List of United States senators from California

elects United States senators to class 1 and class 3. The state has been represented by 48 people in the Senate since it was admitted to the Union on September 9, 1850. Its U.S. senators are Democrats Alex Padilla and Adam Schiff. Dianne Feinstein was the state's longest serving senator, serving from 1992 until her death in 2023.

List of senators

! 1
! rowspan=11 | 1
! rowspan=4 | 2
! rowspan=2 | 3
! 4
! rowspan=2 | 5
! rowspan=3 | 2
! rowspan=3 | 6
! rowspan=3 | 3
! rowspan=3 | 7
! rowspan=5 | 4
! 8
! rowspan=3 | 9
! rowspan=3 | 5
! rowspan=3 | 10
! rowspan=10 | 6
! 11
! 12
! rowspan=2 | 13
! 14
! rowspan=5 | 15
! rowspan=12 | 7
! rowspan=3 | 16
! rowspan=3 | 17
! rowspan=3 | 18
! rowspan=3 | 8
! rowspan=16 | 19
! rowspan=6 | 9
! rowspan=3 | 10
! 11
! rowspan=8 | 12
! rowspan=9 | 20
! rowspan=2 | 13
! rowspan=12 | 14
! rowspan=3 | 21
! 22
! rowspan=4 | 23
! rowspan=16 | 15
! rowspan=4 | 24
! rowspan=4 | 25
! rowspan=5 | 26
! 27
! rowspan=18 | 28
! rowspan=12 | 16
! rowspan=3 | 17
! rowspan=7 | 18
! 29
! rowspan="4" | 30