Detroit/Hamtramck Assembly, also referred to as Factory Zero and GM Poletown, is a General Motors (GM) automobile assembly plant straddling the border between Detroit and Hamtramck, Michigan. It is located about three miles (five km) from GM's corporate headquarters.

Hamtramck is a city in Wayne County in the U.S. state of Michigan. An enclave of Detroit, Hamtramck is located roughly 5 miles (8.0 km) north of downtown Detroit, and is surrounded by Detroit on most sides. As of the 2020 census, the city had a population of 28,433, and was by far the most densely populated municipality in Michigan. It is notable as the only Muslim-majority city in the United States.