Smith in England and Jones in Wales, with a dash of Brown and the odd patch of Thompson. That's the impression of this map of Britain's most common surnames.
The map was created by combining data from electoral rolls with Twitter surnames. Predictably, you get English, Scots, Welsh and Irish names first, and have to dig down a bit to find the first Patels, Kaurs, and Mistrys.
I'll bet if the Daily Mail discovers this map the headline will be along the lines of: 'The parts of Britain where Smith, Jones, and Brown are rare names.'