2010 Illinois U.S. House District 12 Election

Illinois · 3 candidates · See every 2010 U.S. House race

Who won the 2010 Illinois U.S. House District 12 Election?

Jerry F. Costello won the 2010 Illinois U.S. House District 12 Election. Jerry F. Costello received 121,272 popular votes (59.83%). The main challenger was Teri Newman (36.53%).

See the full head-to-head between Costello and Newman

Costello +23.3 pts · won by 47,226 votes

Jerry F. Costello DemocraticWINNER59.83%

121,272 votes

Teri Newman Republican36.53%

74,046 votes

Rodger W. JenningsGreen3.64%

7,387 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.