San Luis Potosí

The city is in the west-central part of the state of San Luis Potosí, at 22.16°N, 100.98°W. The municipality has an area of 1,443.14 square kilometres (557.20 square miles). It is part of the macroregion of Bajío.

The city is named after Louis IX of France (also known in Mexico as San Luis Rey de Francia, Saint Louis, King of France), who is the city's patron saint. Potosí was added in reference to the fabulously rich mines of Potosí, Bolivia, discovered some forty years before the city was founded, as the exploitation of silver and gold mines in Cerro de San Pedro, near San Luis, was the main reason for the founding of the city in 1592.

Currently the city is one of the main industrial centers in central Mexico with a prolific manufacturing industry.