California District 21
Primary: June 2, 2026
General Election
Top-Two Primary — All candidates on one ballot
Jim Costa
$1.3M raised
Favorite
F
District Demographics
Median HHI
$66,399
Unemployment
10.0%
Uninsured
7.3%
2024 House Results
JIM COSTA
vs52.6%
MICHAEL MAHER
47.4%
D+5.2
2024 Presidential
D: 51.7%|R: 45.6%
D+6.1
2020 Presidential
D: 59.0%|R: 39.0%
D+20.0
Candidate Details
Jim Costa
Democratic
Grade: F
2026 Fundraising$1.3M
Individuals
PACs