Generic Congressional Ballot Results in Southern California’s Orange County–San Diego Region
This chart compares responses to the congressional generic ballot among likely voters in Orange County and San Diego in October 2018 and December 2025, using PPIC statewide survey data.
Horizontal bar chart with two rows labeled Oct 2018 and Dec 2025. In October 2018, Orange County–San Diego voters show 53 percent Democratic, 42 percent Republican, and 4 percent undecided. In December 2025, the region shows 66 percent Democratic, 32 percent Republican, and 2 percent undecided.
