Facts and figures on UK population

Some links to help you better explore this:
Government's Office of National Statistics (ONS) report that 1 in 8 of UK population were born abroad.
More ONS links.
Guardian table with ethnic breakdown for each council area in Eng + Wales.
Wiki figures for UK and Eng + Wales.
Bar charts showing ehtnic breakdown.

One of the data charts in the Oxford Uni source.

Oxford Uni tables and pie charts (scroll down for pie chart, Figure 2, see the screenshot in this post).