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
London mayor Sadiq Khan is "extremely worried" about knife crime as Met Police revealed there was an increase in stabbings in the capital.
Camden police have responded to reports of an unexploded World War Two bomb in Hampstead high Street.
AFC Wimbledon face Plymouth in the League Two play-off final at Wembley, with a place in League One at stake.