HOUSE
California CA-21 House2026
RACE AT A GLANCE
RACE TYPE
Incumbent running
Jim Costa (D)
COOK PARTISAN VOTING INDEX
Last updated : Nov 17, 2025D +50
R +50
D +5
Race summary
The Central Valley-based 21st District now would have voted for Harris by about six points, a slight shift to the left from the old version of this district.Key Dates
Filing Deadline: Mar 6, 2026
Primary Election: Jun 2, 2026
INCUMBENT
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First Elected: Sign in to view
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INCUMBENT
Full Bio:
COSTA, Jim, a Representative from California; born in Fresno, Fresno County,
Calif., April 13, 1952; B.A., California State University, Fresno, Calif.,
1974; member of the California state assembly, 1978-1994; member of the
California state senate, 1994-2002; professional advocate; elected as a
Democrat to the One Hundred Ninth and to the six succeeding Congresses (January
3, 2005-present).
Source: Bioguide
CANDIDATES
Republicans
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DISTRICT DATA
California - 21
Central Valley: Fresno, Visalia
Population Breakdown
Source: 2020 Census (VAP) for 2026
Past Presidential Results from this District
2024 Election Results
Source: Dave Leip
2020 Election Results
Source: Dave's Redistricting/VEST
RACE ANALYSIS
Race Analysis
Updated: Nov 4, 2025
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