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2026 midtermsResults

2026 results · South Dakota · South Dakota Senate

Mike Rounds, the Republican, wins re-election to the Senate in South Dakota

South Dakota Senate: votes counted for each candidate
CandidateVotesShareShare of the vote
Mike RoundsRepublican, incumbent184,58960.5%
Brian L BengsIndependent120,51339.5%

Called by Call the Map, Nov 4, 8:24 AM EST · 87% counted.

About 87% of the expected vote counted305,102 votesCount last changed Nov 7, 5:11 PM ESTSource: South Dakota Secretary of State

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What the count shows

The counties compared cast 71% as many votes as in 2024, from 80% in Grant County to 58% in Hanson County.

South Dakota’s ballot

All of South Dakota’s resultsBallot measures

StatewideRepublicans won all 5 of South Dakota's statewide races.

  1. U.S. SenateThis raceMike RoundsR+21.0
  2. GovernorLarry RhodenR+27.0
  3. AuditorCatherine BarrancoR+25.1
  4. Secretary of StateHeather BaxterR+22.3
  5. TreasurerMelissa HullR+24.9

U.S. HouseBefore the election R 1–0, now R 1–0

  1. R+28.0Jackley

won leads, still counting changed party. Margins are the leader’s share minus the runner-up’s, in points.

Every count on this page is the official count published by the South Dakota Secretary of State. Counts are unofficial until the state certifies them. The 2024 comparison is the presidential vote, Kamala Harris against Donald Trump, on the same ground. Margins are Brian L Bengs minus Mike Rounds, in points of all votes. Photos: Mike Rounds, by United States Congress, public domain, via Wikimedia Commons, cropped, background removed; Brian Bengs, official US Air Force portrait, public domain, via Wikimedia Commons, cropped, background removed.