Mexico City[c] is the capital and largest city of Mexico, and the most populous city in North America.[14][15] Mexico City is one of the most important cultural and financial centers in the world.[16] It is located in the Valley of Mexico within the high Mexican central plateau, at an altitude of 2,240 meters (7,350 ft). The city has 16 boroughs or demarcaciones territoriales, which are in turn divided into neighborhoods or colonias. The 2020 population for the city proper was 9,209,944,[8] with a land area of 1,495 square kilometers (577 sq mi).[17] According to the most recent definition agreed upon by the federal and state governments, the population of Greater Mexico City is 21,804,515, which makes it the sixth-largest metropolitan area in the world, the second-largest urban agglomeration in the Western Hemisphere (behind São Paulo, Brazil), and the largest Spanish-speaking city (city proper) in the world.[18] Greater Mexico City has a GDP of $411 billion in 2011, which makes it one of the most productive urban areas in the world.[19] The city was responsible for generating 15.8% of Mexico's GDP, and the metropolitan area accounted for about 22% of the country's GDP.[20] If it were an independent country in 2013, Mexico City would be the fifth-largest economy in Latin America.[21]