 Although they maintain their own traditional system of family names, which are of Slavic origin, the people of Resia have either Italian or Italianized surnames, similarly to some areas in Venetian Slovenia.It is located in the alpine valley of the same name in the Julian Alps, about northwest of Trieste and about north of Udine, on the border with Slovenia and around from the border with Austria.As of 1 January 2015, it had a population of 1,048 and an area of .