2010Final results
2010 election for Connecticut Senate District 6
Connecticut State Senate · Connecticut
Donald J. Defronzo (D) won with 68.0% of the vote, defeating Henry Zembko (R) by 36.1 points.
Donald J. DefronzoDemocrat · winner · incumbent
68.0%15,556
Henry ZembkoRepublican
32.0%7,307
22,863 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 2010
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET