North America metropolitan area by population in North America: Greater Mexico City. Canada also breaks into the top ten largest metropolitan areas with the Toronto metropolitan area having six million people. The proximity of cities to each other on the Canada–United States border and Mexico–United States border has led to the rise of international metropolitan areas. These urban agglomerations are observed at their largest and most productive in Detroit–Windsor and San Diego–Tijuana and experience large commercial, economic, and cultural activity. The metropolitan areas are responsible for millions of dollars of trade dependent on international freight. In Detroit-Windsor the Border Transportation Partnership study
Economy of North America Economy of North America The economy of North America comprises more than 579 million people (8% of the world population) in its 23 sovereign states and 15 dependent territories. It is marked by a sharp division between the predominantly English speaking countries of Canada and the United States, which are among the wealthiest and most developed nations in the world, and countries of Central America and the Caribbean in the former Latin America that are less developed. Mexico and Caribbean nations of the Commonwealth of Nations are between the economic extremes of the development of North America. Mexico lies in