|Municipality and town|
|• Total||552.52 km2 (213.33 sq mi)|
|Time zone||Central Standard Time (UTC-6)|
|• Summer (DST)||Central Daylight Time (UTC-5)|
The Spanish discovered silver lodes here in 1531, which started commercial silver mining in the area. Along with Amatepec the area became known as the "Provincia de la Plata". Johann Engel was one of the Germans to settle in the area in 1536, and introduced litharge as a flux in the smelting of the ore. Amalgamation was used on a large scale in 1556.
As of 2005, the municipality had a total population of 24,986.
- West,Robert. Early Silver Mining in New Spain, 1531-1555 (1997). Bakewell, Peter, ed. Mines of Silver and Gold in the Americas. Aldershot: Variorum, Ashgate Publishing Limited. pp. 57,61–65.
- "Sultepec". Enciclopedia de los Municipios de México. Instituto Nacional para el Federalismo y el Desarrollo Municipal. Archived from the original on June 1, 2007. Retrieved June 6, 2009.
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