2016Final results
2016 election for California Assembly District 29
California State Assembly · California
Mark Stone (D) won with 72.2% of the vote, defeating Sierra Roberts (R) by 44.5 points.
Mark StoneDemocrat · winner · incumbent
72.2%156,703
Sierra RobertsRepublican
27.8%60,245
216,948 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