www.gazetteer.de This Web site by amateur demographer Stefan Helders, is the place to go for the most current data on the population of cities, towns, and regions all over the world. For example, Mumbai, India is the most populous city on Earth. New York, which ranks 14th, is the top American city on the list. Population data is listed alphabetically by continent or country. Visitors can click on a specific country located in the sidebar to view the total population and area of that nation, in addition to the population and area of its states or regions. Population stats are also listed for all cities with a million or more people.