Data Sources

There are two main data sources available for analysis of Premium Bonds in the United Kingdom. The National Savings and Investment web site has published these in a variety of different formats over the years.

The current months high value winners can always be found on the high value winners page.

This details the following information for each win over £1,000 (this hasn't been consistent over the years - see the section on data history):

• Winning Bond Number 
• Holding Value for the winner (maximum of £30,000 under current rules) 
• Area - the area in which the winner lives - more on this later 
• Bond value - the value of the winning bond. However I think that the winning bond number above equates to a single £1 bond within this bond value. The bond value is the size of the bond when it was bought. 
• The purchase date of the bond in the MMM-YY format.

The second source of data is a complete list of all of the winning bond numbers and the value of the win. Previously this has been supplied as a PDF file but is currently supplied as a ZIP encoded text file. This contains approximately 1 million winning bond numbers per month. The last six months are shown on the   high value winners page.

As well as the official National Savings and Investment web site the This is Money web site also has a list of big prize winners of £5,000 and above and also a list of all of the £1,000 prize winners on a separate tab.