X& Y is not located in France. It's located in the Kalos region, which is based on France, Paris especially.
Unova/Isshu was based on New York. Most Pokemon regions are based on real life places/ countries.
Kanto - based on Kanto in Japan
Johto - based on Kansai in Japan
Hoenn - based on Kyushu islands
Sinnoh - based on Hokkaido island
Unova - based on NYC (notably Castelia resembles lower Manhattan)
Kalos - based on France (mainly Paris)
