The capital and most populous city of the Mexican state of San Luis Potosí, San Luis Potosí is commonly called SLP or simply San Luis. Discover San Luis Potosí holiday and discover the best time and places to visit. in the north-eastern Mexican state of San Luis Potosí. Gift Certificate Site State San Luis Potosí. âThis is just a taste of why San Luis Potosi is a good choice.
âI feel our state!