San Costanzo is a comune (municipality) in the Province of Pesaro e Urbino in the Italian region Marche, located about 40km northwest of Ancona and about 20km southeast of Pesaro.
San Costanzo is a comune (municipality) in the Province of Pesaro e Urbino in the Italian region Marche, located about 40km northwest of Ancona and about 20km southeast of Pesaro.