1978Final results
1978 election for Illinois's 6th District
U.S. House · Illinois
Henry Hyde (R) won with 66.2% of the vote, defeating Jeanne P. Quinn (D) by 32.4 points.
Henry HydeRepublican · winner
66.2%87,193
Jeanne P. QuinnDemocrat
33.8%44,543
131,737 votes
Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 7:25 AM ET
The seat over time
D − R margin in this seat's races around 1978
Races before and after
Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 7:25 AM ET