California's 40th Congressional District is represented by Young Kim (Republican), who has served in the House since 2021 and has represented this district since redistricting in 2023. Kim has an overall VoteSee report card grade of B, voted in 99% of roll-call votes on bills this Congress, and votes with the Republican majority 88% of the time. The district includes Mission Viejo, Orange, and Lake Forest. It takes in all or part of 3 counties, and 91% of residents live in Orange County. About 754,000 people live in the district, and the median household income is $134,712.
Young Kim (Republican) has served in the House since 2021 and has represented California's 40th Congressional District since redistricting in 2023.
See Young Kim's full voting record and issue positions →
Winner: Ken Calvert.
Incumbent Ken Calvert 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 40th Congressional District. District lines are redrawn after each census, so earlier members may have represented a different area under this number.
California's 40th Congressional District covers 391 square miles of land. Boundaries are for the current (119th) Congress.