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2018 California U.S. House District 21 Election

California · 2 candidates · See every 2018 U.S. House race

Who won the 2018 California U.S. House District 21 Election?

TJ Cox won the 2018 California U.S. House District 21 Election. TJ Cox received 57,239 popular votes (50.38%). The main challenger was David G. Valadao (49.62%).

See the full head-to-head between Cox and Valadao

Cox +0.8 pts · won by 862 votes
TJ CoxDemocraticWINNER50.38%
57,239 votes
David G. ValadaoRepublican49.62%
56,377 votes
Popular-vote totals for U.S. House elections come from the MIT Election Data and Science Lab (1976–2024).

Data last verified July 28, 2026.