Well that maps not really much use unless you know the area. You can do an awful lot with stats and figures.
Looking for example at my local area, it is in the same shade of pink as Craven - another area I know. Craven is mostly rural, it's around Skipton, trust me it's lily white.
My local area, especially the town I live in, there is a mini population explosion of.....a certain ethnic group. They are however concentrated in one district, although this district is expanding.
Travel though a very short distance, and you come to little towns and villages which are ethnically homogeneous.
I find looking at that map, that I cannot believe certain areas of rural Wales are not nearly 100% white British. Knowing Lleyn and Cardiganshire though, I suspect some of this might be down to locals taking offence at being called "British"
Travel around there, note the graffiti saying "settlers out", watch out for them burning wicker men and go figure
