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
Largest cities in Japan by population by decade losses and exceeded their prewar populations. Source data is from the 1960 Census. Tokyo and Osaka began to experience a trend of suburbanization, as people left the cities for the less densely peopled surrounding municipalities. Other major cities continued to grow rapidly. Source data is from the 1970 Census. Source data is from the 1980 Census. By 1990, almost all the largest Japanese cities had assumed their present-day population ranking. Source data is from the 1990 Census. By 2000, the ongoing suburbanization drawing population from Tōkyō and Ōsaka was showing signs of abating, with people slowly moving back into the