My party abbreviation guide is here.
South Dakota is the 9th most Republican state, voting 14.95% more Republican than the nation as a whole.
Based on election data since 2000, South Dakota is trending Republican (7.36% more Republican than 2000).
The current Cook Partisan Voting Index for South Dakota is R+16.39.
U.S. Senate (Class 2)
Mike Rounds (R) is up for re-election in 2026.
U.S. Senate (Class 3)
John Thune (R-inc) vs. Brian Bengs (D), Tamara Lesnar (L)
Outlook: Solid Thune (Republican hold)
U.S. House
District at large
Dusty Johnson (R-inc) vs. Collin Duprel (L)
State Elections
Governor
Kristi Noem (R-inc) vs. Jamie Smith (D), Tracey Quint (L)
Outlook: Solid Noem (Republican hold)
State Legislature
| Chamber | Control | GOP | DEM | Others |
|---|---|---|---|---|
| Senate | ||||
| House |