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      Data: MIT Election Lab, VEST, Census Bureau
      Home/Elections/2016/US Senate/South Dakota
      2016·US Senate·South Dakota

      South Dakota US Senate

      Winner
      REP
      John R Thune
      71.8%265,516 votes
      Runner-up
      DEM
      Jay Williams
      28.2%104,140 votes
      Margin
      R+43.7
      369,656 total votes
      2 candidates369,656 total votes
      CandidatePartyVotes ▼%Vote Share
      John R ThuneREP✓
      		REP265,51671.8%
      Jay WilliamsDEM
      		DEM104,14028.2%

      Seat History

      US Senate in South Dakota(Class I)

      2022
      John R ThuneREP
      R+43.5
      2020
      Michael RoundsREP
      R+31.5
      2014
      Michael RoundsREP
      R+20.9
      2010
      John R ThuneREP
      R+100.0
      2008
      Timothy V JohnsonDEM
      D+25.0
      2004
      John R ThuneREP
      R+1.1
      2002
      Timothy V JohnsonDEM
      D+0.2
      1998
      Thomas A DaschleDEM
      D+25.7
      1996
      Timothy V JohnsonDEM
      D+2.6
      1992
      Thomas A DaschleDEM
      D+32.4
      1990
      Larry PresslerREP
      R+7.3
      1986
      Thomas A DaschleDEM
      D+3.2
      1984
      Larry PresslerREP
      R+49.0
      1980
      James AbdnorREP
      R+18.8
      View all US Senate history for South Dakota →

      Candidates

      Jay WilliamsDEM
      Record0W-4L
      Avg MarginR+23.2
      Career2010-2022
      State House / US Senate
      Full profile →
      John R ThuneREP
      Record7W-1L
      Avg MarginR+36.2
      Career1996-2022
      US Senate / US House
      Full profile →

      Also in South Dakota, 2016

      President1 contest →US House1 contest →
      ← All 2016 US Senate races2016 overviewSouth Dakota profileAll elections