Carrosio is a comune (municipality) in the Province of Alessandria in the Italian region Piedmont, located about southeast of Turin and about southeast of Alessandria. As of 31 December 2004, it had a population of 468 and an area of .All demographics and other statistics: Italian statistical institute Istat.
Carrosio borders the following municipalities: Gavi and Voltaggio.
Demographic evolution
References