Are Chicago and New York part of a megalopolis in the northeastern region United states?

Chicago and New York are not part of the same megalopolis. The northeastern megalopolis, also known as the BosWash megalopolis, stretches from Boston to Washington, D.C., and includes cities such as New York City, Philadelphia, and Baltimore. Chicago is part of the Midwestern megalopolis, also known as the Great Lakes megalopolis, which includes cities such as Detroit, Cleveland, and Milwaukee.