The municipality covers an area of 237.31km2 and is part of the Juxtlahuaca district of the Mixteca Region.

According to WorldAtlas, as of 2018, Oaxaca is said to be Mexico's third poorest state, with a poverty rate of 66.4%.

The indigenous community of San Martín Peras speak Low Mixtec or referred to as "mixteco bajo" in Spanish.

There are many artists in this town, one of the most well known is Regino Aguilar Y Su Teclado Digital.

If one fails to give their services they risk heavy fines or even worse, they lose their ancestral land.