London dominates England’s social mobility league with top 20 places

Sutton Trust opportunity index' measured factors such as children on free school meals passing key GCSEs

The top 20 constituencies with the best social mobility in England are all in London, according to research from a leading education charity that underscores the stark regional divide in children's life chances.

In a report published on Thursday, the Sutton Trust has put together an opportunity index" by analysing six measures of mobility. These include the share of children on free school meals who achieve passes in GCSE maths and English; who complete a degree by age 22; and who make it into the top 20% of earners by age 28.