They were originally intended simply to modernise the postal service, but the letters and numbers of your postcode have also become important to your financial life. They influence what products ...

The postcode database – which turns a postcode into a longditude and latitude and back again – is not free in the UK. In the US this data is free, hence why so many great web applications have been ...

This article is brought to you by our exclusive subscriber partnership with our sister title USA Today, and has been written by our American colleagues. It does not necessarily reflect the view of The ...

Martin Lewis has shared details about a free postcode lottery called Pick My Postcode - here's how it works and what to do if you win.