| District: | 1 |
| Chamber: | Senate |
| Population: | 935,336[1] |
| Population Year: | 2010 |
| Voting Age: | 728,887 |
| Citizen Voting Age: | 672,832 |
| Percent White: | 79.41 |
| Percent Black: | 1.84 |
| Percent Latino: | 10.73 |
| Percent Asian: | 4.59 |
| Percent Native American: | 2.52 |
| Percent Pacific Islander: | 0.27 |
| Percent Other Race: | 0.27 |
| Percent Remainder Of Multiracial: | 0.37 |
| Registered: | 618,334[2] |
| Democratic: | 30.27 |
| Republican: | 42.07 |
| Npp: | 19.85 |
California's 1st state senatorial district is one of 40 California State Senate districts. The district is represented by of, having won the seat in a June 2019 special election after Republican Ted Gaines of El Dorado Hills resigned to become a member of the California Board of Equalization in January 2019.[3] [4] [5]
The district includes most of the Redwood Forest region and northwestern Sierra Nevada, comprising Siskiyou, Modoc, Lassen, Shasta, Tehama, Plumas, Glenn, Colusa, Butte, Sutter, Yuba, Nevada, and Sierra Counties, along with eastern Placer County.
| 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% |
| Senators | Party | Years served | Electoral history | Counties represented | |||
|---|---|---|---|---|---|---|---|
| District established January 6, 1851 | |||||||
Jonathan Warner | Democratic | January 6, 1851 – January 5, 1852 | Elected in 1850. Re-elected in 1851. | San Diego | |||
David B. Kurtz | Whig | January 5, 1852 – January 1, 1855 | Elected in 1852. Re-elected in 1854. | ||||
| San Diego, Los Angeles, San Bernardino | |||||||
Benjamin D. Wilson | Democratic | January 1, 1855 – January 4, 1858 | Elected in 1855. | ||||
Cameron E. Thom | Democratic | January 4, 1858 – January 2, 1860 | Elected in 1857. | ||||
Andrés Pico | Whig | January 2, 1860 – January 6, 1862 | Elected in 1859. | ||||
Jacob C. Bogart | Democratic | January 6, 1862 – December 7, 1863 | Elected in 1861. | San Diego, San Bernardino | |||
M. C. Tuttle | Union | December 7, 1863 – December 2, 1867 | Elected in 1863. | ||||
W. A. Conn | Democratic | December 2, 1867 – December 4, 1871 | Elected in 1867. | ||||
James McCoy | Democratic | December 4, 1871 – December 6, 1875 | Elected in 1871. | ||||
John W. Satterwhite | Independent Democrat | December 6, 1875 – January 8, 1883 | Elected in 1875. Re-elected in 1879. | ||||
| Democratic | |||||||
John C. Wolfskill | Democratic | January 8, 1883 – January 5, 1885 | Elected in 1882. | ||||
A. P. Johnson | Republican | January 5, 1885 – January 3, 1887 | Elected in 1884. | ||||
John P. Haynes | Democratic | January 3, 1887 – January 7, 1889 | Elected in 1886. | Del Norte, Humboldt | |||
| Frank McGowan | Republican | January 7, 1889 – January 4, 1897 | Elected in 1888. Re-elected in 1982. | ||||
James Gillett | Republican | January 4, 1897 – January 1, 1901 | Elected in 1896. Retired to run for U.S. House of Representatives. | ||||
| Thomas H. Selvage | Republican | January 1, 1901 – January 7, 1907 | Elected in 1900. Re-elected in 1904. | ||||
| Del Norte, Humboldt, Trinity, Tehama | |||||||
George T. Rolley | Republican | January 7, 1907 – January 4, 1909 | Elected in 1906. | ||||
Charles P. Cutten | Republican | January 4, 1909 – January 6, 1913 | Elected in 1908. | ||||
| William Kehoe | Republican | January 6, 1913 – January 3, 1921 | Elected in 1912. Re-elected in 1916. | ||||
| H. C. Nelson | Republican | January 3, 1921 – January 2, 1933 | Elected in 1920. Re-elected in 1924. Re-elected in 1928. Lost renomination. | ||||
| Harold J. Powers | Republican | January 2, 1933 – October 5, 1953 | Elected 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. | Lassen, Modoc, Plumas | |||
| Vacant | October 5, 1953 – December 29, 1953 | ||||||
Dale C. Williams | Democratic | December 29, 1953 – May 12, 1955 | Elected to finish Powers's term. Died.[6] | ||||
| Vacant | May 12, 1955 – January 5, 1956 | ||||||
Stanley Arnold | Democratic | January 5, 1956 – July 16, 1965 | Elected to finish Williams's term. Re-elected in 1956. Re-elected in 1960. Re-elected in 1964. Resigned to become a Justice of the Lassen County Superior Court. | ||||
| Vacant | July 16, 1965 – January 2, 1967 | ||||||
| 100px Randolph Collier | Democratic | January 2, 1967 – November 30, 1976 | Redistricted 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, Trinity | |||
| align=left rowspan=2 | Ray E. Johnson | Republican | December 6, 1976 – November 30, 1984 | Elected in 1976. Re-elected in 1980. Changed parties on March 7, 1983. Lost re-election. | Rowspan=2 | Butte, Colusa, Glenn, Lassen, Modoc, Nevada, Placer, Placer, Shasta, Sierra, Siskiyou, Sutter, Tehama, Trinity, Yuba | |
| Independent | |||||||
| align=left | John Doolittle | Republican | December 3, 1984 – January 2, 1991 | Redistricted 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, Yuba | ||
| align=left | Tim Leslie | Republican | May 16, 1991 – November 30, 2000 | Re-elected in 1992. Re-elected in 1996. Termed out and ran for State Assembly. | Alpine, Amador, Butte, Calaveras, El Dorado, Lassen, Modoc, Mono, Nevada, Placer, Plumas, Sierra, Yuba | ||
| align=left | Rico Oller | Republican | December 4, 2000 – November 30, 2004 | Elected in 2000. Retired to run for U.S. House of Representatives. | |||
| align=left | Dave Cox | Republican | December 6, 2004 – July 13, 2010 | Elected in 2004. Re-elected in 2008. Died. | Alpine, Amador, Calaveras, El Dorado, Lassen, Modoc, Mono, Nevada, Placer, Plumas, Sacramento, Sierra | ||
| Vacant | July 13, 2010 – January 6, 2011 | ||||||
| align=left rowspan=2 | Ted Gaines | Republican | January 6, 2011 – January 7, 2019 | Elected 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, Siskiyou | |||||||
| align=left | Brian Dahle | Republican | June 12, 2019 – present | Elected to finish Gaines's term. Re-elected in 2020. Retiring at end of term due to term limits. | |||