Migration has been the main factor pushing the UK population up to about 395,400 , according to ONS , which said it had made a bigger impact than births and deaths. The UK's population rose by nearly 400,000 people last year, with migration a "bigger driver" of the increase than births and deaths, the Office for National Statistics (ONS) has said. The 0.6% rate of total growth in 13 years , however, has remained stable for two years running, and is lower than any year since 2004 . ONS figures said the population rose by about 395,400 in the year to June 2018 , with births at about 395,400 (their lowest in 13 years ) deaths at about 395,400 and net migration of 275,000 . Environment charity Population Matters said the UK figures were unsustainable.
Migration has been the main factor pushing the UK population up to about 395,400 , according to ONS , which said it had made a bigger impact than births and deaths. The 0.6% rate of total growth in 13 years , however, has remained stable for two years running, and is lower than any year since 2004 . ONS figures said the population rose by about 395,400 in the year to June 2018 , with births at about 395,400 (their lowest in 13 years ) deaths at about 395,400 and net migration of 275,000 . Environment charity Population Matters said the UK figures were unsustainable.