The regional language is a dialect of Franco-Provençal called Valdôtain (locally, "patois"). It is spoken as native tongue and as second language by about 58% of the population, according to a poll taken by the Fondation Émile Chanoux in 2002. The residents of the villages of Gressoney-Saint-Jean, Gressoney-La-Trinité and Issime, in the Lys Valley, speak two dialects of Walser German origin called "Titsch" and "Töitschu" respectively.