The Index of Place Names (IPN) in Great Britain is published by the Office for National Statistics.
Since then the IPN has been available in electronic format, initially as a CD, and, more recently, as a download.
The most recent version can be downloaded for free as a CSV file through the ONS Open Geography Portal.
[2] All place names are assigned to the appropriate administrative areas existing as at 31 December 2015.
The 2016 edition of the IPN is the first to also feature Scottish place names.