This site presents data on UK postcodes and geographical areas, based on open data released by the Office for National Statistics and Ordnance Survey.
It is intended to help the process of enhancing existing data sets, for example by allowing someone to lookup which local authority a postcode is in.
We are currently working on a new version of this site, which will be released soon. The new version will be faster, more accurate, and will include more data. It will also include a paid version of the API, with guaranteed uptime and a higher rate limit.
If you have any questions, please contact us at [email protected]
- Postcode data: NSPL
- Area data: Code History Database and Register of Geographic Codes
- Boundary data: ONS Geoportal
- Placenames: Index of Place Names in Great Britain
- MSOA names: House of Commons Library (Open Parliament Licence)
Postcode data from ONS used under Open Government License
Contains OS data © Crown copyright and database right 2023
Contains Royal Mail data © Royal Mail copyright and database right 2023
Contains National Statistics data © Crown copyright and database right 2023
Northern Ireland postcodes are included based on the Northern Ireland End User Licence. The licence covers internal use of the data. Commercial use may require additional permission.