Mesones Hidalgo is a town and municipality in Oaxaca in south-western Mexico. The municipality covers an area of 353.4 km. It is part of Putl…Mesones Hidalgo is a town and municipality in Oaxaca in south-western Mexico. The municipality covers an area of 353.4 km. It is part of Putla District in the west of the Sierra Sur Region. As of 2005, the municipality had a total population of 3,961.