Akashic EdgeAKASHIC EDGE
ElectionsCandidates
HistorianCartographer2026 ForecastArticlesAPIPricing

Latest Articles

    View all articles →

    Browse by Category

      Data Tools

      • Elections
      • Candidates
      • The Historian
      • The Cartographer
      • American Nations
      • States & Counties
      • Congressional Districts

      About

      Akashic HQ provides deep political data analysis covering 165 years of U.S. elections.

      • Data Sources & Methodology
      • Pricing
      • API Documentation
      • Contact

      © 2026 Akashic HQ. All rights reserved.

      Data: MIT Election Lab, VEST, Census Bureau
      Home/Elections/2012/US House/Illinois/IL-12
      2012·US House·Illinois·District profile →

      Illinois District 12 US House

      Winner
      DEM
      William L Enyart
      51.6%157,000 votes
      Runner-up
      REP
      Jason Plummer
      42.7%129,902 votes
      Margin
      D+8.9
      303,949 total votes
      4 candidates303,949 total votes
      CandidatePartyVotes ▼%Vote Share
      William L EnyartDEM✓
      DEM157,00051.6%
      Jason PlummerREP
      REP129,90242.7%
      Paula BradshawGRN
      GRN17,0455.6%
      WriteinOTH
      OTH2---

      Presidential Vote by District

      5 elections · 2008–2024 · 118th Congress boundaries
      Latest (2024)R+43.5
      Shift vs 2020↓ R+0.7
      R+40R+20EvenD+20D+4020082012201620202024
      YearDem %Rep %MarginTurnout
      202427.5%71.0%R+43.5372,701
      202027.7%70.5%R+42.8383,257
      201626.0%68.5%R+42.6366,997
      201236.8%63.2%R+26.3339,881
      200843.7%53.7%R+10.0368,836

      Seat History

      US House in Illinois

      2024
      Mike BostREP
      R+48.4
      2022
      Mike BostREP
      R+50.0
      Redistricted
      2020
      Mike BostREP
      R+20.9
      2018
      Mike BostREP
      R+6.2
      2016
      Mike BostREP
      R+14.6
      2014
      Mike BostREP
      R+10.6
      Redistricted
      2010
      Jerry F CostelloDEM
      D+23.3
      2008
      Jerry F CostelloDEM
      D+46.5
      2006
      Jerry F CostelloDEM
      D+100.0
      2004
      Jerry F CostelloDEM
      D+40.6
      2002
      Jerry F CostelloDEM
      D+38.5
      Redistricted
      2000
      Jerry F CostelloDEM
      D+100.0
      1998
      Jerry F CostelloDEM
      D+20.7
      1996
      Jerry F CostelloDEM
      D+45.0
      View all US House history for Illinois →

      Candidates

      WriteinOTH
      Record0W-2660L
      Avg Margin---
      Career1976-2024
      US House / Governor
      Full profile →
      Jason PlummerREP
      Record2W-1L
      Avg MarginR+70.0
      Career2012-2022
      State Senate / US House
      Full profile →
      Paula BradshawGRN
      Record0W-3L
      Avg Margin---
      Career2012-2016
      US House
      Full profile →
      William L EnyartDEM
      Record1W-1L
      Avg Margin---
      Career2012-2014
      US House
      Full profile →

      Also in Illinois, 2012

      President1 contest →
      ← All 2012 US House races2012 overviewIllinois profileAll elections