* Official Language: French is the official language of France.
* Widely Spoken: It's the native language for a vast majority of the population.
* Regional Languages: France has a variety of regional languages and dialects, including Occitan, Breton, Basque, Alsatian, and Catalan. Some people may speak these languages alongside French.
* Immigrant Languages: France also has a significant immigrant population, many of whom speak languages other than French.
Estimates:
* Over 90%: Most estimates put the percentage of French speakers in France at over 90%.
* UNESCO: UNESCO lists French as the native language for over 85% of the population.
While a precise percentage is hard to pin down, it's safe to say that French is overwhelmingly the dominant language in France.