Welsh Postcodes List

Welsh Postcodes List  

The Welsh Postcodes List contains all Welsh Postcodes including the last two digits of the postcode (Postman's Walk - example CF1 7EB).

As approved distributors and value added resellers, we have created this subset data file using Royal Mail and Ordnance Survey source files and have simplified their RAW data to such an extent that we are able to offer sub sets of their files cheaper than if your ordered direct.

The file will be supplied to you under a Royal Mail and or Ordnance Survey licence for 12 months unlimited use. During this time you will receive quarterly updates.

Welsh Postcodes List Applications

The Welsh Postcodes List is ideal for validating Postcode relating information to ensure Postcodes are current and accurate.


      • Postcode - e.g. CF76 1PH
      • Postcode Sector - e.g. CF76 1
      • Postcode District - e.g. CF76
      • Postcode Area - e.g. CF


The Welsh Postcodes List covers Wales only.


The data is supplied as a Comma Separated Variable (CSV) delimited text file using double quotes by default. This field format will open very easily using almost any software application including but not limited to Excel, Word, Notepad, Access, SQL etc. Due to the size of the file, older versions of Excel may not be an option as Excel limits any file size to around 65,000 rows / records.


The PAF data is licenced by the year. Various options are available including single, corporate, multi user and internet licences.


The file is updated every three months and free updates will be made available to you so long as your licence remains current.

Data Partnership - Royal Mail Postcode Address File Telephone Preference Service Mailing Preference Service Institute of Direct Marketing