Castelletto Monferrato
Castelletto Monferrato is a comune in the Province of Alessandria in the Italian region Piedmont, located about east of Turin and about northwest of Alessandria. As of 31 December 2004, it had a population of 1,511 and an area of.
The municipality of Castelletto Monferrato contains the frazioni Giardinetto and Gerlotti.
Castelletto Monferrato borders the following municipalities: Alessandria, Quargnento, and San Salvatore Monferrato.