2016Final results
2016 election for Pennsylvania House District 99
Pennsylvania House of Representatives · Pennsylvania
Dave Zimmerman (R) won with 74.3% of the vote, defeating Duane A. Groff (D) by 48.5 points.
Dave ZimmermanRepublican · winner · incumbent
74.3%17,945
Duane A. GroffDemocrat
25.7%6,219
The same year, the district voted R+42.8 for president; this race was R+48.5.24,164 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