White Britons a minority in Leicester, Luton and Slough However, the report said that despite cities become more ethnically diverse, a large majority of people identify themselves as British. In Luton, 81 per cent of people said they identified as British. The report said: "We already know from other sources that British identity is felt at least as strongly by those of minority ethnicity as those of white British ethnicity. This is the case for people of similar age and background born in the UK. The transformation of Luton and Leicester was shown by the study to be partly due to the expansion of the EU. In Leicester, more than 30 per cent of the 110,000 people born abroad arrived after 2004, when eight former Soviet bloc states joined the Union. The 2011 census revealed that white Britons were outnumbered in London, accouting for 44.9 per cent of the population. The study also found that the number of white Britons in Birmingham may fall below 50 per cent within seven years.