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 . In 2015 , Detroit was named a `` City of Design '' by UNESCO , the first U.S. city to receive that designation .