2026 California House Election Interactive Map

All US House seats to be contested in 2026

Hover over a district for details.

District Incumbent Party Since Term 2026 Rating Margin of Victory
House(a) President(b)
CA- 9 Josh Harder
2019 4th
3.6% 1.8%
CA- 13 Adam Gray
2025 1st
0.1% 5.4%
CA- 21 Jim Costa
2013 7th
5.1% 3.8%
CA- 22 David Valadao
2021 3rd
6.8% 5.8%
CA- 27 George Whitesides
2025 1st
2.7% 3.9%
CA- 40 Young Kim
2021 3rd
10.5% 2.3%
CA- 41 Ken Calvert
1993 17th
3.4% 5.9%
CA- 45 Derek Tran
2025 1st
0.2% 1.5%
CA- 47 Dave Min
2025 1st
2.9% 4.2%
CA- 49 Mike Levin
2019 4th
4.3% 7.8%

(a) Source: 270toWin research.
Aside from these exceptions, the margin is the difference between the Democratic and Republican nominee in the 2024 general election.
Exception types: * Uncontested | + No major party opposition | ^ Both nominees from same party | x All-party primary | y Ranked choice tabulation

(b) Source: Pres by CD. The margin is the difference between Donald Trump and Kamala Harris in the 2024 presidential election, based on congressional district boundaries in use for the 2026 election.