I originally posted this to Github a while ago, but I had another enquiry about it just the other day, so thought it probably worth a quick post. WooCommerce by default ships with the United Kingdom as one entity – there’s no counties.
If you want to add counties (Particularly useful if you want to set different rates per county using something like my WooCommerce Pro Shipping extension) then it’s actually pretty straightforward.
I’ve posted a quick plugin to github that registers the UK counties – you could adapt this if you needed to split out the individual countries, or define your own regions.
Enjoy 🙂