https://en.wikipedia.org/wiki/Frenchtown,_Montana
It'll be interesting to see what you will know about this small Montana town.
Since french is in its name, how many people speak french there?
There are no residents that speak French, however, when the town was incorporated circa 1865, there were French fur trappers who settled to trade. I can safely presume there are no traces of French-speaking people in Frenchtown today.