2016Final results
2016 election for California Senate District 31
California State Senate · California
Richard Roth (D) won with 60.5% of the vote, defeating Richard Reed (R) by 21.1 points.
Richard RothDemocrat · winner · incumbent
60.5%167,574
Richard ReedRepublican
39.5%109,238
276,812 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