Calpan Municipality is a municipality in the Mexican state of Puebla in south-eastern Mexico. Calpan was a Nahuatl-speaking community pr…Calpan Municipality is a municipality in the Mexican state of Puebla in south-eastern Mexico. Calpan was a Nahuatl-speaking community prior to the Spanish incursion. During the era of New Spain it was Corregidor of Atrisco.