2024Final results
2024 election for Connecticut Senate District 18
Connecticut State Senate · Connecticut
Heather Somers (R) won with 59.0% of the vote, defeating Andrew M. Parrella (D) by 18.1 points.
Heather SomersRepublican · winner
59.0%29,124
Andrew M. ParrellaDemocrat
41.0%20,217
49,341 votes
Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 12:13 PM ET
The seat over time
D − R margin in this seat's races around 2024
Races before and after
Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 12:13 PM ET