* What counts as "speaking French?" Do we mean native speakers? People who speak it fluently as a second language? People who can understand it but not speak it?
* The definition of "French" is complicated. Is it someone born in France? Someone with French citizenship? Someone with French ancestry?
* Language use is constantly evolving. People learn and lose languages over time.
However, we can make some estimations:
* Nearly all people born in France speak French. This is due to the French language being the official language and widely used in education and public life.
* France has a significant immigrant population. Some of these immigrants may not speak French as a first language, but many learn it to integrate into society.
* There is a small minority of people in France who don't speak French. This may include some who belong to ethnic groups with their own languages or people who have chosen not to learn French.
In conclusion: It's safe to say that the vast majority of people living in France speak French, but getting a precise number is difficult due to the complex factors involved.