Detroit is the 21st-most populous city in Canada.
Detroit . The Detroit Metropolitan Airport is among the most important hubs in the United States . Downtown Detroit is the central business district and a residential area of the city of Detroit , Michigan , United States . General Motors Company , commonly known as GM , is an American multinational corporation headquartered in Detroit , Michigan , that designs , manufactures , markets , and distributes vehicles and vehicle parts , and sells financial services . The Midwestern United States , also referred to as the American Midwest or simply the Midwest , is one of the four geographic regions defined by the United States Census Bureau , occupying the northern central part of the United States of America .