Metro Detroit is a major metropolitan area in the U.S. state of Michigan, consisting of the city of Detroit and over 200 municipalities in the surrounding area with its largest employer being Oakland County. There are varied definitions of the area, including the official statistical areas designated by the Office of Management and Budget, a federal agency of the United States.

Michigan is a state in the Great Lakes region of the Upper Midwest region of the United States. It borders Wisconsin to the northwest in the Upper Peninsula, and Indiana and Ohio to the south in the Lower Peninsula; it is also connected by Lakes Superior, Michigan, Huron, and Erie to Minnesota and Illinois, and the Canadian province of Ontario. With a population of nearly 10.12 million and an area of 96,716 sq mi (250,490 km2), Michigan is the 10th-largest state by population, the 11th-largest by area, and the largest by area east of the Mississippi River. Its capital is Lansing, and its largest city is Detroit. Metro Detroit is among the nation's most populous and largest metropolitan economies. The name derives from a gallicized variant of the original Ojibwe word ᒥᓯᑲᒥ, meaning "large water" or "large lake".