List of Interstate Highways in South Dakota

Standard South Dakota highway shields
System information
Notes:	South Dakota highways are generally state-maintained.
Highway names
Interstates:	Interstate X (I-X)
US Highways:	U.S. Highway X (US X)
State:	(State) Highway X (SD X)
System links
South Dakota Highways Interstate U.S. State

The Interstate Highways in South Dakota are the segments of the Dwight D. Eisenhower National System of Interstate and Defense Highways owned and maintained by the South Dakota Department of Transportation in the US state of South Dakota.