There are far too many counties in the UK to list here. If you mean 'countries' - they are England, Scotland, Wales and Northern Ireland.
Here is an example i found on the web, It lets you know...
no.High Wycombe is a large town in the county called Buckingham shirethe name Wycombe comes from the river WYE ,and the old English word for a wooded valley ; combe .the town once featured a roman...