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

      Iowa US Senate

      Winner
      REP
      Charles E Grassley
      60.1%926,007 votes
      Runner-up
      DEM
      Patty Judge
      35.7%549,460 votes
      Margin
      R+24.4
      1,541,036 total votes
      3 candidates1,541,036 total votes
      CandidatePartyVotes ▼%Vote Share
      Charles E GrassleyREP✓
      		REP926,00760.1%
      Patty JudgeDEM
      		DEM549,46035.7%
      OtherOTH
      		OTH65,5694.3%

      Seat History

      US Senate in Iowa(Class I)

      2022
      Charles E GrassleyREP
      R+12.2
      2020
      Joni K ErnstREP
      R+6.6
      2014
      Joni K ErnstREP
      R+8.3
      2010
      Charles E GrassleyREP
      R+31.1
      2008
      Tom HarkinDEM
      D+25.4
      2004
      Charles E GrassleyREP
      R+42.3
      2002
      Tom HarkinDEM
      D+10.4
      1998
      Charles E GrassleyREP
      R+37.9
      1996
      Tom HarkinDEM
      D+5.1
      1992
      Charles E GrassleyREP
      R+42.4
      1990
      Tom HarkinDEM
      D+9.1
      1986
      Charles E GrassleyREP
      R+32.5
      1984
      Tom HarkinDEM
      D+11.8
      1980
      Charles E GrassleyREP
      R+8.0
      View all US Senate history for Iowa →

      Candidates

      Charles E GrassleyREP
      Record12W-0L
      Avg MarginR+31.8
      Career1970-2022
      US Senate / US House / State House
      Full profile →
      Patty JudgeDEM
      Record2W-1L
      Avg MarginD+0.7
      Career1992-2016
      US Senate / State Senate
      Full profile →

      Also in Iowa, 2016

      President1 contest →US House4 contests →
      ← All 2016 US Senate races2016 overviewIowa profileAll elections