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2026 midtermsResults

2026 results · California · California 12th District

Lateefah Simon, the Democrat, wins re-election in California's 12th District

California 12th District: votes counted for each candidate
CandidateVotesShareShare of the vote
Lateefah SimonDemocrat, incumbent158,42580.6%
Jamie JoyceDemocrat38,22719.4%

Called by Call the Map, Nov 4, 4:49 PM EST · 90% counted.

About 90% of the expected vote counted196,652 votesCount last changed Nov 7, 12:48 PM EST · checked Nov 7, 4:59 PM ESTSource: the official state and county counts, gathered by civicAPI

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About the seat

California's 12th District lies within Alameda County. The Democrats held it before this election. Its voters went D+75.7 for president in 2024.

2024 president
D+75.7

Shares are of the votes counted this year. The district was redrawn for 2026 or had no contest in 2024, so no 2024 House race compares like for like.

won leads, still counting changed party. Margins are the leader’s share minus the runner-up’s, in points.

Every count on this page is the official count, from the state and its counties. Counts are unofficial until the state certifies them. The 2024 comparison is the presidential vote, Kamala Harris against Donald Trump, on the same ground. Margins are Lateefah Simon minus Jamie Joyce, in points of all votes.