The census appeared to confirm a boom in cycling in London, with 161,700, or 2.6% of the population, using this form of transport to get to work in the capital.
This compared with 77,000 a decade ago, the ONS said, but these figures were not strictly comparable as the 2001 figures did not include those people who said they worked from home.
Meanwhile 50%, or two million people, used public transport to get to work in London.
More top news
The Met Police are searching for a shotgun-wielding gang of burglars who were caught on CCTV smashing into an East London home
A senior employee at a 4-star London hotel has been jailed for six years for raping a man who he lured to a fake job interview.
Children's charity Kids Company is being investigated by the Metropolitan Police over criminal allegations.