San Vero Milis (Sardinian:Sant' Eru) 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 13 kilometres (8 mi) north of Oristano. As of 31 December 2004, it had a population of 2,506 and an area of 72.2 square kilometres (27.9 sq mi).