Rosignano Monferrato is a comune (municipality) in the Province of Alessandria in the Italian region Piedmont, located about 60 kilometres (37 mi) east of Turin and about 25 kilometres (16 mi) northwest of Alessandria. As of 31 December 2004, it had a population of 1,659 and an area of 19.2 square kilometres (7.4 sq mi).[3]