2004 Illinois U.S. House District 12 Election

Illinois · 3 candidates · See every 2004 U.S. House race

Who won the 2004 Illinois U.S. House District 12 Election?

Jerry F. Costello won the 2004 Illinois U.S. House District 12 Election. Jerry F. Costello received 198,962 popular votes (69.46%). The main challenger was Erin R. Zweigart (28.86%).

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

Costello +40.6 pts · won by 116,285 votes

Jerry F. Costello DemocraticWINNER69.46%

198,962 votes

Erin R. Zweigart Republican28.86%

82,677 votes

Walter B. SteeleLibertarian1.67%

4,794 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.