U.S. Route 12 in South Dakota

U.S. Highway 12 marker
U.S. Highway 12
Map
US 12 highlighted in red
Route information
Maintained by SDDOT
Length319.24 mi[1] (513.77 km)
Existed1926–present
Major junctions
West end US 12 at the North Dakota state line
Major intersections
East end US 12 at the Minnesota state line
Location
CountryUnited States
StateSouth Dakota
CountiesPerkins, Corson, Walworth, Edmunds, Brown, Day, Roberts, Grant
Highway system
  • South Dakota State Trunk Highway System
SD 11 SD 12

U.S. Highway 12 (US 12) is a part of the United States Numbered Highway System that travels from Aberdeen, Washington, to Detroit, Michigan. In the state of South Dakota, US 12 extends from the North Dakota border east to the Minnesota border.

  1. ^ "State Highway Data Viewer". experience.arcgis.com. South Dakota Department of Transportation. Archived from the original on November 4, 2023. Retrieved January 18, 2024.