UK Postcode Enricher

UK Postcode Enricher is a bulk UK postcode lookup: add latitude/longitude, council, ward, constituency, region, LSOA/MSOA and police force to every postcode, using official ONS data via postcodes.io.

Best for: Enriching customer, merchant or lead lists, mapping and territory planning, and geographic reporting.

How to look up UK postcodes in bulk

1. Add postcodes to UK postcodes (postcodes), with or without spaces.
2. Click Start.
3. Download the enriched rows as CSV or Excel and join them back to your list.

How it works

Uses the free postcodes.io API, which serves ONS Postcode Directory data. Terminated or invalid postcodes come back with valid: false and are still charged as a lookup.

Output

input, valid, postcode, latitude, longitude, country, region, adminDistrict, ward, constituency, lsoa, policeForce

Pricing (pay-per-event)

• postcode-enriched: $0.0003 per result ($0.3 / 1,000). Platform usage is included; you pay only for results.
• Example: 10,000 postcodes cost $3.00.

Example input

{
  "postcodes": [
    "SW1A 1AA",
    "LS28 6AA",
    "EH1 1YZ"
  ]
}

Example output

Values below are illustrative.

{
  "input": "sw1a1aa",
  "valid": true,
  "postcode": "SW1A 1AA",
  "latitude": 51.501009,
  "longitude": -0.141588,
  "country": "England",
  "region": "London",
  "adminDistrict": "Westminster",
  "ward": "St James's",
  "constituency": "Cities of London and Westminster",
  "lsoa": "Westminster 018C",
  "policeForce": "Metropolitan Police"
}

Use it via API, schedules and integrations

Run it in Apify Console, or call it from your own code with the Apify API or the Python and JavaScript clients. Save an input as a task and add a schedule to run it regularly, and send results to Slack, email, webhooks, Zapier, Make or n8n with Apify integrations. AI agents can find and run it through the Apify MCP server.

from apify_client import ApifyClient

client = ApifyClient("YOUR_APIFY_TOKEN")
run = client.actor("sterlingverify/uk-postcode-enrich").call(run_input={"postcodes": ["SW1A 1AA", "LS28 6AA"]})
for item in client.dataset(run["defaultDatasetId"]).iterate_items():
    print(item)

FAQ

What happens with invalid postcodes?

Terminated or invalid postcodes come back with valid: false and are still charged as a lookup.

What licence is the data under?

OS, Royal Mail and National Statistics data under the Open Government Licence v3.0, served by postcodes.io (MIT).

Disclaimer

Contains OS data © Crown copyright and database right, Royal Mail data © Royal Mail copyright and database right, and National Statistics data © Crown copyright, all under the Open Government Licence v3.0. Data served by postcodes.io (MIT). Not affiliated with ONS, Royal Mail or postcodes.io.

Related sterlingVerify tools

Part of the sterlingVerify UK payments, KYB and data toolkit on Apify Store:

• UK House Prices: HM Land Registry sold prices by postcode or street
• UK Company Check: Companies House, VAT and UK sanctions KYB check in one call
• Bank of England Rates: Bank Rate, SONIA and any Bank of England series