2018Final results
2018 election for Montana House District 3
Montana House of Representatives · Montana
Zac Perry (D) won with 49.3% of the vote, defeating Jerry Oneil (R) by 0.7 points.
Zac PerryDemocrat · winner · incumbent
49.3%2,300
Jerry OneilRepublican
48.5%2,266
Shawn GuymonLibertarian
2.2%103
4,669 votes
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 6:17 AM ET
The seat over time
D − R margin in this seat's races around 2018
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 6:17 AM ET