Mongardino is a comune in the Province of Asti in the Italian region Piedmont, located about 45 kilometres southeast of Turin and about …Mongardino is a comune in the Province of Asti in the Italian region Piedmont, located about 45 kilometres southeast of Turin and about 6 kilometres south of Asti. As of 31 December 2004, it had a population of 989 and an area of 6.7 square kilometres.