electionsmcp › races › California State House District 18
California State House District 18
The current officeholder, the 2024 result, and a precinct-level model you can run yourself — built from how California actually voted.
Model California State House District 18 →
Current officeholder
Mia Bonta Democratic
2024 result
Democratic D+80.3
2024 votes cast
167,023
Office
State House
Precinct results — 2024 general
204 precincts reported in California State House District 18's 2024 general election. The twenty largest:
| Precinct | Winner | Margin | Votes |
|---|---|---|---|
| 06001-302200A | Democratic | D+76.9 | 3,357 |
| 06001-304800A | Democratic | D+78.3 | 3,284 |
| 06001-224000A | Democratic | D+85.4 | 3,253 |
| 06001-301900A | Democratic | D+78.7 | 3,093 |
| 06001-300150A | Democratic | D+73.4 | 3,057 |
| 06001-305700A | Democratic | D+76.0 | 2,856 |
| 06001-300300A | Democratic | D+77.4 | 2,788 |
| 06001-303800A | Democratic | D+77.4 | 2,774 |
| 06001-310000A | Democratic | D+87.1 | 2,671 |
| 06001-325100A | Democratic | D+86.5 | 2,655 |
| 06001-311400A | Democratic | D+86.9 | 2,596 |
| 06001-345500A | Democratic | D+84.0 | 2,572 |
| 06001-310600A | Democratic | D+90.4 | 2,508 |
| 06001-302700A | Democratic | D+78.2 | 2,467 |
| 06001-323200A | Democratic | D+86.0 | 2,464 |
| 06001-305110A | Democratic | D+78.0 | 2,339 |
| 06001-362600A | Democratic | D+87.8 | 2,337 |
| 06001-410500A | Democratic | D+78.6 | 2,243 |
| 06001-365100A | Democratic | D+85.2 | 2,185 |
| 06001-380400A | Democratic | D+84.0 | 2,180 |
All 204 precincts are modelable — open the race in the simulator and drill to precinct grain.
Find your district
Enter a ZIP code or a district (e.g. NC-4) to find your U.S. House district and who represents it.
Model California State House District 18 in five steps
- Set the candidates. Name the contenders for the California State House District 18 (or keep the generic Democrat / Republican defaults). The map starts from real 2024 results in every precinct.
- Apply a swing. Move vote share statewide, or by demographic cohort, with a slider. The map and the running tally recompute instantly.
- Model turnout. Mobilize or depress turnout for any group — turnout and persuasion are modeled separately, the way a real campaign thinks about them.
- Drill to precincts. Zoom from the state down to individual precincts and override any of them by hand.
- Roll up & share. Roll the result up to chamber control, then publish a shareable, frozen link to your scenario.
Open California State House District 18 in the simulator →
Frequently asked
Who represents California State House District 18?
Mia Bonta (Democratic) currently holds this State House seat.
What was the 2024 result in California State House District 18?
D+80.3 — 134,051 Democratic, 0 Republican, of 167,023 votes cast.
Can I model this race myself?
Yes — open it in the electionsmcp simulator and model vote-share swing and turnout from the real 2024 baseline, down to the precinct, then roll it up to chamber control.