California's 1st state senatorial district is one of 40 California State Senate districts. The district is represented by of .

District profile The district includes most of the California Cascades, northern Sierra Nevada and the Sacramento Valley, comprising Siskiyou, Modoc, Lassen, Shasta, Tehama, Plumas, Glenn, Colusa, Butte, Sutter, Yuba, Nevada, and Sierra Counties, along with eastern Placer County.

Election results from statewide races

Year Office Results 2021 Recall align="right" Yes 61.8 – 38.2% 2020 President Trump 53.8 – 43.8% 2018 Governor Cox 59.9 – 40.1% Senator de Leon 55.7 - 44.3% 2016 President Trump 54.3 – 38.6% Senator Harris 62.9 – 37.1% 2014 Governor Kashkari 55.0 – 45.0% 2012 President Romney 57.3 – 39.9% Senator Emken 57.9 – 42.1% 2010 Governor Whitman 52.4 – 42.5% Senator Fiorina 57.4 – 36.2% 2008 President McCain 52.1 – 45.8% 2006 Governor Schwarzenegger 71.0 – 24.0% Senator Mountjoy 48.8 – 46.0% 2004 President Bush 60.2 – 38.6% Senator Jones 54.2 – 42.2% 2003 Recall Yes 69.0 – 31.0% Schwarzenegger 59.9 – 18.5% 2002 Governor Simon 57.2 – 31.8% 2000 President Bush 57.6 – 36.3% Senator Campbell 50.5 – 41.0% 1998 Governor Lungren 51.5 – 44.9% Senator Fong 51.1 – 44.0% 1996 President Dole 50.8 – 37.1% 1994 Governor Wilson 65.3 – 28.7% Senator Huffington 55.1 – 35.8% 1992 President Bush 39.2 – 34.9% Senator Herschensohn 50.5 – 36.9% Senator Seymour 45.3 – 45.2%

List of senators representing the district Due to redistricting, the 1st district has been moved around different parts of the state. The current iteration resulted from the 2021 redistricting by the California Citizens Redistricting Commission.

Senators Party Years served Electoral history Counties representedJonathan WarnerDemocratic January 6, 1851 –January 5, 1852Elected in 1850.Re-elected in 1851.San DiegoDavid B. KurtzWhigJanuary 5, 1852 –January 1, 1855Elected in 1852.Re-elected in 1854.San Diego, Los Angeles, San BernardinoBenjamin D. WilsonDemocratic January 1, 1855 –January 4, 1858Elected in 1855.Cameron E. ThomDemocratic January 4, 1858 –January 2, 1860Elected in 1857.Andrés PicoWhigJanuary 2, 1860 –January 6, 1862Elected in 1859.Jacob C. BogartDemocratic January 6, 1862 –December 7, 1863Elected in 1861.San Diego, San BernardinoM. C. TuttleUnion December 7, 1863 –December 2, 1867Elected in 1863.W. A. ConnDemocratic December 2, 1867 –December 4, 1871Elected in 1867.James McCoyDemocratic December 4, 1871 –December 6, 1875Elected in 1871.John W. SatterwhiteIndependentDemocrat December 6, 1875 –January 8, 1883Elected in 1875.Re-elected in 1879.DemocraticJohn C. WolfskillDemocratic January 8, 1883 –January 5, 1885Elected in 1882.A. P. JohnsonRepublican January 5, 1885 –January 3, 1887Elected in 1884.John P. HaynesDemocratic January 3, 1887 –January 7, 1889Elected in 1886.Del Norte, HumboldtFrank McGowanRepublican January 7, 1889 –January 4, 1897Elected in 1888.Re-elected in 1982. James GillettRepublican January 4, 1897 –January 1, 1901Elected in 1896.Retired to run for U.S. House of Representatives.Thomas H. SelvageRepublicanJanuary 1, 1901 –January 7, 1907Elected in 1900.Re-elected in 1904.Del Norte, Humboldt, Trinity, TehamaGeorge T. RolleyRepublican January 7, 1907 –January 4, 1909Elected in 1906.Charles P. CuttenRepublican January 4, 1909 –January 6, 1913Elected in 1908.William KehoeRepublican January 6, 1913 –January 3, 1921Elected in 1912.Re-elected in 1916.H. C. NelsonRepublican January 3, 1921 –January 2, 1933Elected in 1920.Re-elected in 1924.Re-elected in 1928.Lost renomination.Harold J. PowersRepublican January 2, 1933 –October 5, 1953Elected in 1932.Re-elected in 1936.Re-elected in 1940.Re-elected in 1944.Re-elected in 1948.Re-elected in 1852.Resigned to become Lieutenant Governor of California.Lassen, Modoc, PlumasVacant October 5, 1953 –December 29, 1953Dale C. WilliamsDemocratic December 29, 1953 –May 12, 1955Elected to finish Powers's term.Died.VacantMay 12, 1955 –January 5, 1956Stanley ArnoldDemocratic January 5, 1956 –July 16, 1965Elected to finish Williams's term.Re-elected in 1956.Re-elected in 1960.Re-elected in 1964.Resigned when appointed to the Lassen County Superior Court.VacantJuly 16, 1965 –January 2, 1967Randolph CollierDemocratic January 2, 1967 –November 30, 1976Redistricted from the 2nd district and re-elected in 1966.Re-elected in 1968.Re-elected in 1972.Lost re-election.Del Norte, Humboldt, Lake, Mendocino, Siskiyou, Sonoma, TrinityRay E. JohnsonRepublicanDecember 6, 1976 –March 7, 1983Elected in 1976.Re-elected in 1980.Lost re-election.Butte, Colusa, Glenn, Lassen, Modoc, Nevada,Placer, Placer, Shasta, Sierra,Siskiyou, Sutter, Tehama, Trinity, YubaIndependentMarch 7, 1983 –November 30, 1984John DoolittleRepublican December 3, 1984 –January 2, 1991Redistricted from the 3rd district and re-elected in 1984.Re-elected in 1988.Resigned when elected to the U.S. House of Representatives. El Dorado, Lassen, Modoc, Nevada, Placer, Plumas,Sacramento, Sierra, Siskiyou, Sutter,Trinity, Yolo, YubaVacantJanuary 2, 1991 –May 16, 1991Tim LeslieRepublican May 16, 1991 –November 30, 2000Elected to finish Doolittle's term.Re-elected in 1992.Re-elected in 1996.Term-limited and ran for California State Assembly. Alpine, Amador, Butte, Calaveras, El Dorado, Lassen,Modoc, Mono, Nevada, Placer, Plumas,Sierra, Yuba Rico OllerRepublican December 4, 2000 –November 30, 2004Elected in 2000.Retired to run for U.S. House of Representatives.Dave CoxRepublican December 6, 2004 –July 13, 2010Elected in 2004.Re-elected in 2008.Died. Alpine, Amador, Calaveras, El Dorado,Lassen, Modoc, Mono, Nevada, Placer,Plumas, Sacramento, SierraVacantJuly 13, 2010 –January 6, 2011Ted GainesRepublicanJanuary 6, 2011 –January 7, 2019Elected to finish Cox's term.Re-elected in 2012.Re-elected in 2016.Resigned when elected to the California State Board of Equalization.Alpine, El Dorado, Lassen, Modoc, Nevada,Placer, Plumas, Sacramento, Shasta,Shasta, SiskiyouVacantJanuary 7, 2019 –June 12, 2019Brian DahleRepublican June 12, 2019 –November 30, 2024Elected to finish Gaines's term.Re-elected in 2020.Term-limited and retired.Megan DahleRepublican December 2, 2024 –presentElected in 2024.

Election results (1990-present)

2024

2020

2019 (special)

2016

2012

2011 (special)

2008

2004

2000

1996

1992

1991 (special)

See also California State Senate California State Senate districts Districts in California

References

External links District map from the California Citizens Redistricting Commission