California State Senate seat · lines in effect since 2022
California Senate District 21
A district of about 1,043,000 people, 51% Hispanic, 33% of adults with a bachelor's degree. It votes D+25.1 relative to the nation for president.
2024 election
Nov 5, 2024- Monique Limón (D) · won63.3%
- Elijah Mack (R)36.7%
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 | Monique Limón (D) | Elijah Mack (R) | 26.6 |
| Lines first used in 2012 | |||
| 2020 | Scott Wilk (R) | Kipp Mueller (D) | 1.6 |
| 2016 | Scott Wilk (R) | Johnathon Levar Ervin (D) | 5.7 |
| 2012 | Stephen Knight (R) | Star Moffatt (D) | 15.3 |
| Lines first used in 2002 | |||
| 2008 | Carol Liu (D) | Teddy Choi (R) | 41.6 |
| 2004 | Jack Scott (D) | Bob New (I) | 56.1 |
| Lines first used in 1992 | |||
| 2000 | Jack Scott (D) | Paul Zee (R) | 21.3 |
| 1996 | Adam B. Schiff (D)Flip | Paula L. Boland (R) | 7.7 |
| 1992 | Newton R. Russell (R) | Rachel J. Dewey (D) | 6.3 |
| Lines first used in 1982 | |||
| 1988 | Newton R. Russell (R) | Louise C. Gelber (D) | 40.4 |
| 1984 | Newton R. Russell (R) | Kathy Moyd (D) | 50.2 |
| Lines first used in 1972 | |||
| 1980 | Newton R. Russell (R) | Samuel H. Cogar (D) | 49.0 |
| 1976 | Newton R. Russell (R) | Raymond J. Loftus (D) | 31.4 |
| 1972 | John L. Harmer (R) | Samuel Rifken (D) | 36.3 |
| Lines first used in 1962 | |||
| 1968 | John L. Harmer (R) | Tom Blodgett (D) | 45.6 |
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 21
The state's districts in other chambers that share residents with this one, and the share of District 21'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 21.
Lower than 56% of seats.
Higher than 67% of seats.
Higher than 69% of seats.
Lower than 90% of seats.
Lower than 85% of seats.
Less dense than 82% 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 1746% Hispanic · 35% college gradsD+34.8Not up in 2026District 18
69% Hispanic · 23% college gradsD+17.8Held DDistrict 3
31% Hispanic · 34% college gradsD+29.4Not up in 2026District 14
66% HispanicD+8.4Held D
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