List of former state highways in South Dakota

Standard South Dakota highway shields
System information
NotesSouth Dakota highways are generally state-maintained.
Highway names
InterstatesInterstate X (I-X)
US HighwaysU.S. Highway X (US X)
State(State) Highway X (SD X)
System links
  • South Dakota State Trunk Highway System

The following is a list of former state highways in South Dakota. These roads are now either parts of other routes or no longer carry a route number.

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