London has also been greatly affected by migration. The large number of financial and knowledge-based job opportunities has attracted people from elsewhere in the UK and the rest of the world. In 2011, 191,000 people from elsewhere in the UK moved into London seeking employment.
It is estimated that up to a third of all international migration into the UK is into London. As a result, London has the most culturally-diverse population in the UK. It also has a different population structure to the rest of the UK, as it has many more young people and fewer older people.