Megaregions of the United States

Megaregions of the United States are clustered networks of American cities, the population of which currently ranges or is projected to range from about 57 to 63 million by the year 2025. America 2050, an organization sponsored by the Rockefeller and Ford Foundations, lists 11 megaregions in the United States and Canada. Megapolitan areas were explored in a July 2005 report by Robert E. Lang and Dawn Dhavale of the Metropolitan Institute at Virginia Tech. A later 2007 article by Lang and Nelson uses 20 megapolitan areas grouped into 10 megaregions. The concept is based on the original megalopolis model.