California's 45th Congressional District (CA-45)

Last updated Oct 1, 2026 · 6 sources

Derek Tran, a Democrat, has represented the district since 2025.

The district includes parts of Orange and Los Angeles counties.

According to the Census Bureau's 2020–2024 American Community Survey 5-year estimates, the district has a population of 748,896, a median household income of $107,226, and a median age of 40.8. Of residents 25 and older, 38.7% hold a bachelor's degree or higher.

Representative

Derek Tran

U.S. Representative for California's 45th District · Democrat

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2026 redistricting

California uses a new congressional map in 2026: AB 604 (Proposition 50), approved by voters Nov 4, 2025.

The 2026 election for CA-45 uses the new map's CA-45; the map on this page shows the district as currently drawn (119th Congress).

Source · All 2026 redistricting changes

2026 election

Tran has filed with the FEC to run for this seat in 2026. 7 candidates for the seat have reported receipts to the FEC.

7 candidates have reported raising money for the 2026 CA-45 race to the FEC.

Election Day: Tuesday, November 3, 2026

Candidates for CA-45 in 2026 who reported raising money to the FEC
Candidate	Party	Raised	Cash on hand	Through
Derek Tran (incumbent)	Democratic	$4,981,277	$3,257,398	Jun 30
Michelle Steel	Republican	$1,252,672	$0	Oct 9
Thomas Ky-Phong Vo	Republican	$756,510	$0	Jun 16
Chuong Vo	Republican	$495,763	$74,876	Jun 30
Chi Charlie Nguyen	Republican	$485,485	$0	Jul 10
Amy Phan West	Republican	$59,400	$3,656	Jun 30
Mark Andrew Leonard	Republican	$25,945	$17,801	Jun 30