California District 21
Tue, Nov 3 · Sitting member, elected on the old lines Jim Costa Democratic since Jan 2005
Jim CostaDemocratic · IncumbentAge 74 · 21 years in CongressKyle KirklandRepublican
No published poll names both candidates.District lines changed for 2026. Results from the old lines aren't shown.
- Lines for 2026
- Redrawn. 12.4% of residents were in a different district in 2024
- On the 2026 ballot
- 2 candidates
Side by side
Left column: CostaRight column: Kirkland
- Total receipts, 2025-2026 cycle, through Oct 14
- $1.7M
- $465K
- Cash on hand
- $501K
- $13K
- Donor-based spectrum
- LiberalCentristConservativeCostaNo published score for Kirkland
- Races
- Won 13 of 13
- None listed
- Years since first win
- 21
- Not available
- Age on Election Day
- 74
- Not available
Money: FEC bulk data, through Oct 14. One or more are matched to the FEC by name, party and seat, so a total could belong to someone else.
How these are counted
Total receipts line of each candidate’s principal campaign committee, 2025-2026 cycle. Other sites may show career, six-year or all-committee totals, which differ. Costa: $1,685,249 received, $500,767 cash on hand. Kirkland: $464,700 received, $13,101 cash on hand. The spectrum is a published research score, not our rating. How this works. Wins and losses count the races in our results files, the same as each profile.
More about this race
Candidates on the ballot
- Jim CostaIncumbentDemocraticFarmer/Representative
- Kyle KirklandRepublicanEntrepreneur/Nonprofit CEO
Source: elections.cdn.sos.ca.gov (PDF), dated Aug 27
All California districts
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2024 US House margin
- D 15+ pts
- D 5 to 15 pts
- D under 5 pts
- R under 5 pts
- R 5 to 15 pts
- R 15+ pts
- Other winner
- No data
Show these districts as a list (52)
- California District 1· New lines for 2026, old result not shown
- California District 2· New lines for 2026, old result not shown
- California District 3· New lines for 2026, old result not shown
- California District 4· New lines for 2026, old result not shown
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- California District 10· New lines for 2026, old result not shown
- California District 11· Nancy Pelosi (D), Democratic by 62.0 points, 2024
- California District 12· Lateefah Simon (D), Democratic by 30.8 points, 2024
- California District 13· New lines for 2026, old result not shown
- California District 14· New lines for 2026, old result not shown
- California District 15· Kevin Mullin (D), Democratic by 46.2 points, 2024
- California District 16· New lines for 2026, old result not shown
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- California District 19· Jimmy Panetta (D), Democratic by 38.6 points, 2024
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- California District 34· Jimmy Gomez (D), Democratic by 11.2 points, 2024
- California District 35· New lines for 2026, old result not shown
- California District 36· Ted Lieu (D), Democratic by 37.4 points, 2024
- California District 37· Sydney Kamlager-Dove (D), Democratic by 56.6 points, 2024
- California District 38· New lines for 2026, old result not shown
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- California District 43· Maxine Waters (D), Democratic by 50.2 points, 2024
- California District 44· New lines for 2026, old result not shown
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- California District 49· New lines for 2026, old result not shown
- California District 50· New lines for 2026, old result not shown
- California District 51· New lines for 2026, old result not shown
- California District 52· New lines for 2026, old result not shown
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Official results for California
History (25 elections for this seat)
- Votes for listed candidates
- 195,531
- Election day
- November 5, 2024
- District map
- Older district map (2022 to 2025)
US House, California District 21, 2024, every candidate Candidate Party Votes and share Share DemocraticJim CostaWon Democratic 102,79852.6% RepublicanMichael Maher Republican 92,73347.4% - Votes for listed candidates
- 125,647
- Election day
- November 8, 2022
- District map
- Older district map (2022 to 2025)
US House, California District 21, 2022, every candidate Candidate Party Votes and share Share DemocraticJim CostaWon Democratic 68,07454.2% RepublicanMichael Maher Republican 57,57345.8% - Votes for listed candidates
- 170,334
- Election day
- November 3, 2020
- District map
- Older district map (2012 to 2020)
US House, California District 21, 2020, every candidate Candidate Party Votes and share Share RepublicanDavid G. ValadaoWon Republican 85,92850.4% DemocraticTJ Cox Democratic 84,40649.6% - Votes for listed candidates
- 113,616
- Election day
- November 6, 2018
- District map
- Older district map (2012 to 2020)
US House, California District 21, 2018, every candidate Candidate Party Votes and share Share DemocraticTJ CoxWon Democratic 57,23950.4% RepublicanDavid G. Valadao Republican 56,37749.6% - Votes for listed candidates
- 132,408
- Election day
- November 8, 2016
- District map
- Older district map (2012 to 2020)
US House, California District 21, 2016, every candidate Candidate Party Votes and share Share RepublicanDavid G. ValadaoWon Republican 75,12656.7% DemocraticEmilio Huerta Democratic 57,28243.3% - Votes for listed candidates
- 79,377
- Election day
- November 4, 2014
- District map
- Older district map (2012 to 2020)
US House, California District 21, 2014, every candidate Candidate Party Votes and share Share RepublicanDavid G. ValadaoWon Republican 45,90757.8% DemocraticAmanda Renteria Democratic 33,47042.2% - Votes for listed candidates
- 116,283
- Election day
- November 6, 2012
- District map
- Older district map (2012 to 2020)
US House, California District 21, 2012, every candidate Candidate Party Votes and share Share RepublicanDavid G. ValadaoWon Republican 67,16457.8% DemocraticJohn Hernandez Democratic 49,11942.2% - Votes for listed candidates
- 135,979
- Election day
- November 2, 2010
- District map
- Older district map (2002 to 2010)
US House, California District 21, 2010, every candidate Candidate Party Votes and share Share RepublicanDevin NunesWon Republican 135,979100.0% - Votes for listed candidates
- 209,815
- Election day
- November 4, 2008
- District map
- Older district map (2002 to 2010)
US House, California District 21, 2008, every candidate Candidate Party Votes and share Share RepublicanDevin NunesWon Republican 143,49868.4% DemocraticLarry Johnson Democratic 66,31731.6% - Votes for listed candidates
- 142,661
- Election day
- November 7, 2006
- District map
- Older district map (2002 to 2010)
US House, California District 21, 2006, every candidate Candidate Party Votes and share Share RepublicanDevin NunesWon Republican 95,21466.7% DemocraticSteven Haze Democratic 42,71829.9% GreenJohn Roger Miller Green 4,7293.3% - Votes for listed candidates
- 192,315
- Election day
- November 2, 2004
- District map
- Older district map (2002 to 2010)
US House, California District 21, 2004, every candidate Candidate Party Votes and share Share RepublicanDevin NunesWon Republican 140,72173.2% DemocraticFred B Davis Democratic 51,59426.8% - Votes for listed candidates
- 124,198
- Election day
- November 5, 2002
- District map
- Older district map (2002 to 2010)
US House, California District 21, 2002, every candidate Candidate Party Votes and share Share RepublicanDevin NunesWon Republican 87,54470.5% DemocraticDavid G Lapere Democratic 32,58426.2% LibertarianJonathan Richter Libertarian 4,0703.3% - Votes for listed candidates
- 199,100
- Election day
- November 7, 2000
- District map
- Older district map (1992 to 2000)
US House, California District 21, 2000, every candidate Candidate Party Votes and share Share RepublicanWilliam M ThomasWon Republican 142,53971.6% DemocraticPedro "Pete" Martinez Jr Democratic 49,31824.8% LibertarianJames Rs Manion Libertarian 7,2433.6% - Votes for listed candidates
- 146,983
- Election day
- November 3, 1998
- District map
- Older district map (1992 to 2000)
US House, California District 21, 1998, every candidate Candidate Party Votes and share Share RepublicanWilliam M ThomasWon Republican 115,98978.9% OtherJohn Evans Other 30,99421.1% - Votes for listed candidates
- 191,152
- Election day
- November 5, 1996
- District map
- Older district map (1992 to 2000)
US House, California District 21, 1996, every candidate Candidate Party Votes and share Share RepublicanWilliam M ThomasWon Republican 125,91665.9% DemocraticDeborah A Vollmer Democratic 50,69426.5% OtherJohn Evans Other 8,1134.2% OtherJane Bialosky Other 3,3801.8% LibertarianMike Hodges Libertarian 3,0491.6% - Votes for listed candidates
- 171,629
- Election day
- November 8, 1994
- District map
- Older district map (1992 to 2000)
US House, California District 21, 1994, every candidate Candidate Party Votes and share Share RepublicanWilliam M ThomasWon Republican 116,87468.1% DemocraticJohn L Evans Democratic 47,51727.7% LibertarianMike Hodges Libertarian 6,8994.0% Scattered write-insName as filed: Writein Write-in 3390.2% - Votes for listed candidates
- 195,965
- Election day
- November 3, 1992
- District map
- Older district map (1992 to 2000)
US House, California District 21, 1992, every candidate Candidate Party Votes and share Share RepublicanWilliam M ThomasWon Republican 127,75865.2% DemocraticDeborah A Vollmer Democratic 68,05834.7% Scattered write-insName as filed: Writein Write-in 1490.1% - Votes for listed candidates
- 202,611
- Election day
- November 6, 1990
- District map
- Older district map (1982 to 1990)
US House, California District 21, 1990, every candidate Candidate Party Votes and share Share RepublicanElton GalleglyWon Republican 118,32658.4% DemocraticRichard D Freiman Democratic 68,92134.0% LibertarianPeggy Christensen Libertarian 15,3647.6% - Votes for listed candidates
- 262,671
- Election day
- November 8, 1988
- District map
- Older district map (1982 to 1990)
US House, California District 21, 1988, every candidate Candidate Party Votes and share Share RepublicanElton GalleglyWon Republican 181,41369.1% DemocraticDonald E Stevens Democratic 75,73928.8% LibertarianRobert Jay Libertarian 5,5192.1% - Votes for listed candidates
- 193,091
- Election day
- November 4, 1986
- District map
- Older district map (1982 to 1990)
US House, California District 21, 1986, every candidate Candidate Party Votes and share Share RepublicanElton GalleglyWon Republican 132,09068.4% DemocraticGilbert R Saldana Democratic 54,49728.2% LibertarianDaniel Wiener Libertarian 6,5043.4% - Votes for listed candidates
- 239,968
- Election day
- November 6, 1984
- District map
- Older district map (1982 to 1990)
US House, California District 21, 1984, every candidate Candidate Party Votes and share Share RepublicanBobbi FiedlerWon Republican 173,50472.3% DemocraticCharles "Charlie" Davis Democratic 62,08525.9% LibertarianRobert T Leet Libertarian 4,3791.8% - Votes for listed candidates
- 192,767
- Election day
- November 2, 1982
- District map
- Older district map (1982 to 1990)
US House, California District 21, 1982, every candidate Candidate Party Votes and share Share RepublicanBobbi FiedlerWon Republican 138,47471.8% DemocraticGeorge Henry Margolis Democratic 46,41224.1% LibertarianDaniel Wiener Libertarian 7,8814.1% - Votes for listed candidates
- 153,400
- Election day
- November 4, 1980
- District map
- Older district map (1972 to 1980)
US House, California District 21, 1980, every candidate Candidate Party Votes and share Share RepublicanBobbi FiedlerWon Republican 74,67448.7% DemocraticJames C Corman Democratic 73,89848.2% LibertarianGeorge J Lehmann Libertarian 2,7901.8% OtherJan B Tucker Other 2,0381.3% - Votes for listed candidates
- 124,138
- Election day
- November 7, 1978
- District map
- Older district map (1972 to 1980)
US House, California District 21, 1978, every candidate Candidate Party Votes and share Share DemocraticJames C CormanWon Democratic 73,86959.5% RepublicanRod Walsh Republican 44,51935.9% OtherBill Hill Other 5,7504.6% - Votes for listed candidates
- 153,109
- Election day
- November 2, 1976
- District map
- Older district map (1972 to 1980)
US House, California District 21, 1976, every candidate Candidate Party Votes and share Share DemocraticJames C CormanWon Democratic 101,83766.5% RepublicanErwin "Ed" Hogan Republican 44,09428.8% OtherBill Hill Other 7,1784.7%
1976 to 2024: MIT Election Data and Science Lab, U.S. House 1976-2024, retrieved Oct 28, 2026. Compiled by MIT Election Data and Science Lab (MEDSL) from official returns; not an official source
California District 21 was redrawn for 2026, so every row here ran on older lines and covers different territory. The map in force, by state
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Cite this page
Election Wrld. (2026). California District 21, US House results. https://www.electionwrld.com/ca/congress/21. Retrieved October 31, 2026.
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Sources
Sources: MIT Election Data and Science Lab, U.S. House 1976-2024 (CC0 1.0), retrieved Oct 28, 2026, compiled by MIT Election Data and Science Lab (MEDSL) from official returns, not an official source; Census TIGERweb Legislative MapServer (120th CDs layer 0, 119th CDs layer 4, 2026 SLD upper layer 1 and lower layer 2) (US Census Bureau, public domain), retrieved Oct 28, 2026; unitedstates/congress-legislators (current) (CC0-1.0), retrieved Oct 28, 2026, compiled by the @unitedstates project volunteers (rosters from official congressional sources) from official returns, not an official source.
DataState data (JSON)Sources: MIT Election Data and Science Lab, U.S. House 1976-2024, FEC, DIME (ODC-BY), Portraits: unitedstates/images (public domain), Photo creditsData as of Oct 28, 2026