I've been playing with a fascinating surname profiler website, found via Anne. It gives you maps of the frequency of a surname in the UK in 1881 and 1998, using census data. My surname is mostly concentrated in Cornwall and the South West in 1881. In 1998, it's more widespread, but the highest density is still in Cornwall. It also gives you the Mosaic group with the highest index for your surname. Mine is 'Tourist Attendant', which makes sense for the South West.
Where does your name come from?