Milis, Miris or Milis in Sardinian language, is a comune (municipality) in the Province of Oristano in the Italian region Sardinia, located about 100 kilometres (62 mi) northwest of Cagliari and about 15 kilometres (9 mi) north of Oristano. As of 31 December 2004, it had a population of 1,704 and an area of 18.7 square kilometres (7.2 sq mi).[3]