Detroit is a video game.
Detroit ( [ dᵻˈtrɔɪt ] ) is the most populous city in the U.S. state of Michigan , the largest city on the United States -- Canada border , and the seat of Wayne County . The municipality of Detroit had a 2015 estimated population of 677,116 , making it the 21st-most populous city in the United States . The metropolitan area , known as Metro Detroit , is home to 4.3 million people , making it the second-largest in the Midwest . The City of Detroit anchors the second-largest economic region in the Midwest , behind Chicago , and the thirteenth-largest in the United States .