1978Final results
1978 election for Illinois Legislative District 16
Illinois State Senate · Illinois
Robert J. Egan (D) won with 57.7% of the vote, defeating William K. Dammeier (R) by 15.3 points.
Robert J. EganDemocrat · winner · incumbent
57.7%40,360
William K. DammeierRepublican
42.3%29,640
70,000 votes
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET
The seat over time
D − R margin in this seat's races around 1978
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET