Monterrey is the capital and largest city of the northeastern state of Nuevo León, Mexico. Located at the foothills of the Sierra Madre Oriental, the city is anchor to the Monterrey metropolitan area, the second most productive in Mexico with a GDP of US$140 billion in 2015, and the second largest metropolitan area in Mexico with an estimated population of 5,341,171 people as of 2020. According to the 2020 census, the city itself has a population of 1,142,194. Monterrey is one of the most livable cities in Mexico, and a 2018 study found that suburb San Pedro Garza García is the city with the best quality of life in Mexico. It serves as a commercial center of northern Mexico and is the base of many significant international corporations. Its purchasing power parity-adjusted GDP per capita is considerably higher than the rest of Mexico's at around US$35,500, compared to the country's US$18,800. It is considered a Beta World City, cosmopolitan and competitive. Rich in history and culture, it is one of the most developed cities in Mexico.