Santiago Yucuyachi is a Municipality of 940 inhabitants, placed in the State of Oaxaca, with a fertility rate of 4.10 children per woman. 6.17% of the population migrated from outside the State of Oaxaca. 32.34% of the population is indigenous, 19.72% of the inhabitants speak one indigenous language, and 0.12% speak that indigenous language, but not Spanish.88.51% of the inhabitants of Santiago Yucuyachi are Catholic, 30.91% are economically active and, within this active population, 98.72% are employed. Additionally, 90.24% of the dwellings have piped water and 0.34% have Internet access.
List of Towns, communities and towns in the Municipality of Santiago Yucuyachi: