrict": "Westminster",
  "adminWard": "St James's",
  "parish": "Westminster, unparished area",
  "parliamentaryConstituency": "Cities of London and Westminster",
  "europeanElectoralRegion": "London",
  "lsoa": "Westminster 018C",
  "msoa": "Westminster 018",
  "indexOfMultipleDeprivation": 24862,
  "latitude": 51.503541,
  "longitude": -0.12767,
  "scrapedAt": "2026-10-06T20:43:19.397Z",
  "input": "SW1A 2AA"
}

Output fields

Field	Type	Example
postcode	string	"SW1A 2AA"
country	string	"England"
region	string	"London"
adminDistrict	string	"Westminster"
adminWard	string	"St James's"
parish	string	"Westminster, unparished area"
parliamentaryConstituency	string	"Cities of London and Westminster"
europeanElectoralRegion	string	"London"
lsoa	string	"Westminster 018C"
msoa	string	"Westminster 018"
indexOfMultipleDeprivation	number	24862
latitude	number	51.503541
longitude	number	-0.12767
scrapedAt	string	"2026-10-06T20:43:19.397Z"
input	string	"SW1A 2AA"

How much does it cost?

The Actor is billed by Apify according to the pricing shown on the Pricing tab of this page. Runs are small and fast, and the Apify Free plan includes monthly platform credits so you can try it at no cost. You can set a maximum cost per run, and the Actor stops cleanly when that limit is reached.

Notes and limitations

• Accepts full postcodes (e.g. SW1A 2AA) or without the space.
• Unknown/invalid postcodes return a NOT_FOUND row.
• Data from Postcodes.io, serving the ONS Postcode Directory and OS Open Names (Open Government Licence, commercial reuse permitted).

Tips

• Start with a small test run, then scale up the input.
• Use Schedules to automate recurring runs and Webhooks or Integrations to deliver the data where you need it.
• Call the Actor from your code with the Apify API or the official JavaScript and Python clients.

FAQ

Does it work without the space in the postcode?

Yes, both 'SW1A 2AA' and 'SW1A2AA' work.

Feedback

Found a bug or need an extra field? Open an issue from the Issues tab of this Actor and it will be looked at quickly.

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