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      Data: MIT Election Lab, VEST, Census Bureau
      Home/Elections/2010/US House/California/CA-20
      2010·US House·California·District profile →

      California District 20 US House

      Winner
      DEM
      Jim Costa
      51.7%46,247 votes
      Runner-up
      REP
      Andy Vidak
      48.3%43,197 votes
      Margin
      D+3.4
      89,444 total votes
      2 candidates89,444 total votes
      CandidatePartyVotes ▼%Vote Share
      Jim CostaDEM✓
      		DEM46,24751.7%
      Andy VidakREP
      		REP43,19748.3%

      Presidential Vote by District

      5 elections · 2008–2024 · 118th Congress boundaries
      Latest (2024)R+30.3
      Shift vs 2020↓ R+5.5
      R+20EvenD+2020082012201620202024
      YearDem %Rep %MarginTurnout
      202433.7%64.0%R+30.3328,446
      202036.4%61.3%R+24.9349,862
      201631.8%62.6%R+30.8270,759
      201233.0%67.0%R+33.9246,703
      200834.5%64.9%R+30.4254,364

      Seat History

      US House in California

      2024
      Vince FongREP
      R+100.0
      2022
      Kevin McCarthyREP
      R+34.5
      Redistricted
      2020
      Jimmy PanettaDEM
      D+53.5
      2018
      Jimmy PanettaDEM
      D+81.4
      2016
      Jimmy PanettaDEM
      D+41.5
      2014
      Sam FarrDEM
      D+75.2
      2012
      Sam FarrDEM
      D+48.1
      Redistricted
      2008
      Jim CostaDEM
      D+48.7
      2006
      Jim CostaDEM
      D+100.0
      2004
      Jim CostaDEM
      D+6.8
      2002
      Calvin M DooleyDEM
      D+29.4
      Redistricted
      2000
      Calvin M DooleyDEM
      D+6.8
      1998
      Calvin M DooleyDEM
      D+21.5
      1996
      Calvin M DooleyDEM
      D+17.4
      View all US House history for California →

      Candidates

      Jim CostaDEM
      Record21W-0L
      Avg MarginD+38.3
      Career1978-2024
      US House / State Senate / State House
      Full profile →
      Andy VidakREP
      Record4W-2L
      Avg MarginR+4.2
      Career2010-2018
      State Senate / US House
      Full profile →

      Also in California, 2010

      US Senate1 contest →Governor1 contest →
      ← All 2010 US House races2010 overviewCalifornia profileAll elections