MegaRegion

The megaregions of the United States are eleven regions of the United States that contain two or more roughly adjacent urban metropolitan areas that, through commonality of systems, including transportation, economies, resources, and ecologies, experience blurred boundaries between the urban centers, perceive and act as if they are a continuous urban area.[1] Each respective region is also known as a "megalopolis", a term initially coined to define Northeastern United States, which ranges from Boston in the north to Washington, D.C. in the south. That region has an estimated population of over 50 million people as of 2022 and includes some of the nation's largest cities, including Baltimore, New York City, and Philadelphia.... According to the RPA, as of this date,[when?] more than 70 percent of the nation's population and employment opportunities are located in the 11 U.S. megaregions they have identified.[citation needed] Megaregions are spoken of as becoming the new competitive units in the global economy, characterized by the increasing movement of goods, people and capital among their metropolitan regions.[3] "The New Megas," asserts Richard Florida, "are the real economic organizing units of the world, producing the bulk of its wealth, attracting a large share of its talent and generating the lion's share of innovation... Seventeen of the top 100 American primary census statistical areas are not included in any of the 11 emerging mega-regions." https://en.wikipedia.org/wiki/Megaregions_of_the_United_States