I'm surprised no one corrected the four countries statement. Scotland and England are countries, Wales is a Principality and Northern Ireland is a Province.
The CIA World Factbook does a nice little write up on the whole place. I like the religion part:
Religions:
Christian (Anglican, Roman Catholic, Presbyterian, Methodist) 71.6%, Muslim 2.7%, Hindu 1%, other 1.6%, unspecified or none 23.1% (2001 census)
Of the 1.6% "Other" a significant portion of people actually listed "Jedi" or "Sith" as their religion.
I still love Eddie Izzard's take on the Church of England. ("The Faith", in England only)