2018Final results
2018 election for California Assembly District 31
California State Assembly · California
Joaquin Arambula (D) won with 64.8% of the vote, defeating Lupe Espinoza (R) by 29.7 points.
Joaquin ArambulaDemocrat · winner · incumbent
64.8%54,921
Lupe EspinozaRepublican
35.2%29,771
84,692 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