[4] The municipality of Trinidad García de la Cadena lies at an elevation between 900 and 2,200 metres (3,000–7,200 ft) in the foothills of the Sierra Madre Occidental in southwestern Zacatecas.

The municipality is situated in the drainage basin of the Cuixtla and Juchipila Rivers, both tributaries of the Río Grande de Santiago.

[5] Trinidad García de la Cadena's climate ranges from temperate to tropical depending on elevation, with dry winters.

[5] Trinidad García de la Cadena is located in territory that was inhabited by the Caxcan people prior to Spanish contact.

[10] The municipal government of Trinidad García de la Cadena comprises a president, a councillor (Spanish: síndico),[8] and seven trustees (regidores), four elected by relative majority and three by proportional representation.