California State Senate seat · lines in effect since 2022
California Senate District 31
A district of about 896,000 people, 64% Hispanic, 20% of adults with a bachelor's degree. It votes D+12.2 relative to the nation for president.
2024 election
Nov 5, 2024- Sabrina Cervantes (D) · won54.3%
- Cynthia Navarro (R)45.7%
Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 12:13 PM ET
Where it sits among all 40 seats
Every California State Senate seat by partisan lean, from most Democratic to most Republican. Lean is the seat's presidential vote on current lines, relative to the nation.
Democratic
Source: 99chambers: 2024 and 2020 presidential results on current lines, relative to the nation (2024 weighted 3:1)Updated Oct 16, 2026, 5:19 AM ET
Every election for this seat
15 races since 1968; the seat changed party 1 time. District numbers are redrawn after each census: each group is one set of lines.
| Year | Winner | Runner-up | Won by |
|---|---|---|---|
| Lines first used in 2022 | |||
| 2024 | Sabrina Cervantes (D) | Cynthia Navarro (R) | 8.6 |
| Lines first used in 2012 | |||
| 2020 | Richard Roth (D) | Rod D. Taylor (R) | 18.0 |
| 2016 | Richard Roth (D) | Richard Reed (R) | 21.1 |
| 2012 | Richard Roth (D) | Jeff Miller (R) | 10.6 |
| Lines first used in 2002 | |||
| 2008 | Bob Dutton (R) | Ameenah Fuller (D) | 17.4 |
| 2004 | Bob Dutton (R) | Marjorie Musser Mikels (D) | 19.0 |
| Lines first used in 1992 | |||
| 2000 | James Brulte (R) | Mike Rayburn (D) | 21.3 |
| 1996 | James Brulte (R) | Gary George (D) | 16.3 |
| 1992 | Bill Leonard (R) | — | Unopposed |
| Lines first used in 1982 | |||
| 1988 | William Campbell (R) | Janice Lynn Graham (D) | 37.8 |
| 1984 | William Campbell (R) | Stan Caress (D) | 50.1 |
| Lines first used in 1972 | |||
| 1980 | Ollie Speraw (R) | Robert E. Fronke (D) | 9.2 |
| 1976 | George Deukmejian (R)Flip | Renee Simon (D) | 4.7 |
| 1972 | James O. Wedworth (D) | John Mann (R) | 46.2 |
| Lines first used in 1962 | |||
| 1968 | James O. Wedworth (D) | Gary R. Arnold (R) | 39.1 |
Won by: the winner's lead over the runner-up, in points of the vote. Source: 99chambers results archive (MEDSL, Klarner, state election offices)
Districts that overlap District 31
The state's districts in other chambers that share residents with this one, and the share of District 31's area in each.
Who lives here, compared
Grey bars show the spread of all 40 seats. Small marks are other seats in California. The black marker is District 31.
Lower than 95% of seats.
Lower than 64% of seats.
Higher than 85% of seats.
Higher than 82% of seats.
Lower than 74% of seats.
Denser than 59% of seats.
Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current linesUpdated Oct 13, 2026, 5:06 AM ET
Seats most like this one
Nearest seats on demographics, density and lean.
District 2964% Hispanic · 21% college gradsD+14.5Not up in 2026District 22
63% Hispanic · 24% college gradsD+18.5Held DDistrict 14
66% HispanicD+8.4Held DDistrict 23
51% Hispanic · 23% college gradsD+0.6Not up in 2026
Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current lines; 99chambers: 2024 and 2020 presidential results on current lines, relative to the nation (2024 weighted 3:1)Updated Oct 16, 2026, 5:19 AM ET