California's 45th Congressional District is represented by Derek Tran (Democrat), who has held the seat since 2025. Tran has an overall VoteSee report card grade of C, voted in 100% of roll-call votes on bills this Congress, and votes with the Democratic majority 92% of the time. The district includes Garden Grove, Westminster, and Buena Park. It takes in all or part of 2 counties, and 89% of residents live in Orange County. About 749,000 people live in the district, and the median household income is $107,226.
Derek Tran (Democrat) has represented California's 45th Congressional District since 2025.
See Derek Tran's full voting record and issue positions →
Winner: Derek Tran.
Incumbent Derek Tran is running for re-election. 2 candidates were on the Nov 3, 2026 ballot.
California uses a top-two primary, so the two November candidates can be from the same party.
Polls: No public polls
Source: American Community Survey 2020–2024 5-year estimates, 119th Congress boundaries.
Members of Congress who previously represented California's 45th Congressional District. District lines are redrawn after each census, so earlier members may have represented a different area under this number.
California's 45th Congressional District covers 104 square miles of land. Boundaries are for the current (119th) Congress.