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2018 Illinois U.S. House District 6 Election

Illinois · 2 candidates · See every 2018 U.S. House race

Who won the 2018 Illinois U.S. House District 6 Election?

Sean Casten won the 2018 Illinois U.S. House District 6 Election. Sean Casten received 169,001 popular votes (53.58%). The main challenger was Peter J. Roskam (46.42%).

See the full head-to-head between Casten and Roskam

Casten +7.2 pts · won by 22,556 votes
Sean CastenDemocraticWINNER53.58%
169,001 votes
Peter J. RoskamRepublican46.42%
146,445 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.