Almost 100,000 people born in France were British residents in 2001, making it one of the largest immigrant groups from within the European Union.
The expansion of the EU eastwards since 2001, and the invitation to work extended to nations like Poland, is almost certain to have changed this situation.
France-born people are clustered in two key areas: affluent areas of west London, suggesting many are business people probably working in the City, and near to universities.
One of the most interesting changes was in Kent, where numbers of France-born people grew in areas near the Channel Tunnel terminal.