California's 45th congressional district: election results

U.S. House elections in California's 45th congressional district, 1982 to 2024: winners, vote shares and margins. District lines are redrawn after each census, so the area covered changes over time.

Current representative: Derek Tran (Democrat), term ends 2027-01-03.

California's 45th congressional district: Republican minus Democratic share, in points. Bars above the line lean Republican, below lean Democratic.

Year	Winner	Party	Share	Margin
2024	Derek Tran	Democratic	50.1%	0.2
2022	Michelle Steel	Republican	52.4%	4.8
2020	Katie Porter	Democratic	53.5%	6.9
2018	Katie Porter	Democratic	52.1%	4.1
2016	Mimi Walters	Republican	58.6%	17.1
2014	Mimi Walters	Republican	65.1%	30.2
2012	John Campbell	Republican	58.5%	16.9
2010	Mary Whitaker Bono Mack	Republican	51.5%	9.4
2008	Mary Whitaker Bono Mack	Republican	58.3%	16.6
2006	Mary Whitaker Bono Mack	Republican	60.7%	21.3
2004	Mary Whitaker Bono Mack	Republican	66.6%	33.2
2002	Mary Whitaker Bono Mack	Republican	65.2%	32.5
2000	Dana Rohrabacher	Republican	62.1%	29.7
1998	Dana Rohrabacher	Republican	58.7%	21.3
1982	Duncan Hunter	Republican	68.6%	39.4

2024

Candidate	Party	Votes	Share
Derek Tran Won	DEM	158,264	50.10%
Michelle Steel	REP	157,611	49.90%
Total		315,875

2022

Candidate	Party	Votes	Share
Michelle Steel Won	REP	113,960	52.41%
Jay F. Chen	DEM	103,466	47.59%
Total		217,426

2020

Candidate	Party	Votes	Share
Katie Porter Won	DEM	221,843	53.46%
Greg G. Raths	REP	193,096	46.54%
Total		414,939

Questions and answers

Who represents California's 45th congressional district?

Derek Tran (Democrat) is the current representative; the term ends on 2027-01-03.

Who won the last election in California's 45th congressional district?

Derek Tran won in 2024 by 0.2 points.

Results: FiveThirtyEight, from official sources.