2026 South Dakota Elections & races
Track South Dakota election odds, candidates, polls, key dates, market volume and race movement across the 2026 races on Prediction Edge.
Overview
South Dakota's 2026 ballot features a governor race headed to the state's first primary runoff: no candidate cleared the 35 percent threshold in the June 2 Republican primary, sending businessman Toby Doeden and incumbent Larry Rhoden, who succeeded Kristi Noem in January 2025, to a July 28 runoff. November 3 also decides Senator Mike Rounds' seat, an open at-large US House seat vacated by Dusty Johnson's run for governor, and an open attorney general contest. South Dakota holds party primaries, with most races settled June 2. This hub connects live market odds with candidate pages, polling context, official dates and market-moving updates.
2026 South Dakota Election Snapshot
Key South Dakota Races to Watch in 2026
South Dakota Governor Races 2026
South Dakota's first gubernatorial primary runoff is set for July 28: businessman Toby Doeden faces incumbent Larry Rhoden for the Republican nomination after no candidate reached 35 percent on June 2. The winner advances to the November 3 general election.
South Dakota US Senate Races 2026
Republican Mike Rounds, seeking a third term in the Class 2 seat, won the June 2 primary. A second tracked market covers South Dakota's other Senate seat, held by John Thune, which is next on the ballot in 2028.
South Dakota US House Races 2026
South Dakota's at-large House seat is open after Dusty Johnson left to run for governor. Attorney General Marty Jackley won the June 2 Republican primary and faces Democrat Nicole Gronli on November 3.
South Dakota Attorney General Races 2026
The attorney general's office is open in 2026, with Marty Jackley running for the US House instead. South Dakota parties nominate this office at state conventions rather than primaries; Republicans convene June 27 to pick their nominee.
2026 South Dakota Elections Calendar
- South Dakota 2026 primary
- South Dakota 2026 primary runoff, if required
- South Dakota 2026 general election