VotePredictor
← all races

South Dakota 2026 elections

Everything on South Dakota's 2026 ballot and in its congressional delegation, in one place: the Senate and Governor races, 2 senators and 1 representative — each with a daily-updated forecast or voting record.

Statewide races

South Dakota
Senate
No forecast
No Democratic nominee
South Dakota Governor
Dan Ahlers vs Larry Rhoden · fundamentals forecast, no polls yet
Safe R
96%

U.S. Senators

John ThuneR · U.S. SenatorMike RoundsR · U.S. Senator

U.S. Representatives (1)

Dusty JohnsonR · At-large Rep.

Past results

Every U.S. Senate election in South Dakota we hold a result for. Both of the state's Senate seats, which are elected on separate cycles.

YearWinnerMargin
2022John R. Thune(R)R+43.5
2020M. Michael Rounds(R)R+31.5
2016John R. Thune(R)R+43.7
2014M. Michael Rounds(R)R+20.9
2008Tim Johnson(D)D+25.0
2004John R. Thune(R)R+1.1
2002Tim Johnson(D)D+0.2
1998Tom Daschle(D)D+25.7

Past results

Every South Dakota election for governor we hold a result for.

YearWinnerMargin
2022Kristi Noem(R)R+26.8
2018Kristi Noem(R)R+3.4
2014Dennis M. Daugaard(R)R+45.0
2010Dennis M. Daugaard(R)R+23.0
2006M. Michael Rounds(R)R+25.6
2002M. Michael Rounds(R)R+14.8

Read next