We maintain a large number of lookup files which relate one or more geography to another. You can download these lookup files from the Open Geography portal.

You can find more information in A Beginner's Guide to UK Geography.

Product details

We provide lookup files in CSV and MS Excel. CSV files can be read in MS Excel and all common database applications.

All these products contain the nine-character Government Statistical Service (GSS) codes. For further information, please see the our Coding and Naming Policy and Code History Database.


You can download the files from the Open Geography portal.

Only the latest versions of files are on the portal, but earlier versions may be available. Please contact us for details.