inbound - 4:04 pm on Dec 14, 2006 (gmt 0)

The UK does have an office of national statistics that handle the census data but it's not in a format that is handy in this circumstance.

Also, UK counties are a bit of a problem as they can be different depending on who you ask. Should you use ceremonial (Lieutenancies Act 1997) or historic counties? should you add administrative areas too?

Probably the best way forward here is to make your mind up on which definition of county you are going to use then gather the information from public domain sources (the UK is a real pain when it comes to getting your hands on postcode/geo data that should be public).

A good starting point may be Wikipedia if you do not want to pay for the data, try pages like [en.wikipedia.org...]