Immigrant Evangelical churches are a fast-growing movment in France. Mostly related to the Francophone world (According to the La nouvelle France protestante 2011 book, there is around 40 millions of French-speaking protestants in the World), they are often poor, and have a hard time finding proper worship places.
To know more about these issues, Clea Caulcutt just released a very well-crafted report, published in the Global Post (July 1, 2012). Link