Senators


#	Office Holder	Party	Entered Office \| Age	Left Office \| Age	Tenure (y\|m\|d)	Reason for Leaving
1	John C. Fremont	Republican	Mar 10, 1850 \| 37	Mar 3, 1851 \| 38	0y \| 11m \| 21d	Did not seek reelection
2	John B. Weller	Democratic	Jan 30, 1852 \| 39	Mar 3, 1857 \| 45	5y \| 1m \| 1d	Lost reelection
3	David C. Broderick	Democratic	Mar 4, 1857 \| 37	Sep 16, 1859 \| 39	2y \| 6m \| 12d	Died
4	Henry P. Haun	Democratic	Nov 3, 1859 \| 44	Mar 4, 1860 \| 45	0y \| 4m \| 1d	Lost election
5	Milton Latham	Democratic	Mar 5, 1860 \| 32	Mar 3, 1863 \| 35	2y \| 11m \| 26d	Lost reelection
6	John Conness	Republican	Mar 4, 1863 \| 41	Mar 3, 1869 \| 47	5y \| 11m \| 27d	Did not seek reelection
7	Eugene Casserly	Democratic	Mar 4, 1869 \| 48	Nov 29, 1873 \| 53	4y \| 8m \| 25d	Resigned
8	John S. Hager	Democratic	Dec 23, 1873 \| 55	Mar 3, 1875 \| 56	1y \| 2m \| 8d	Retired
9	Newton Booth	Anti-Monopolist	Mar 4, 1875 \| 49	Mar 3, 1881 \| 55	5y \| 11m \| 27d	Retired
10	John F. Miller	Republican	Mar 4, 1881 \| 49	Mar 8, 1886 \| 54	5y \| 0m \| 4d	Died
11	George Hearst	Democratic	Mar 23, 1886 \| 65	Aug 3, 1886 \| 65	0y \| 4m \| 11d	Successor qualified
12	Abram P. Williams	Republican	Aug 4, 1886 \| 54	Mar 3, 1887 \| 55	0y \| 6m \| 27d	Retired
13	Charles N. Felton	Republican	Mar 19, 1891 \| 59	Mar 3, 1893 \| 61	1y \| 11m \| 12d	Retired
14	Stephen M. White	Democratic	Mar 4, 1893 \| 40	Mar 3, 1899 \| 46	5y \| 11m \| 27d	Retired
15	Thomas R. Bard	Republican	Feb 7, 1900 \| 58	Mar 3, 1905 \| 63	5y \| 0m \| 24d	Lost reelection
16	Frank P. Flint	Republican	Mar 4, 1905 \| 42	Mar 3, 1911 \| 48	5y \| 11m \| 27d	Retired
17	John D. Works	Republican	Mar 4, 1911 \| 63	Mar 4, 1917 \| 69	6y \| 0m \| 0d	Retired
18	Hiram Johnson	Republican	Mar 16, 1917 \| 50	Aug 6, 1945 \| 78	28y \| 4m \| 21d	Died
19	William F. Knowland	Republican	Aug 26, 1945 \| 37	Jan 2, 1959 \| 50	13y \| 4m \| 7d	Retired
20	Clair Engle	Democratic	Jan 3, 1959 \| 47	Jul 30, 1964 \| 52	5y \| 6m \| 27d	Died
21	Pierre Salinger	Democratic	Aug 4, 1964 \| 39	Dec 31, 1964 \| 39	0y \| 4m \| 27d	Lost election
22	George Murphy	Republican	Jan 1, 1965 \| 62	Jan 1, 1971 \| 68	6y \| 0m \| 0d	Lost reelection
23	John V. Tunney	Democratic	Jan 2, 1971 \| 36	Jan 1, 1977 \| 42	5y \| 11m \| 30d	Lost reelection
24	S. I. Hayakawa	Republican	Jan 2, 1977 \| 70	Jan 2, 1983 \| 76	6y \| 0m \| 0d	Retired
25	Pete Wilson	Republican	Jan 3, 1983 \| 49	Jan 6, 1991 \| 57	8y \| 0m \| 3d	Resigned
26	John F. Seymour	Republican	Jan 7, 1991 \| 53	Nov 3, 1992 \| 54	1y \| 9m \| 27d	Lost election
27	Dianne Feinstein	Democratic	Nov 4, 1992 \| 59	Sep 28, 2023 \| 90	30y \| 10m \| 24d	Died
28	Laphonza R. Butler	Democratic	Oct 3, 2023 \| 48	Dec 8, 2024 \| 49	1y \| 2m \| 5d	Resigned
29	Adam Schiff	Democratic	Dec 8, 2024 \| 64	Incumbent \| 65	0y \| 11m \| 9d	Incumbent