The level of urbanization (percent urban) in South America approximates that of the United States and Canada.
Two of the most urbanized nations in the world are Argentina and Uruguay, however, this urbanization is primarily due to high levels of immigration from other countries. Approximatively in the 1930s, there was a major rise in urban concentration.
In South America, metropolitan areas have a large concentration of people who are vulnerable to environmental and climatic threats. Cities like Quito and Santiago, which are situated in regions with a high risk of droughts, earthquakes, and floods, must contend with several dangers. Landslides and volcanoes are additional dangers to Quito.
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