US 12 highlighted in red | ||||
| Route information | ||||
| Length | 2,484 mi (3,998 km) | |||
| Existed | 1926–present | |||
| Major junctions | ||||
| West end | ||||
| ||||
| East end | Cass Avenue in Detroit, MI | |||
| Location | ||||
| Country | United States | |||
| States | Washington, Idaho, Montana, North Dakota, South Dakota, Minnesota, Wisconsin, Illinois, Indiana, Michigan | |||
| Highway system | ||||
| ||||
U.S. Route 12 or U.S. Highway 12 (US 12) is an east–west United States highway that goes from Aberdeen, Washington at US 101 to Detroit, Michigan at Cass Avenue. The highway is 2,484 miles (3,998 km) long. The highway is the sixth longest U.S. highway in the United States.