electionsmcp › races › Montana State Senate District 21
Montana State Senate District 21
The current officeholder, the 2024 result, and a precinct-level model you can run yourself — built from how Montana actually voted.
Model Montana State Senate District 21 →
Current officeholder
Jason Small Republican
2024 result
Republican R+13.6
2024 votes cast
6,681
Office
State Senate
Precinct results — 2024 general
25 precincts reported in Montana State Senate District 21's 2024 general election. The twenty largest:
| Precinct | Winner | Margin | Votes |
|---|---|---|---|
| 30111-15 | Republican | R+43.6 | 1,053 |
| 30111-14 | Republican | R+13.9 | 681 |
| 30003-PRECINCT #7 | Democratic | D+11.9 | 513 |
| 30003-PRECINCT #19 | Republican | R+36.7 | 493 |
| 30087-PRECINCT 15 | Democratic | D+52.1 | 484 |
| 30003-PRECINCT #21 | Republican | R+5.6 | 409 |
| 30003-PRECINCT #18 | Republican | R+35.0 | 369 |
| 30003-PRECINCT #17 | Republican | R+35.3 | 368 |
| 30087-PRECINCT 17 | Democratic | D+7.3 | 289 |
| 30003-PRECINCT #15 | Republican | R+2.7 | 263 |
| 30003-PRECINCT #26 | Democratic | D+35.0 | 246 |
| 30003-PRECINCT #14 | Republican | R+3.7 | 164 |
| 30003-PRECINCT #5 | Republican | R+9.7 | 155 |
| 30003-PRECINCT #2 | Republican | R+16.8 | 149 |
| 30003-PRECINCT #11 | Republican | R+9.7 | 144 |
| 30003-PRECINCT #20 | Republican | R+65.9 | 129 |
| 30003-PRECINCT #8 | Republican | R+56.8 | 111 |
| 30003-PRECINCT #9 | Democratic | D+32.1 | 109 |
| 30003-PRECINCT #12 | Democratic | D+48.6 | 105 |
| 30003-PRECINCT #1 | Republican | R+38.6 | 88 |
All 25 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 Montana State Senate District 21 in five steps
- Set the candidates. Name the contenders for the Montana State Senate District 21 (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 Montana State Senate District 21 in the simulator →
Frequently asked
Who represents Montana State Senate District 21?
Jason Small (Republican) currently holds this State Senate seat.
What was the 2024 result in Montana State Senate District 21?
R+13.6 — 2,885 Democratic, 3,796 Republican, of 6,681 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.