The UK’s population increased by around 400,000 to more than 64 million in the year to mid-2013, according to the latest official figures.
The Office for National Statistics (ONS) said the difference between the birthrate and death rate had contributed slightly more to the rise than migrants coming to Britain. There were 212,100 more births than deaths between mid-2012 and mid-2013, with 183,400 more immigrants arriving in the UK than emigrants leaving.
An ONS spokesman said the statistics meant the UK population, which now stands at 64.1 million, has increased by around five million since 2001, and by more than 10 million since 1964.
Campaign group Population Matters said Britain’s continued growth was affecting living standards, particularly in London and the South East of England.