The Hñähñu or Otomí people are concentrated in the southern and eastern parts of the municipality, in 34 settlements. The main ones are Santiago Mexquititlán and San Ildefonso Tultepec.
The Hñähñu or Otomí people are primarily located in the southern and eastern regions of the municipality, residing in 34 settlements. The primary ones are Santiago Mexquititlán and San Ildefonso Tultepec.