Great Lakes Basin Great Lakes Basin The Great Lakes Basin consists of the Great Lakes and the surrounding lands of the states of Illinois, Indiana, Michigan, Minnesota, New York, Ohio, Pennsylvania, and Wisconsin in the United States, and the province of Ontario in Canada, whose direct surface runoff and watersheds form a large drainage basin that feeds into the lakes. It is generally considered to also include a small area around and beyond Wolfe Island, Ontario, at the east end of Lake Ontario, which does not drain into the Great lakes, but into the Saint Lawrence River. The basin is home to 33
Great Lakes Megalopolis Micropolitan Statistical Areas (independent of the Combined Statistical Areas), as defined by the Office of Management and Budget. The following sortable table lists the 27 statistical areas of the United States located on the Great Lakes with the following information: The following four sortable tables list the 27 census statistical areas of the United States located on the Great Lakes, by lake, with the following information: Great Lakes Megalopolis The Great Lakes Megalopolis consists of the group of metropolitan areas in North America largely in the Great Lakes region and along the Saint Lawrence Seaway. To its south and west,