electionsmcp › races › Illinois State Senate District 55
Illinois State Senate District 55
The current officeholder, the 2024 result, and a precinct-level model you can run yourself — built from how Illinois actually voted.
Model Illinois State Senate District 55 →
Current officeholder
Jason Plummer Republican
2024 result
Republican R+100.0
2024 votes cast
26,525
Office
State Senate
Precinct results — 2024 general
233 precincts reported in Illinois State Senate District 55's 2024 general election. The twenty largest:
| Precinct | Winner | Margin | Votes |
|---|---|---|---|
| 17163-O FALLON 16 | Republican | R+100.0 | 978 |
| 17027-BREESE 3 | Republican | R+100.0 | 964 |
| 17119-PIN OAK 03 | Republican | R+100.0 | 853 |
| 17163-O FALLON 15 | Republican | R+100.0 | 842 |
| 17119-ALHAMBRA 01 | Republican | R+100.0 | 825 |
| 17119-OMPHGHENT 01 | Republican | R+100.0 | 814 |
| 17027-ST ROSE | Republican | R+100.0 | 810 |
| 17119-JARVIS 10 | Republican | R+100.0 | 809 |
| 17027-SUGAR CREEK 2 | Republican | R+100.0 | 807 |
| 17121-SALEM 8 | Republican | R+100.0 | 807 |
| 17119-SALINE 05 | Republican | R+100.0 | 794 |
| 17119-PIN OAK 01 | Republican | R+100.0 | 788 |
| 17119-HELVETIA 06 | Republican | R+100.0 | 783 |
| 17189-OKAWVILLE 1-003 | Republican | R+100.0 | 776 |
| 17119-JARVIS 04 | Republican | R+100.0 | 773 |
| 17027-SUGAR CREEK 1 | Republican | R+100.0 | 771 |
| 17119-HAMEL 02 | Republican | R+100.0 | 765 |
| 17121-RACCOON | Republican | R+100.0 | 759 |
| 17027-BREESE 4 | Republican | R+100.0 | 756 |
| 17119-ST. JACOB 01 | Republican | R+100.0 | 748 |
All 233 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 Illinois State Senate District 55 in five steps
- Set the candidates. Name the contenders for the Illinois State Senate District 55 (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 Illinois State Senate District 55 in the simulator →
Frequently asked
Who represents Illinois State Senate District 55?
Jason Plummer (Republican) currently holds this State Senate seat.
What was the 2024 result in Illinois State Senate District 55?
R+100.0 — 0 Democratic, 26,525 Republican, of 26,525 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.