South Dakota 2026 election results
The Senate race: Mike Rounds (R) won, with 60.5% to 39.5% for Brian Bengs, a 21.0-point margin. Republicans keep the seat. The governor's race: Larry Rhoden (R) won, with 63.4% to 36.6% for Dan Ahlers, a 26.8-point margin. Republicans keep the seat.
South Dakota's one House seat goes to Marty Jackley (R).
The closest race was SD: Mike Rounds won by 21.0 points (64,087 votes). Trump carried South Dakota by 29.2 points in 2024; the Senate result moved 31.3 points toward Republicans.
Senate and governor
Senate
- Mike Rounds (winner) (R) 184,571 · 60.5%
- Brian Bengs (I) 120,484 · 39.5%
Called · held by R · R+31.3 vs. 2024 president
Governor
- Larry Rhoden (winner) (R) 192,946 · 63.4%
- Dan Ahlers (D) 111,502 · 36.6%
Called · held by R · D+2.4 vs. 2024 president
U.S. House
| District | Winner or leader | Margin | Est. counted |
|---|---|---|---|
| SD-AL | Marty Jackley (R) · won | +28.0 | 100% |
South Dakota's district map and every candidate →
Ballot measures
- Amendment I: not decided · 44.2% yes
- Amendment J: passed · 61.5% yes
- Amendment K: passed · 60.9% yes
- Amendment L: failed · 42.4% yes
Questions and answers
Who won the 2026 South Dakota Senate race?
The Senate race: Mike Rounds (R) won, with 60.5% to 39.5% for Brian Bengs, a 21.0-point margin. Republicans keep the seat.
Who won the 2026 South Dakota governor's race?
The governor's race: Larry Rhoden (R) won, with 63.4% to 36.6% for Dan Ahlers, a 26.8-point margin. Republicans keep the seat.
How many House seats did each party win in South Dakota?
Democrats 0, Republicans 1, of 1.
Did any seats flip in South Dakota?
Not so far: every called seat stayed with the same party.
Which ballot measures passed in South Dakota?
Passed: Amendment J (61.5% yes); Amendment K (60.9% yes). Failed: Amendment L.
How many people voted in South Dakota?
About 305,537 ballots have been counted so far, compared with 354,670 in the 2022 midterm.
When will the results be official?
South Dakota must certify its results by November 10. Until then, counts are unofficial.
Every race in South Dakota → · Results by county → · Download as CSV → · Senate nationwide → · Governors nationwide →
Written automatically from civicAPI results; it updates as votes are counted. House incumbents: FEC. 2024: presidential results by county (tonmcg). 2022 ballots: University of Florida Election Lab.
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