2016Final results
2016 election for Massachusetts Senate District 5
Massachusetts State Senate · Massachusetts
Donald F. Humason Jr. (R) won with 59.5% of the vote, defeating Jerome Parker-O'grady (D) by 19.1 points.
Donald F. Humason Jr.Republican · winner · incumbent
59.5%43,097
Jerome Parker-O'gradyDemocrat
40.4%29,285
72,449 votes
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 4:52 AM ET
The seat over time
D − R margin in this seat's races around 2016
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 4:52 AM ET