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2018 Illinois U.S. House District 12 Election

Illinois · 3 candidates · See every 2018 U.S. House race

Who won the 2018 Illinois U.S. House District 12 Election?

Mike Bost won the 2018 Illinois U.S. House District 12 Election. Mike Bost received 134,884 popular votes (51.57%). The main challenger was Brendan Kelly (45.39%).

See the full head-to-head between Bost and Kelly

Bost +6.2 pts · won by 16,160 votes
Mike BostRepublicanWINNER51.57%
134,884 votes
Brendan KellyDemocratic45.39%
118,724 votes
Randy AuxierGreen3.03%
7,935 votes
Popular-vote totals for U.S. House elections come from the MIT Election Data and Science Lab (1976–2024).

Data last verified July 28, 2026.