2014 House Primary |
| Candidate | Party | # Votes | % Votes |
| Michael Mason | Democratic | 8,615 | 100.0% |
2014 House General Election |
| Candidate | Party | # Votes | % Votes |
| Michael Mason | Democratic | 78,465 | 32.9% |
| Peter Roskam | Republican | 160,287 | 67.1% |
2014 House Primary |
| Candidate | Party | # Votes | % Votes |
| Peter Roskam | Republican | 65,332 | 100.0% |
2012 House General Election |
| Candidate | Party | # Votes | % Votes |
| Leslie Coolidge | Democratic | 132,991 | 40.8% |
| Peter Roskam | Republican | 193,138 | 59.2% |
2010 House Primary |
| Candidate | Party | # Votes | % Votes |
| Benjamin Lowe | Democratic | 23,542 | 100.0% |
2010 House General Election |
| Candidate | Party | # Votes | % Votes |
| Benjamin Lowe | Democratic | 65,379 | 36.4% |
| Peter Roskam | Republican | 114,456 | 63.6% |
2010 House Primary |
| Candidate | Party | # Votes | % Votes |
| Peter Roskam | Republican | 53,081 | 100.0% |
2008 House Primary |
| Candidate | Party | # Votes | % Votes |
| Stan Jagla | Democratic | 15,767 | 23.0% |
| Jill Morgenthaler | Democratic | 52,690 | 77.0% |
2008 House General Election |
| Candidate | Party | # Votes | % Votes |
| Jill Morgenthaler | Democratic | 109,007 | 42.4% |
| Peter Roskam | Republican | 147,906 | 57.6% |
2008 House Primary |
| Candidate | Party | # Votes | % Votes |
| Peter Roskam | Republican | 57,612 | 100.0% |
2006 House Primary |
| Candidate | Party | # Votes | % Votes |
| Christine Cegelis | Democratic | 13,159 | 40.4% |
| Tammy Duckworth | Democratic | 14,283 | 43.8% |
| Lindy Scott | Democratic | 5,133 | 15.8% |
2006 House General Election |
| Candidate | Party | # Votes | % Votes |
| Tammy Duckworth | Democratic | 86,572 | 48.6% |
| Peter Roskam | Republican | 91,382 | 51.4% |
2006 House Primary |
| Candidate | Party | # Votes | % Votes |
| Peter Roskam | Republican | 50,794 | 100.0% |
2004 House Primary |
| Candidate | Party | # Votes | % Votes |
| Tom Berry | Democratic | 12,905 | 35.7% |
| Christine Cegelis | Democratic | 23,253 | 64.3% |
2004 House General Election |
| Candidate | Party | # Votes | % Votes |
| Christine Cegelis | Democratic | 110,470 | 44.2% |
| Henry Hyde | Republican | 139,627 | 55.8% |
2002 House General Election |
| Candidate | Party | # Votes | % Votes |
| Tom Berry | Democratic | 60,698 | 34.9% |
| Henry Hyde | Republican | 113,174 | 65.1% |
2000 House Primary |
| Candidate | Party | # Votes | % Votes |
| Brent Christensen | Democratic | 10,546 | 62.0% |
| Thomas Cramer | Democratic | 6,464 | 38.0% |
2000 House General Election |
| Candidate | Party | # Votes | % Votes |
| Brent Christensen | Democratic | 92,880 | 41.1% |
| Henry Hyde | Republican | 133,327 | 58.9% |
1998 House General Election |
| Candidate | Party | # Votes | % Votes |
| Thomas Cramer | Democratic | 49,906 | 30.1% |
| George Meyers | Libertarian | 4,199 | 2.5% |
| Henry Hyde | Republican | 111,603 | 67.3% |
1996 House General Election |
| Candidate | Party | # Votes | % Votes |
| Stephen de la Rosa | Democratic | 68,807 | 33.4% |
| George Meyers | Libertarian | 4,746 | 2.3% |
| Henry Hyde | Republican | 132,401 | 64.3% |
1996 House Primary |
| Candidate | Party | # Votes | % Votes |
| Bob Bailie | Republican | 6,200 | 9.7% |
| Henry Hyde | Republican | 53,720 | 83.6% |
| Robert Wheat | Republican | 4,315 | 6.7% |
