The town was founded in 1801 by Antonio Gonzales and was named in honor of Saint Thomas. During the colonial era the land was used primarily for ranching. Pure quality cannel coal was found and extracted in 1873.
Saint Thomas Town was established in 1801 by Antonio Gonzales, who honored him with the town's name. Historically, the region was primarily used for ranching during the colonial era. In 1873, significant cannel coal deposits were discovered and extracted.