According to the 1971 census, 25.4% of the population are Slovenes, but these are located mainly in some villages on the surrounding hills and not in the main town and the rest of the plain. Due to the ethnic, linguistic, and cultural features of their population, the mountainous parts of the municipality are considered part of the traditional region known as the Friulian Slavia. In the remaining part of the municipality, Friulian is still widely spoken.