1978Final results
1978 election for Illinois Legislative District 47
Illinois State Senate · Illinois
Kenneth G. McMillan (R) won with 66.1% of the vote, defeating Kathryn Harris (D) by 32.1 points.
Kenneth G. McMillanRepublican · winner · incumbent
66.1%33,110
Kathryn HarrisDemocrat
33.9%17,005
50,115 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