1984Final results
1984 election for Indiana Senate District 18
Indiana State Senate · Indiana
William F. Justice (R) won with 59.2% of the vote, defeating Mary A. Cotner (D) by 18.4 points.
William F. JusticeRepublican · winner · incumbent
59.2%25,097
Mary A. CotnerDemocrat
40.8%17,305
42,402 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 1984
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET