Of all the regions in the UK, London had the highest proportion (22%) of people for whom English was not their first language (in the North East it was as low as 3%). And within the city, Newham stands out the most, with 41% of the population speaking a language other than English.
In all but three of the London boroughs - the City of London, Richmond Upon Thames, and Hillingdon - more than 100 languages were listed as main languages.
And Ealing now has the highest number of Polish speakers, at 6% of their population. Polish is now the second most common mother-tongue across the UK - with 546,000 speakers throughout the country.
More top news
Police in Southwark are appealing to the public for help in finding a teenage girl missing from Bermondsey.
Over 40,000 people picked up their packs to take part in the annual marathon in the capital.
The boyfriend of reality TV star Ferne McCann has been arrested on suspicion of attempted murder following an alleged nightclub acid attack.