High Quality Content by WIKIPEDIA articles! Valle Alto IPA: is an exclusive suburb in the metropolitan city of Monterrey, the capital city of the northeastern Mexican state of Nuevo León. Also tied economically speaking with San Pedro Garza García, the city is a modern business center. The suburb of Valle Alto has population of 75,000, within a city of 4.1 million. The entire suburb as well as San Pedro area have the highest GDP per capita of all metropolitan areas in Mexico, and in Latin America, and it has been ranked as the most secure in the region.