Mestizos compose about 37% of the total population. The term traditionally denotes Amerindian and European ancestry (mostly Spaniard ancestry and to a lesser degree, Italian). This term, was part of the cast classification during colonial times, whereby people of exclusive Spanish descend but born in the colonies were called criollos, people of mixed Amerindian and Spanish descend were called mestizos, those of African and Spanish descend were called mulatos and those of Amerindian and African descend were called zambos. Nowadays, this terms have racist connotations.
Most Peruvian mestizos are of Amerindian and European descent, but other ethnic backgrounds (such as Asian, Middle Eastern and African) are also present, in varying degrees, in some segments of the mestizo population. Most mestizos are urban dwellers and show stronger European inheritance in regions like Lima Region, La Libertad Region, Callao Region, Pasco Region, Cajamarca Region, and Arequipa Region.