1978Final results
1978 election for Connecticut Senate District 18
Connecticut State Senate · Connecticut
Mary A. Martin (D) won with 58.7% of the vote, defeating Betty J. Chapman (R) by 17.4 points.
Mary A. MartinDemocrat · winner · incumbent
58.7%12,358
Betty J. ChapmanRepublican
41.3%8,686
21,044 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