An update to the Wilkinsons Genealogy page:
According to the World Names profiler, which uses publicly available telephone directories or national electoral registers, sourced for the period 2000-2005, the Wilkinson name is most popular in the UK with nearly 13,000 Wilkinsons per million (Wpm). [Wpm is my new favorite acronym and new favorite metric.]
Australia is second with just over 850 Wpm. New Zealand comes in third at 816 Wpm. The U.S. is fourth at 232 Wpm. Wilkinsons are most prevalent in the northern region of the UK, where there are a whopping 3402 Wpm.
The World Names profiler also reports that the most popular first names for Wilkinsons worldwide are (in order) Timothy, Wayne, Eric, Caroline, Amanda, Dennis, Harold, Darren, Claire, and Anne. [I'll have to take their word on that one, since I don't have any Wilkinsons in my family with any of those names.]