California State Senate District 4

Tue, Nov 3 · Represented by Marie Alvarado-Gil Republican · Member list as of Oct 28Marie Alvarado-Gil isn’t on the ballot for this seat

Jaron BrandonDemocratic

Last result · 2022 general (different candidates): Marie Alvarado-Gil (D) 52.7, Tim Robertson (D) 47.3

Alexandra DuarteRepublican

Earlier results: James Nielsen (Republican) won by 14.3 points, 2018, older linesJim Nielsen (Republican) won by 27.3 points, 2014, older linesAll 14 elections

Past results

Votes for listed candidates: 260,367
Election day: November 8, 2022
District map: Same as today

California Senate District 4, 1970 to 2022, 2022, every candidate
Candidate	Party	Votes and share	Share
DemocraticMarie Alvarado-GilWon	Democratic	137,15752.7%	52.7%
DemocraticTim Robertson	Democratic	123,21047.3%	47.3%

Votes for listed candidates: 333,258
Election day: November 6, 2018
District map: Older district map (2012 to 2021)

California Senate District 4, 1970 to 2022, 2018, every candidate
Candidate	Party	Votes and share	Share
RepublicanJames NielsenWon(incumbent)	Republican	190,44157.1%	57.1%
DemocraticPhillip Kim	Democratic	142,81742.9%	42.9%

Votes for listed candidates: 218,656
Election day: November 4, 2014
District map: Older district map (2012 to 2021)

California Senate District 4, 1970 to 2022, 2014, every candidate
Candidate	Party	Votes and share	Share
RepublicanJim NielsenWon	Republican	139,19963.7%	63.7%
DemocraticC. J. Jawahar	Democratic	79,45736.3%	36.3%

California Senate District 4, 1970 to 2022, 2010, every candidate
Candidate	Party	Votes and share	Share
RepublicanDoug LamalfaWon	Republican	226,23968.2%	68.2%
DemocraticLathe Gill	Democratic	105,46031.8%	31.8%

1970 to 2022: State Legislative Election Returns, 1967-2022 (Carl Klarner, Harvard Dataverse), retrieved Oct 28, 2026. Compiled by Carl Klarner (Harvard Dataverse) from official returns; not an official source

Only part of this chamber is up in a given cycle. Which districts vote on which date is not on file. Last contest in this district on file: 2022.

All elections (14 for this seat)

Votes for listed candidates: 260,367
Election day: November 8, 2022
District map: Same as today

California Senate District 4, 1970 to 2022, 2022, every candidate
Candidate	Party	Votes and share	Share
DemocraticMarie Alvarado-GilWon	Democratic	137,15752.7%	52.7%
DemocraticTim Robertson	Democratic	123,21047.3%	47.3%

Votes for listed candidates: 333,258
Election day: November 6, 2018
District map: Older district map (2012 to 2021)

California Senate District 4, 1970 to 2022, 2018, every candidate
Candidate	Party	Votes and share	Share
RepublicanJames NielsenWon(incumbent)	Republican	190,44157.1%	57.1%
DemocraticPhillip Kim	Democratic	142,81742.9%	42.9%

Votes for listed candidates: 218,656
Election day: November 4, 2014
District map: Older district map (2012 to 2021)

California Senate District 4, 1970 to 2022, 2014, every candidate
Candidate	Party	Votes and share	Share
RepublicanJim NielsenWon	Republican	139,19963.7%	63.7%
DemocraticC. J. Jawahar	Democratic	79,45736.3%	36.3%

California Senate District 4, 1970 to 2022, 2010, every candidate
Candidate	Party	Votes and share	Share
RepublicanDoug LamalfaWon	Republican	226,23968.2%	68.2%
DemocraticLathe Gill	Democratic	105,46031.8%	31.8%

Votes for listed candidates: 299,607
Election day: November 7, 2006
District map: Older district map (2002 to 2011)

California Senate District 4, 1970 to 2022, 2006, every candidate
Candidate	Party	Votes and share	Share
RepublicanSamuel M. AanestadWon(incumbent)	Republican	182,49460.9%	60.9%
DemocraticPaul Singh	Democratic	99,29333.1%	33.1%
LibertarianTony Munroe	Libertarian	9,3003.1%	3.1%
GreenRobert Vizzard	Green	8,5202.8%	2.8%

Votes for listed candidates: 255,134
Election day: November 5, 2002
District map: Older district map (2002 to 2011)

California Senate District 4, 1970 to 2022, 2002, every candidate
Candidate	Party	Votes and share	Share
RepublicanSamuel M. AanestadWon	Republican	148,02358.0%	58.0%
DemocraticMarianne Smith	Democratic	92,78636.4%	36.4%
LibertarianRobert H. Underwood	Libertarian	14,3255.6%	5.6%

Votes for listed candidates: 239,148
Election day: November 3, 1998
District map: Older district map (1992 to 2001)

California Senate District 4, 1970 to 2022, 1998, every candidate
Candidate	Party	Votes and share	Share
RepublicanK. Maurice JohannessenWon(incumbent)	Republican	135,52856.7%	56.7%
DemocraticMark Desio	Democratic	103,62043.3%	43.3%

Votes for listed candidates: 244,768
Election day: November 8, 1994
District map: Older district map (1992 to 2001)

California Senate District 4, 1970 to 2022, 1994, every candidate
Candidate	Party	Votes and share	Share
RepublicanK. Maurice JohannessenWon	Republican	133,10154.4%	54.4%
DemocraticMichael H. McGowan	Democratic	111,66745.6%	45.6%

Votes for listed candidates: 263,418
Election day: November 6, 1990
District map: Older district map (1984 to 1991)

California Senate District 4, 1970 to 2022, 1990, every candidate
Candidate	Party	Votes and share	Share
DemocraticMike ThompsonWon	Democratic	125,57347.7%	47.7%
RepublicanJames W. Nielsen(incumbent)	Republican	123,06646.7%	46.7%
LibertarianJuanita A. Hendricks	Libertarian	9,3983.6%	3.6%
OtherIrv Sutley	Other	5,3812.0%	2.0%

Votes for listed candidates: 232,793
Election day: November 4, 1986
District map: Older district map (1984 to 1991)

California Senate District 4, 1970 to 2022, 1986, every candidate
Candidate	Party	Votes and share	Share
RepublicanJames Wiley NielsenWon(incumbent)	Republican	150,06064.5%	64.5%
DemocraticFranklin S. Cibula	Democratic	82,73335.5%	35.5%

Votes for listed candidates: 237,522
Election day: November 2, 1982
District map: Older district map (1982 to 1983)

California Senate District 4, 1970 to 2022, 1982, every candidate
Candidate	Party	Votes and share	Share
RepublicanJames W. NielsenWon(incumbent)	Republican	145,64061.3%	61.3%
DemocraticO. H. Zeff	Democratic	84,56535.6%	35.6%
LibertarianRobert J. Burnside	Libertarian	7,3173.1%	3.1%

Votes for listed candidates: 207,832
Election day: November 7, 1978
District map: Older district map (1974 to 1981)

California Senate District 4, 1970 to 2022, 1978, every candidate
Candidate	Party	Votes and share	Share
RepublicanJames W. NielsenWon	Republican	108,68852.3%	52.3%
DemocraticJohn F. Dunlap(incumbent)	Democratic	94,44845.4%	45.4%
OtherJoseph F. Hawkes	Other	4,6962.3%	2.3%

Votes for listed candidates: 169,983
Election day: November 4, 1974
District map: Older district map (1974 to 1981)

California Senate District 4, 1970 to 2022, 1974, every candidate
Candidate	Party	Votes and share	Share
DemocraticJohn F. DunlapWon	Democratic	103,96961.2%	61.2%
RepublicanWilliam H. McPherson	Republican	60,41335.5%	35.5%
OtherSharon Thomas Marlow	Other	5,6013.3%	3.3%

Votes for listed candidates: 147,652
Election day: November 3, 1970
District map: Older district map (1966 to 1973)

California Senate District 4, 1970 to 2022, 1970, every candidate
Candidate	Party	Votes and share	Share
RepublicanPeter H. BehrWon	Republican	76,41251.8%	51.8%
DemocraticMichael R. Peevey	Democratic	67,41245.7%	45.7%
OtherAnne Smart	Other	3,8282.6%	2.6%

More about this race

Open seat

The current holder, Marie Alvarado-Gil, is not on the candidate list.

Source: elections.cdn.sos.ca.gov (PDF), dated Aug 27

District map

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Election Wrld. (2026). California State Senate District 4, election results 1970 to 2022. https://www.electionwrld.com/ca/senate/4. Retrieved October 31, 2026.

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Sources

Sources: 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; Open Civic Data division identifiers (census_autogenerated us_sldl/us_sldu and openstates state files); also (sld-recent.json): Open Civic Data division identifiers (country-us) (CC0 (repository); also (sld-recent.json): CC0 1.0), retrieved Oct 28, 2026; Open States people (current) CSVs (CC0-1.0 (Open States people data)), retrieved Oct 28, 2026, compiled by Open States volunteers and staff (rosters from state legislature sites) from official returns, not an official source; State Legislative Election Returns, 1967-2022 (Carl Klarner, Harvard Dataverse) (CC0 1.0), retrieved Oct 28, 2026, compiled by Carl Klarner (Harvard Dataverse) from official returns, not an official source.

DataState data (JSON)Sources: State Legislative Election Returns, 1967-2022 (Carl Klarner, Harvard Dataverse)Data as of Oct 28, 2026