Class 1Class 1 U.S. senators belong to the electoral cycle that has recently been contested in 2000, 2006, 2012, and 2018. The next election will be, in 2024.
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C
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Class 3Class 3 U.S. senators belong to the electoral cycle that has recently been contested in 2004, 2010, and 2016, and 2022. The next election will be in 2028.
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#
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Senator
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Party
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Dates in office
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Electoral history
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T
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T
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Electoral history
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Dates in office
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Party
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Senator
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#
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1
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John C. FrΓ©mont
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Democratic
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Sep 9, 1850 β Mar 3, 1851
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Elected in 1849.
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1
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31st
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1
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Elected in 1849.
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Sep 9, 1850 β Mar 3, 1855
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Democratic
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William M. Gwin
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1
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Vacant
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Mar 4, 1851 β Jan 29, 1852
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Legislature failed to elect.
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2
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32nd
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2
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John B. Weller
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Democratic
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Jan 30, 1852 β Mar 3, 1857
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Elected late in 1852.Lost re-election.
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33rd
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34th
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2
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Legislature failed to elect.
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Mar 4, 1855 β Jan 13, 1857
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Vacant
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Elected late in 1857.
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Jan 14, 1857 β Mar 3, 1861
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Democratic
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William M. Gwin
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3
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David C. Broderick
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Democratic
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Mar 4, 1857 β Sep 16, 1859
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Elected in 1856.Died.
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3
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35th
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36th
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Vacant
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Sep 17, 1859 β Nov 2, 1859
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4
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Henry P. Haun
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Democratic
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Nov 3, 1859 β Mar 4, 1860
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Appointed to continue Broderick's term.Lost election to finish Broderick's term.
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5
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Milton Latham
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Democratic
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Mar 5, 1860 β Mar 3, 1863
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Elected in 1860 to finish Broderick's term.Lost re-election.
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37th
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3
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Elected in 1860.Retired.
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Mar 4, 1861 β Mar 3, 1867
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Democratic
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James A. McDougall
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2
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6
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John Conness
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Republican
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Mar 4, 1863 β Mar 3, 1869
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Elected during the 1862/1863 cycle.
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4
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38th
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39th
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40th
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4
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Elected during the 1866/1867 cycle.
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Mar 4, 1867 β Mar 3, 1873
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Republican
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Cornelius Cole
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3
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7
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Eugene Casserly
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Democratic
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Mar 4, 1869 β Nov 29, 1873
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Elected in 1868.Resigned.
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5
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41st
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42nd
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43rd
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5
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Elected in 1872. Or 1873.Retired.
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Mar 4, 1873 β Mar 3, 1879
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Republican
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Aaron A. Sargent
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4
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Vacant
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Nov 30, 1873 β Dec 22, 1873
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8
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John S. Hager
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Democratic
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Dec 23, 1873 β Mar 3, 1875
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Elected in 1873 to finish Casserly's term.Retired.
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9
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Newton Booth
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Anti-Monopoly
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Mar 4, 1875 β Mar 3, 1881
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Elected early in 1873.Retired.
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6
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44th
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45th
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46th
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6
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Elected in 1878.Retired.
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Mar 4, 1879 β Mar 3, 1885
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Democratic
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James T. Farley
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5
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10
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John Franklin Miller
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Republican
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Mar 4, 1881 β Mar 8, 1886
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Elected in 1880.Died.
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7
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47th
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48th
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49th
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7
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Elected in 1885.
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Mar 4, 1885 β Jun 21, 1893
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Republican
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Leland Stanford
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6
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Vacant
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Mar 9, 1886 β Mar 22, 1886
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11
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George Hearst
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Democratic
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Mar 23, 1886 β Aug 3, 1886
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Appointed to continue Miller's term.Successor elected.
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12
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Abram Williams
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Republican
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Aug 4, 1886 β Mar 3, 1887
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Elected in 1886 to finish Miller's term.Retired.
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13
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George Hearst
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Democratic
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Mar 4, 1887 β Feb 28, 1891
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Elected in 1887.Died.
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8
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50th
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51st
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Vacant
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Mar 1, 1891 β Mar 18, 1891
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52nd
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8
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Re-elected in 1891.Died.
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14
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Charles N. Felton
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Republican
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Mar 19, 1891 β Mar 3, 1893
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Elected in 1891 to finish Hearst's term.Retired.
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15
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Stephen M. White
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Democratic
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Mar 4, 1893 β Mar 3, 1899
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Elected in 1893.Retired.
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9
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53rd
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Jun 22, 1893 β Jul 25, 1893
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Vacant
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Appointed to continue Stanford's term.Elected in 1895 to finish Stanford's term.
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Jul 26, 1893 β Mar 3, 1915
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Republican
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George C. Perkins
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7
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54th
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55th
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9
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Re-elected in 1897.
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Vacant
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Mar 4, 1899 β Feb 6, 1900
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10
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56th
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16
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Thomas R. Bard
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Republican
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Feb 7, 1900 β Mar 3, 1905
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Elected late in 1900.Lost re-election.
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57th
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58th
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10
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Re-elected in 1903.
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17
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Frank P. Flint
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Republican
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Mar 4, 1905 β Mar 3, 1911
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Elected in 1905.Retired.
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11
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59th
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60th
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61st
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11
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Re-elected in 1909.Retired.
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18
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John D. Works
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Republican
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Mar 4, 1911 β Mar 3, 1917
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Elected in 1911.Retired.
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12
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62nd
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63rd
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64th
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12
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Elected in 1914.Lost re-election.
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Mar 4, 1915 β Mar 3, 1921
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Democratic
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James D. Phelan
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8
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19
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Hiram Johnson
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Republican
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Mar 4, 1917 β Aug 6, 1945
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Elected in 1916.Not seated until March 16 in order to remain Governor of California.
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13
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65th
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66th
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67th
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13
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Elected in 1920.
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Mar 4, 1921 β Mar 3, 1933
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Republican
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Samuel M. Shortridge
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9
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Re-elected in 1922.
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14
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68th
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69th
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70th
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14
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Re-elected in 1926.Lost renomination.
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Re-elected in 1928.
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15
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71st
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72nd
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73rd
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15
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Elected in 1932.Lost renomination, "then resigned."
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Mar 4, 1933 β Nov 8, 1938
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Democratic
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William Gibbs McAdoo
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10
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Re-elected in 1934.
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16
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74th
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75th
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Appointed to finish McAdoo's term.Retired.
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Nov 9, 1938 β Jan 3, 1939
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Democratic
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Thomas M. Storke
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11
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76th
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16
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Elected in 1938.
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Jan 3, 1939 β Nov 30, 1950
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Democratic
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Sheridan Downey
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12
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Re-elected in 1940.Died.
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17
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77th
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78th
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79th
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17
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Re-elected in 1944.Ran for re-election, but dropped out of renomination race due to ill health.Resigned early due to ill health.
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Vacant
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Aug 7, 1945 β Aug 25, 1945
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20
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William Knowland
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Republican
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Aug 26, 1945 β Jan 3, 1959
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Appointed to continue Johnson's term.Elected in 1946 to finish Johnson's term.
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Re-elected to full term in 1946.
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18
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80th
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81st
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Appointed to finish Downey's term, having been elected to the next term.
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Dec 1, 1950 β Jan 1, 1953
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Republican
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Richard Nixon
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13
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82nd
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18
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Elected in 1950.Resigned to become U.S. Vice President.
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Appointed to continue Nixon's term.Elected in 1954 to finish Nixon's term.
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Jan 2, 1953 β Jan 3, 1969
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Republican
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Thomas Kuchel
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14
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Re-elected in 1952.Retired to run for Governor of California.
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19
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83rd
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84th
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85th
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19
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Re-elected in 1956.
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21
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Clair Engle
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Democratic
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Jan 3, 1959 β Jul 30, 1964
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Elected in 1958.Died.
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20
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86th
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87th
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88th
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20
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Re-elected in 1962.Lost renomination.
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Vacant
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Jul 31, 1964 β Aug 3, 1964
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22
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Pierre Salinger
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Democratic
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Aug 4, 1964 β Dec 31, 1964
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Appointed to finish Engle's term.Lost election to full term, resigned early to give successor preferential seniority.
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23
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George Murphy
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Republican
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Jan 1, 1965 β Jan 1, 1971
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Appointed early to finish Engle's term, having been elected to the next term.
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Elected in 1964.Lost re-election, resigned early to give successor preferential seniority.
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21
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89th
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90th
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91st
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21
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Elected in 1968.
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Jan 3, 1969 β Jan 3, 1993
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Democratic
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Alan Cranston
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15
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24
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John V. Tunney
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Democratic
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Jan 2, 1971 β Jan 1, 1977
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Appointed to finish Murphy's term, having been elected to the next term.
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Elected in 1970.Lost re-election, resigned early to give successor preferential seniority.
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22
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92nd
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93rd
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94th
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22
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Re-elected in 1974.
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25
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S. I. Hayakawa
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Republican
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Jan 2, 1977 β Jan 3, 1983
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Appointed to finish Tunney's term, having been elected to the next term.
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Elected in 1976.Retired.
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23
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95th
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96th
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97th
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23
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Re-elected in 1980.
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26
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Pete Wilson
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Republican
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Jan 3, 1983 β Jan 7, 1991
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Elected in 1982.
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24
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98th
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99th
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100th
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24
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Re-elected in 1986.Retired.
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Re-elected in 1988.Resigned to become Governor of California.
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25
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101st
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102nd
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27
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John Seymour
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Republican
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Jan 7, 1991 β Nov 3, 1992
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Appointed to continue Wilson's term.Lost election to finish Wilson's term.
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28
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Dianne Feinstein
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Democratic
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Nov 4, 1992 β Sep 29, 2023
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Elected in 1992 to finish Wilson's term.
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103rd
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25
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Elected in 1992.
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Jan 3, 1993 β Jan 3, 2017
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Democratic
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Barbara Boxer
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16
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Re-elected in 1994.
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26
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104th
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105th
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106th
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26
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Re-elected in 1998.
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Re-elected in 2000.
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27
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107th
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108th
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109th
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27
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Re-elected in 2004.
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Re-elected in 2006.
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28
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110th
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111th
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112th
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28
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Re-elected in 2010.Retired.
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Re-elected in 2012.
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29
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113th
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114th
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115th
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29
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Elected in 2016.Resigned to become U.S. Vice President.
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Jan 3, 2017 β Jan 18, 2021
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Democratic
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Kamala Harris
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17
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Re-elected in 2018.Announced retirement, then died.
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30
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116th
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117th
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Appointed to continue Harris's term.Elected in 2022 to finish Harris's term.
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Jan 18, 2021 β present
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Democratic
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Alex Padilla
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18
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118th
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30
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Elected to full term in 2022.
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Vacant
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Sep 29, 2023 β Oct 1, 2023
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29
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Laphonza Butler
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Democratic
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Oct 1, 2023 β present
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Appointed to continue Feinstein's term.Retiring when her successor will be elected.
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To be determined in the 2024 special election.
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To be determined in the 2024 election.
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31
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119th
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120th
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121st
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31
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To be determined in the 2028 election.
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#
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Senator
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Party
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Years in office
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Electoral history
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T
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C
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T
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Electoral history
|
Years in office
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Party
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Senator
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#
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Class 1
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Class 3
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