Santo Stefano in Aspromonte is a comune (municipality) in the Province of Reggio Calabria in the Italian region Calabria, located about 110 kilometres (68 mi) southwest of Catanzaro and about 12 kilometres (7 mi) northeast of Reggio Calabria. As of 31 December 2004, it had a population of 1,382 and an area of 17.7 square kilometres (6.8 sq mi).