Senate districts established by the California Citizens Redistricting Commission (CRC) in 2011 and 2021.
- Even numbered Senate districts changed with the 2022 election cycle into the 2021 Certified Senate districts.
- Odd numbered Senate districts will change to the 2021 Certified districts with the 2024 election cycle. Until then the odd numbered 2011 Certified Senate districts are still active.
- Accelerated Areas occur where an existing odd-district is overlain by a new even-district. The constituents in the accelerated areas will have two Senators who may represent them.
- Deferred Areas occur when an area that was an even-numbered district in the 2011 redistricting plan becomes an odd-numbered district in the 2021 redistricting plan. The area does not have a Senator until the conclusion of the 2024 election when the new odd-numbered district becomes active. During the 2023-2024 session the Senate Rules Committee assigns Senators to provide constituent services in deferred areas.
Find Your Senator - Address Lookup
State and Regional maps
Maps and reports are in PDF format.
2011 Districts
2021 Districts
- 2021 Certified Senate Districts
- 2021 Certified Assembly Districts
- 2021 Certified Congressional Districts
- Map of Senate districts changing with 2022 election
- Map of Senate districts changing with 2024 election
2023-2024 Session
- 2023-2024 Senate Map with Accelerated and Deferred Areas
- 2023-2024 Senate Deferred Area Member Assignments - Census Place Listing
- 2023-2024 Senate Accelerated Area - Census Place Listing
Senate District: 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40
- SD 1
- SD 1 - Folsom zoom
- SD 1 - Assigned Deferred Area
- SD 1 - Assigned Deferred Area Zoom
- SD 1 - Accelerated Area Zoom
- SD 3
- SD 3 - Contra Costa County zoom
- SD 3 - Sonoma zoom
- SD 3 - Assigned Deferred Area
- SD 3 - Assigned Deferred Area Zoom
- SD 3 - Accelerated Area Zoom
- SD 4
- SD 4 - Accelerated Area
- SD 4 - Accelerated Area Modesto Zoom
- SD 4 - Accelerated Area Placer/Nevada Zoom
- SD 18
- SD 18 - Assigned Deferred Area
- SD 18 - Assigned Deferred Area - Riverside
- SD 18 - Assigned Deferred Area - San Diego
- SD 23
- SD 23 - Assigned Deferred Area
- SD 23 - Assigned Deferred Area Zoom
- SD 23 - Accelerated Area Zoom
- SD 27
- SD 27 - Los Angeles zoom
- SD 27 - Accelerated Area
- SD 27 - Accelerated Area with SD 20 - Zoom
- SD 27 - Accelerated Area with SD 24 - Zoom
- SD 29
- SD 29 - Accelerated Area
- SD 29 - Accelerated Area with SD 22 - Zoom
- SD 29 - Accelerated Area with SD 30 - Zoom
- SD 29 - Accelerated Area with SD 32 - Zoom
- SD 29 - Accelerated Area with SD 34 - Zoom
- SD 29 - Accelerated Area with SD 36 - Zoom
- SD 37
- SD 37 - Accelerated Area
- SD 37 - Accelerated Area with SD 32, SD 34, SD 38 - Zoom
- SD 37 - Accelerated Area with SD 36 - Zoom