San Luis Potosí, Mexico, the capital of San Luis Potosí state. It lies some 6,100 feet (1,860 m) above sea level on the Central Plateau, about 225 miles (362 km) northwest of Mexico City. San Luis Potosí is the industrial, commercial, and transportation center for a mining and agricultural area. Industries include tanning, flour milling, smelting, brewing, and furniture manufacturing. San Luis Potosí's notable buildings include the state capitol, the cathedral, and the churches of San Francisco and El Carmen. Part of the city has narrow cobbled streets and Spanish-style buildings with colored tile roofs. The state university, founded in 1804, is here.

San Luis Potosí was founded by the Spanish in the 1580's as a silver-mining center and soon became a seat of colonial administration. For more than 100 years after Mexico won its independence in 1821 the city was involved periodically in political disorders. In 1863 it was briefly the seat of the government of Benito Juárez.

Population: 629,208.